Cargo.lock

@@ -429,6 +429,15 @@ dependencies = [
  "wait-timeout",
 ]
 
+[[package]]
+name = "assertor"
+version = "0.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ff24d87260733dc86d38a11c60d9400ce4a74a05d0dafa2a6f5ab249cd857cb"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "async-broadcast"
 version = "0.7.2"
@@ -665,6 +674,22 @@ dependencies = [
  "serde_with",
 ]
 
+[[package]]
+name = "brocade"
+version = "0.1.0"
+dependencies = [
+ "async-trait",
+ "env_logger",
+ "harmony_secret",
+ "harmony_types",
+ "log",
+ "regex",
+ "russh",
+ "russh-keys",
+ "serde",
+ "tokio",
+]
+
 [[package]]
 name = "brotli"
 version = "8.0.2"
@@ -1795,6 +1820,18 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "example-openbao"
+version = "0.1.0"
+dependencies = [
+ "harmony",
+ "harmony_cli",
+ "harmony_macros",
+ "harmony_types",
+ "tokio",
+ "url",
+]
+
 [[package]]
 name = "example-opnsense"
 version = "0.1.0"
@@ -1881,6 +1918,8 @@ dependencies = [
  "env_logger",
  "harmony",
  "harmony_macros",
+ "harmony_secret",
+ "harmony_secret_derive",
  "harmony_tui",
  "harmony_types",
  "log",
@@ -2305,9 +2344,11 @@ name = "harmony"
 version = "0.1.0"
 dependencies = [
  "askama",
+ "assertor",
  "async-trait",
  "base64 0.22.1",
  "bollard",
+ "brocade",
  "chrono",
  "cidr",
  "convert_case",
@@ -2338,6 +2379,7 @@ dependencies = [
  "once_cell",
  "opnsense-config",
  "opnsense-config-xml",
+ "option-ext",
  "pretty_assertions",
  "reqwest 0.11.27",
  "russh",
@@ -3878,6 +3920,7 @@ checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 name = "opnsense-config"
 version = "0.1.0"
 dependencies = [
+ "assertor",
  "async-trait",
  "chrono",
  "env_logger",
@@ -4537,9 +4580,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.11.2"
+version = "1.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23d7fd106d8c02486a8d64e778353d1cffe08ce79ac2e82f540c86d0facf6912"
+checksum = "8b5288124840bee7b386bc413c487869b360b2b4ec421ea56425128692f2a82c"
 dependencies = [
  "aho-corasick 1.1.3",
  "memchr",
@@ -4549,9 +4592,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.10"
+version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b9458fa0bfeeac22b5ca447c63aaf45f28439a709ccd244698632f9aa6394d6"
+checksum = "833eb9ce86d40ef33cb1306d8accf7bc8ec2bfea4355cbdebb3df68b40925cad"
 dependencies = [
  "aho-corasick 1.1.3",
  "memchr",

Cargo.toml

@@ -14,7 +14,9 @@ members = [
   "harmony_composer",
   "harmony_inventory_agent",
   "harmony_secret_derive",
-  "harmony_secret", "adr/agent_discovery/mdns",
+  "harmony_secret",
+  "adr/agent_discovery/mdns",
+  "brocade",
 ]
 
 [workspace.package]
@@ -66,5 +68,12 @@ thiserror = "2.0.14"
 serde = { version = "1.0.209", features = ["derive", "rc"] }
 serde_json = "1.0.127"
 askama = "0.14"
-sqlx = { version = "0.8", features = ["runtime-tokio", "sqlite" ] }
-reqwest = { version = "0.12", features = ["blocking", "stream", "rustls-tls", "http2", "json"], default-features = false }
+sqlx = { version = "0.8", features = ["runtime-tokio", "sqlite"] }
+reqwest = { version = "0.12", features = [
+  "blocking",
+  "stream",
+  "rustls-tls",
+  "http2",
+  "json",
+], default-features = false }
+assertor = "0.0.4"

brocade/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "brocade"
+edition = "2024"
+version.workspace = true
+readme.workspace = true
+license.workspace = true
+
+[dependencies]
+async-trait.workspace = true
+harmony_types = { path = "../harmony_types" }
+russh.workspace = true
+russh-keys.workspace = true
+tokio.workspace = true
+log.workspace = true
+env_logger.workspace = true
+regex = "1.11.3"
+harmony_secret = { path = "../harmony_secret" }
+serde.workspace = true

brocade/examples/main.rs

@@ -0,0 +1,70 @@
+use std::net::{IpAddr, Ipv4Addr};
+
+use brocade::BrocadeOptions;
+use harmony_secret::{Secret, SecretManager};
+use harmony_types::switch::PortLocation;
+use serde::{Deserialize, Serialize};
+
+#[derive(Secret, Clone, Debug, Serialize, Deserialize)]
+struct BrocadeSwitchAuth {
+    username: String,
+    password: String,
+}
+
+#[tokio::main]
+async fn main() {
+    env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
+
+    // let ip = IpAddr::V4(Ipv4Addr::new(10, 0, 0, 250)); // old brocade @ ianlet
+    let ip = IpAddr::V4(Ipv4Addr::new(192, 168, 55, 101)); // brocade @ sto1
+    // let ip = IpAddr::V4(Ipv4Addr::new(192, 168, 4, 11)); // brocade @ st
+    let switch_addresses = vec![ip];
+
+    let config = SecretManager::get_or_prompt::<BrocadeSwitchAuth>()
+        .await
+        .unwrap();
+
+    let brocade = brocade::init(
+        &switch_addresses,
+        22,
+        &config.username,
+        &config.password,
+        Some(BrocadeOptions {
+            dry_run: true,
+            ..Default::default()
+        }),
+    )
+    .await
+    .expect("Brocade client failed to connect");
+
+    let entries = brocade.get_stack_topology().await.unwrap();
+    println!("Stack topology: {entries:#?}");
+
+    let entries = brocade.get_interfaces().await.unwrap();
+    println!("Interfaces: {entries:#?}");
+
+    let version = brocade.version().await.unwrap();
+    println!("Version: {version:?}");
+
+    println!("--------------");
+    let mac_adddresses = brocade.get_mac_address_table().await.unwrap();
+    println!("VLAN\tMAC\t\t\tPORT");
+    for mac in mac_adddresses {
+        println!("{}\t{}\t{}", mac.vlan, mac.mac_address, mac.port);
+    }
+
+    println!("--------------");
+    let channel_name = "1";
+    brocade.clear_port_channel(channel_name).await.unwrap();
+
+    println!("--------------");
+    let channel_id = brocade.find_available_channel_id().await.unwrap();
+
+    println!("--------------");
+    let channel_name = "HARMONY_LAG";
+    let ports = [PortLocation(2, 0, 35)];
+    brocade
+        .create_port_channel(channel_id, channel_name, &ports)
+        .await
+        .unwrap();
+}

brocade/src/fast_iron.rs

@@ -0,0 +1,211 @@
+use super::BrocadeClient;
+use crate::{
+    BrocadeInfo, Error, ExecutionMode, InterSwitchLink, InterfaceInfo, MacAddressEntry,
+    PortChannelId, PortOperatingMode, parse_brocade_mac_address, shell::BrocadeShell,
+};
+
+use async_trait::async_trait;
+use harmony_types::switch::{PortDeclaration, PortLocation};
+use log::{debug, info};
+use regex::Regex;
+use std::{collections::HashSet, str::FromStr};
+
+pub struct FastIronClient {
+    shell: BrocadeShell,
+    version: BrocadeInfo,
+}
+
+impl FastIronClient {
+    pub fn init(mut shell: BrocadeShell, version_info: BrocadeInfo) -> Self {
+        shell.before_all(vec!["skip-page-display".into()]);
+        shell.after_all(vec!["page".into()]);
+
+        Self {
+            shell,
+            version: version_info,
+        }
+    }
+
+    fn parse_mac_entry(&self, line: &str) -> Option<Result<MacAddressEntry, Error>> {
+        debug!("[Brocade] Parsing mac address entry: {line}");
+        let parts: Vec<&str> = line.split_whitespace().collect();
+        if parts.len() < 3 {
+            return None;
+        }
+
+        let (vlan, mac_address, port) = match parts.len() {
+            3 => (
+                u16::from_str(parts[0]).ok()?,
+                parse_brocade_mac_address(parts[1]).ok()?,
+                parts[2].to_string(),
+            ),
+            _ => (
+                1,
+                parse_brocade_mac_address(parts[0]).ok()?,
+                parts[1].to_string(),
+            ),
+        };
+
+        let port =
+            PortDeclaration::parse(&port).map_err(|e| Error::UnexpectedError(format!("{e}")));
+
+        match port {
+            Ok(p) => Some(Ok(MacAddressEntry {
+                vlan,
+                mac_address,
+                port: p,
+            })),
+            Err(e) => Some(Err(e)),
+        }
+    }
+
+    fn parse_stack_port_entry(&self, line: &str) -> Option<Result<InterSwitchLink, Error>> {
+        debug!("[Brocade] Parsing stack port entry: {line}");
+        let parts: Vec<&str> = line.split_whitespace().collect();
+        if parts.len() < 10 {
+            return None;
+        }
+
+        let local_port = PortLocation::from_str(parts[0]).ok()?;
+
+        Some(Ok(InterSwitchLink {
+            local_port,
+            remote_port: None,
+        }))
+    }
+
+    fn build_port_channel_commands(
+        &self,
+        channel_id: PortChannelId,
+        channel_name: &str,
+        ports: &[PortLocation],
+    ) -> Vec<String> {
+        let mut commands = vec![
+            "configure terminal".to_string(),
+            format!("lag {channel_name} static id {channel_id}"),
+        ];
+
+        for port in ports {
+            commands.push(format!("ports ethernet {port}"));
+        }
+
+        commands.push(format!("primary-port {}", ports[0]));
+        commands.push("deploy".into());
+        commands.push("exit".into());
+        commands.push("write memory".into());
+        commands.push("exit".into());
+
+        commands
+    }
+}
+
+#[async_trait]
+impl BrocadeClient for FastIronClient {
+    async fn version(&self) -> Result<BrocadeInfo, Error> {
+        Ok(self.version.clone())
+    }
+
+    async fn get_mac_address_table(&self) -> Result<Vec<MacAddressEntry>, Error> {
+        info!("[Brocade] Showing MAC address table...");
+
+        let output = self
+            .shell
+            .run_command("show mac-address", ExecutionMode::Regular)
+            .await?;
+
+        output
+            .lines()
+            .skip(2)
+            .filter_map(|line| self.parse_mac_entry(line))
+            .collect()
+    }
+
+    async fn get_stack_topology(&self) -> Result<Vec<InterSwitchLink>, Error> {
+        let output = self
+            .shell
+            .run_command("show interface stack-ports", crate::ExecutionMode::Regular)
+            .await?;
+
+        output
+            .lines()
+            .skip(1)
+            .filter_map(|line| self.parse_stack_port_entry(line))
+            .collect()
+    }
+
+    async fn get_interfaces(&self) -> Result<Vec<InterfaceInfo>, Error> {
+        todo!()
+    }
+
+    async fn configure_interfaces(
+        &self,
+        _interfaces: Vec<(String, PortOperatingMode)>,
+    ) -> Result<(), Error> {
+        todo!()
+    }
+
+    async fn find_available_channel_id(&self) -> Result<PortChannelId, Error> {
+        info!("[Brocade] Finding next available channel id...");
+
+        let output = self
+            .shell
+            .run_command("show lag", ExecutionMode::Regular)
+            .await?;
+        let re = Regex::new(r"=== LAG .* ID\s+(\d+)").expect("Invalid regex");
+
+        let used_ids: HashSet<u8> = output
+            .lines()
+            .filter_map(|line| {
+                re.captures(line)
+                    .and_then(|c| c.get(1))
+                    .and_then(|id_match| id_match.as_str().parse().ok())
+            })
+            .collect();
+
+        let mut next_id: u8 = 1;
+        loop {
+            if !used_ids.contains(&next_id) {
+                break;
+            }
+            next_id += 1;
+        }
+
+        info!("[Brocade] Found channel id: {next_id}");
+        Ok(next_id)
+    }
+
+    async fn create_port_channel(
+        &self,
+        channel_id: PortChannelId,
+        channel_name: &str,
+        ports: &[PortLocation],
+    ) -> Result<(), Error> {
+        info!(
+            "[Brocade] Configuring port-channel '{channel_name} {channel_id}' with ports: {ports:?}"
+        );
+
+        let commands = self.build_port_channel_commands(channel_id, channel_name, ports);
+        self.shell
+            .run_commands(commands, ExecutionMode::Privileged)
+            .await?;
+
+        info!("[Brocade] Port-channel '{channel_name}' configured.");
+        Ok(())
+    }
+
+    async fn clear_port_channel(&self, channel_name: &str) -> Result<(), Error> {
+        info!("[Brocade] Clearing port-channel: {channel_name}");
+
+        let commands = vec![
+            "configure terminal".to_string(),
+            format!("no lag {channel_name}"),
+            "write memory".to_string(),
+        ];
+        self.shell
+            .run_commands(commands, ExecutionMode::Privileged)
+            .await?;
+
+        info!("[Brocade] Port-channel '{channel_name}' cleared.");
+        Ok(())
+    }
+}

brocade/src/lib.rs

@@ -0,0 +1,336 @@
+use std::net::IpAddr;
+use std::{
+    fmt::{self, Display},
+    time::Duration,
+};
+
+use crate::network_operating_system::NetworkOperatingSystemClient;
+use crate::{
+    fast_iron::FastIronClient,
+    shell::{BrocadeSession, BrocadeShell},
+};
+
+use async_trait::async_trait;
+use harmony_types::net::MacAddress;
+use harmony_types::switch::{PortDeclaration, PortLocation};
+use regex::Regex;
+
+mod fast_iron;
+mod network_operating_system;
+mod shell;
+mod ssh;
+
+#[derive(Default, Clone, Debug)]
+pub struct BrocadeOptions {
+    pub dry_run: bool,
+    pub ssh: ssh::SshOptions,
+    pub timeouts: TimeoutConfig,
+}
+
+#[derive(Clone, Debug)]
+pub struct TimeoutConfig {
+    pub shell_ready: Duration,
+    pub command_execution: Duration,
+    pub cleanup: Duration,
+    pub message_wait: Duration,
+}
+
+impl Default for TimeoutConfig {
+    fn default() -> Self {
+        Self {
+            shell_ready: Duration::from_secs(10),
+            command_execution: Duration::from_secs(60), // Commands like `deploy` (for a LAG) can take a while
+            cleanup: Duration::from_secs(10),
+            message_wait: Duration::from_millis(500),
+        }
+    }
+}
+
+enum ExecutionMode {
+    Regular,
+    Privileged,
+}
+
+#[derive(Clone, Debug)]
+pub struct BrocadeInfo {
+    os: BrocadeOs,
+    version: String,
+}
+
+#[derive(Clone, Debug)]
+pub enum BrocadeOs {
+    NetworkOperatingSystem,
+    FastIron,
+    Unknown,
+}
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone)]
+pub struct MacAddressEntry {
+    pub vlan: u16,
+    pub mac_address: MacAddress,
+    pub port: PortDeclaration,
+}
+
+pub type PortChannelId = u8;
+
+/// Represents a single physical or logical link connecting two switches within a stack or fabric.
+///
+/// This structure provides a standardized view of the topology regardless of the
+/// underlying Brocade OS configuration (stacking vs. fabric).
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct InterSwitchLink {
+    /// The local port on the switch where the topology command was run.
+    pub local_port: PortLocation,
+    /// The port on the directly connected neighboring switch.
+    pub remote_port: Option<PortLocation>,
+}
+
+/// Represents the key running configuration status of a single switch interface.
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct InterfaceInfo {
+    /// The full configuration name (e.g., "TenGigabitEthernet 1/0/1", "FortyGigabitEthernet 2/0/2").
+    pub name: String,
+    /// The physical location of the interface.
+    pub port_location: PortLocation,
+    /// The parsed type and name prefix of the interface.
+    pub interface_type: InterfaceType,
+    /// The primary configuration mode defining the interface's behavior (L2, L3, Fabric).
+    pub operating_mode: Option<PortOperatingMode>,
+    /// Indicates the current state of the interface.
+    pub status: InterfaceStatus,
+}
+
+/// Categorizes the functional type of a switch interface.
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub enum InterfaceType {
+    /// Physical or virtual Ethernet interface (e.g., TenGigabitEthernet, FortyGigabitEthernet).
+    Ethernet(String),
+}
+
+impl fmt::Display for InterfaceType {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            InterfaceType::Ethernet(name) => write!(f, "{name}"),
+        }
+    }
+}
+
+/// Defines the primary configuration mode of a switch interface, representing mutually exclusive roles.
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub enum PortOperatingMode {
+    /// The interface is explicitly configured for Brocade fabric roles (ISL or Trunk enabled).
+    Fabric,
+    /// The interface is configured for standard Layer 2 switching as Trunk port (`switchport mode trunk`).
+    Trunk,
+    /// The interface is configured for standard Layer 2 switching as Access port (`switchport` without trunk mode).
+    Access,
+}
+
+/// Defines the possible status of an interface.
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub enum InterfaceStatus {
+    /// The interface is connected.
+    Connected,
+    /// The interface is not connected and is not expected to be.
+    NotConnected,
+    /// The interface is not connected but is expected to be (configured with `no shutdown`).
+    SfpAbsent,
+}
+
+pub async fn init(
+    ip_addresses: &[IpAddr],
+    port: u16,
+    username: &str,
+    password: &str,
+    options: Option<BrocadeOptions>,
+) -> Result<Box<dyn BrocadeClient + Send + Sync>, Error> {
+    let shell = BrocadeShell::init(ip_addresses, port, username, password, options).await?;
+
+    let version_info = shell
+        .with_session(ExecutionMode::Regular, |session| {
+            Box::pin(get_brocade_info(session))
+        })
+        .await?;
+
+    Ok(match version_info.os {
+        BrocadeOs::FastIron => Box::new(FastIronClient::init(shell, version_info)),
+        BrocadeOs::NetworkOperatingSystem => {
+            Box::new(NetworkOperatingSystemClient::init(shell, version_info))
+        }
+        BrocadeOs::Unknown => todo!(),
+    })
+}
+
+#[async_trait]
+pub trait BrocadeClient {
+    /// Retrieves the operating system and version details from the connected Brocade switch.
+    ///
+    /// This is typically the first call made after establishing a connection to determine
+    /// the switch OS family (e.g., FastIron, NOS) for feature compatibility.
+    ///
+    /// # Returns
+    ///
+    /// A `BrocadeInfo` structure containing parsed OS type and version string.
+    async fn version(&self) -> Result<BrocadeInfo, Error>;
+
+    /// Retrieves the dynamically learned MAC address table from the switch.
+    ///
+    /// This is crucial for discovering where specific network endpoints (MAC addresses)
+    /// are currently located on the physical ports.
+    ///
+    /// # Returns
+    ///
+    /// A vector of `MacAddressEntry`, where each entry typically contains VLAN, MAC address,
+    /// and the associated port name/index.
+    async fn get_mac_address_table(&self) -> Result<Vec<MacAddressEntry>, Error>;
+
+    /// Derives the physical connections used to link multiple switches together
+    /// to form a single logical entity (stack, fabric, etc.).
+    ///
+    /// This abstracts the underlying configuration (e.g., stack ports, fabric ports)
+    /// to return a standardized view of the topology.
+    ///
+    /// # Returns
+    ///
+    /// A vector of `InterSwitchLink` structs detailing which ports are used for stacking/fabric.
+    /// If the switch is not stacked, returns an empty vector.
+    async fn get_stack_topology(&self) -> Result<Vec<InterSwitchLink>, Error>;
+
+    /// Retrieves the status for all interfaces
+    ///
+    /// # Returns
+    ///
+    /// A vector of `InterfaceInfo` structures.
+    async fn get_interfaces(&self) -> Result<Vec<InterfaceInfo>, Error>;
+
+    /// Configures a set of interfaces to be operated with a specified mode (access ports, ISL, etc.).
+    async fn configure_interfaces(
+        &self,
+        interfaces: Vec<(String, PortOperatingMode)>,
+    ) -> Result<(), Error>;
+
+    /// Scans the existing configuration to find the next available (unused)
+    /// Port-Channel ID (`lag` or `trunk`) for assignment.
+    ///
+    /// # Returns
+    ///
+    /// The smallest, unassigned `PortChannelId` within the supported range.
+    async fn find_available_channel_id(&self) -> Result<PortChannelId, Error>;
+
+    /// Creates and configures a new Port-Channel (Link Aggregation Group or LAG)
+    /// using the specified channel ID and ports.
+    ///
+    /// The resulting configuration must be persistent (saved to startup-config).
+    /// Assumes a static LAG configuration mode unless specified otherwise by the implementation.
+    ///
+    /// # Parameters
+    ///
+    /// * `channel_id`: The ID (e.g., 1-128) for the logical port channel.
+    /// * `channel_name`: A descriptive name for the LAG (used in configuration context).
+    /// * `ports`: A slice of `PortLocation` structs defining the physical member ports.
+    async fn create_port_channel(
+        &self,
+        channel_id: PortChannelId,
+        channel_name: &str,
+        ports: &[PortLocation],
+    ) -> Result<(), Error>;
+
+    /// Removes all configuration associated with the specified Port-Channel name.
+    ///
+    /// This operation should be idempotent; attempting to clear a non-existent
+    /// channel should succeed (or return a benign error).
+    ///
+    /// # Parameters
+    ///
+    /// * `channel_name`: The name of the Port-Channel (LAG) to delete.
+    ///
+    async fn clear_port_channel(&self, channel_name: &str) -> Result<(), Error>;
+}
+
+async fn get_brocade_info(session: &mut BrocadeSession) -> Result<BrocadeInfo, Error> {
+    let output = session.run_command("show version").await?;
+
+    if output.contains("Network Operating System") {
+        let re = Regex::new(r"Network Operating System Version:\s*(?P<version>[a-zA-Z0-9.\-]+)")
+            .expect("Invalid regex");
+        let version = re
+            .captures(&output)
+            .and_then(|cap| cap.name("version"))
+            .map(|m| m.as_str().to_string())
+            .unwrap_or_default();
+
+        return Ok(BrocadeInfo {
+            os: BrocadeOs::NetworkOperatingSystem,
+            version,
+        });
+    } else if output.contains("ICX") {
+        let re = Regex::new(r"(?m)^\s*SW: Version\s*(?P<version>[a-zA-Z0-9.\-]+)")
+            .expect("Invalid regex");
+        let version = re
+            .captures(&output)
+            .and_then(|cap| cap.name("version"))
+            .map(|m| m.as_str().to_string())
+            .unwrap_or_default();
+
+        return Ok(BrocadeInfo {
+            os: BrocadeOs::FastIron,
+            version,
+        });
+    }
+
+    Err(Error::UnexpectedError("Unknown Brocade OS version".into()))
+}
+
+fn parse_brocade_mac_address(value: &str) -> Result<MacAddress, String> {
+    let cleaned_mac = value.replace('.', "");
+
+    if cleaned_mac.len() != 12 {
+        return Err(format!("Invalid MAC address: {value}"));
+    }
+
+    let mut bytes = [0u8; 6];
+    for (i, pair) in cleaned_mac.as_bytes().chunks(2).enumerate() {
+        let byte_str = std::str::from_utf8(pair).map_err(|_| "Invalid UTF-8")?;
+        bytes[i] =
+            u8::from_str_radix(byte_str, 16).map_err(|_| format!("Invalid hex in MAC: {value}"))?;
+    }
+
+    Ok(MacAddress(bytes))
+}
+
+#[derive(Debug)]
+pub enum Error {
+    NetworkError(String),
+    AuthenticationError(String),
+    ConfigurationError(String),
+    TimeoutError(String),
+    UnexpectedError(String),
+    CommandError(String),
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::NetworkError(msg) => write!(f, "Network error: {msg}"),
+            Error::AuthenticationError(msg) => write!(f, "Authentication error: {msg}"),
+            Error::ConfigurationError(msg) => write!(f, "Configuration error: {msg}"),
+            Error::TimeoutError(msg) => write!(f, "Timeout error: {msg}"),
+            Error::UnexpectedError(msg) => write!(f, "Unexpected error: {msg}"),
+            Error::CommandError(msg) => write!(f, "{msg}"),
+        }
+    }
+}
+
+impl From<Error> for String {
+    fn from(val: Error) -> Self {
+        format!("{val}")
+    }
+}
+
+impl std::error::Error for Error {}
+
+impl From<russh::Error> for Error {
+    fn from(value: russh::Error) -> Self {
+        Error::NetworkError(format!("Russh client error: {value}"))
+    }
+}

brocade/src/network_operating_system.rs

@@ -0,0 +1,306 @@
+use std::str::FromStr;
+
+use async_trait::async_trait;
+use harmony_types::switch::{PortDeclaration, PortLocation};
+use log::{debug, info};
+
+use crate::{
+    BrocadeClient, BrocadeInfo, Error, ExecutionMode, InterSwitchLink, InterfaceInfo,
+    InterfaceStatus, InterfaceType, MacAddressEntry, PortChannelId, PortOperatingMode,
+    parse_brocade_mac_address, shell::BrocadeShell,
+};
+
+pub struct NetworkOperatingSystemClient {
+    shell: BrocadeShell,
+    version: BrocadeInfo,
+}
+
+impl NetworkOperatingSystemClient {
+    pub fn init(mut shell: BrocadeShell, version_info: BrocadeInfo) -> Self {
+        shell.before_all(vec!["terminal length 0".into()]);
+
+        Self {
+            shell,
+            version: version_info,
+        }
+    }
+
+    fn parse_mac_entry(&self, line: &str) -> Option<Result<MacAddressEntry, Error>> {
+        debug!("[Brocade] Parsing mac address entry: {line}");
+        let parts: Vec<&str> = line.split_whitespace().collect();
+        if parts.len() < 5 {
+            return None;
+        }
+
+        let (vlan, mac_address, port) = match parts.len() {
+            5 => (
+                u16::from_str(parts[0]).ok()?,
+                parse_brocade_mac_address(parts[1]).ok()?,
+                parts[4].to_string(),
+            ),
+            _ => (
+                u16::from_str(parts[0]).ok()?,
+                parse_brocade_mac_address(parts[1]).ok()?,
+                parts[5].to_string(),
+            ),
+        };
+
+        let port =
+            PortDeclaration::parse(&port).map_err(|e| Error::UnexpectedError(format!("{e}")));
+
+        match port {
+            Ok(p) => Some(Ok(MacAddressEntry {
+                vlan,
+                mac_address,
+                port: p,
+            })),
+            Err(e) => Some(Err(e)),
+        }
+    }
+
+    fn parse_inter_switch_link_entry(&self, line: &str) -> Option<Result<InterSwitchLink, Error>> {
+        debug!("[Brocade] Parsing inter switch link entry: {line}");
+        let parts: Vec<&str> = line.split_whitespace().collect();
+        if parts.len() < 10 {
+            return None;
+        }
+
+        let local_port = PortLocation::from_str(parts[2]).ok()?;
+        let remote_port = PortLocation::from_str(parts[5]).ok()?;
+
+        Some(Ok(InterSwitchLink {
+            local_port,
+            remote_port: Some(remote_port),
+        }))
+    }
+
+    fn parse_interface_status_entry(&self, line: &str) -> Option<Result<InterfaceInfo, Error>> {
+        debug!("[Brocade] Parsing interface status entry: {line}");
+        let parts: Vec<&str> = line.split_whitespace().collect();
+        if parts.len() < 6 {
+            return None;
+        }
+
+        let interface_type = match parts[0] {
+            "Fo" => InterfaceType::Ethernet("FortyGigabitEthernet".to_string()),
+            "Te" => InterfaceType::Ethernet("TenGigabitEthernet".to_string()),
+            _ => return None,
+        };
+        let port_location = PortLocation::from_str(parts[1]).ok()?;
+        let status = match parts[2] {
+            "connected" => InterfaceStatus::Connected,
+            "notconnected" => InterfaceStatus::NotConnected,
+            "sfpAbsent" => InterfaceStatus::SfpAbsent,
+            _ => return None,
+        };
+        let operating_mode = match parts[3] {
+            "ISL" => Some(PortOperatingMode::Fabric),
+            "Trunk" => Some(PortOperatingMode::Trunk),
+            "Access" => Some(PortOperatingMode::Access),
+            "--" => None,
+            _ => return None,
+        };
+
+        Some(Ok(InterfaceInfo {
+            name: format!("{} {}", interface_type, port_location),
+            port_location,
+            interface_type,
+            operating_mode,
+            status,
+        }))
+    }
+}
+
+#[async_trait]
+impl BrocadeClient for NetworkOperatingSystemClient {
+    async fn version(&self) -> Result<BrocadeInfo, Error> {
+        Ok(self.version.clone())
+    }
+
+    async fn get_mac_address_table(&self) -> Result<Vec<MacAddressEntry>, Error> {
+        let output = self
+            .shell
+            .run_command("show mac-address-table", ExecutionMode::Regular)
+            .await?;
+
+        output
+            .lines()
+            .skip(1)
+            .filter_map(|line| self.parse_mac_entry(line))
+            .collect()
+    }
+
+    async fn get_stack_topology(&self) -> Result<Vec<InterSwitchLink>, Error> {
+        let output = self
+            .shell
+            .run_command("show fabric isl", ExecutionMode::Regular)
+            .await?;
+
+        output
+            .lines()
+            .skip(6)
+            .filter_map(|line| self.parse_inter_switch_link_entry(line))
+            .collect()
+    }
+
+    async fn get_interfaces(&self) -> Result<Vec<InterfaceInfo>, Error> {
+        let output = self
+            .shell
+            .run_command(
+                "show interface status rbridge-id all",
+                ExecutionMode::Regular,
+            )
+            .await?;
+
+        output
+            .lines()
+            .skip(2)
+            .filter_map(|line| self.parse_interface_status_entry(line))
+            .collect()
+    }
+
+    async fn configure_interfaces(
+        &self,
+        interfaces: Vec<(String, PortOperatingMode)>,
+    ) -> Result<(), Error> {
+        info!("[Brocade] Configuring {} interface(s)...", interfaces.len());
+
+        let mut commands = vec!["configure terminal".to_string()];
+
+        for interface in interfaces {
+            commands.push(format!("interface {}", interface.0));
+
+            match interface.1 {
+                PortOperatingMode::Fabric => {
+                    commands.push("fabric isl enable".into());
+                    commands.push("fabric trunk enable".into());
+                }
+                PortOperatingMode::Trunk => {
+                    commands.push("switchport".into());
+                    commands.push("switchport mode trunk".into());
+                    commands.push("no spanning-tree shutdown".into());
+                    commands.push("no fabric isl enable".into());
+                    commands.push("no fabric trunk enable".into());
+                }
+                PortOperatingMode::Access => {
+                    commands.push("switchport".into());
+                    commands.push("switchport mode access".into());
+                    commands.push("switchport access vlan 1".into());
+                    commands.push("no spanning-tree shutdown".into());
+                    commands.push("no fabric isl enable".into());
+                    commands.push("no fabric trunk enable".into());
+                }
+            }
+
+            commands.push("no shutdown".into());
+            commands.push("exit".into());
+        }
+
+        commands.push("write memory".into());
+
+        self.shell
+            .run_commands(commands, ExecutionMode::Regular)
+            .await?;
+
+        info!("[Brocade] Interfaces configured.");
+
+        Ok(())
+    }
+
+    async fn find_available_channel_id(&self) -> Result<PortChannelId, Error> {
+        info!("[Brocade] Finding next available channel id...");
+
+        let output = self
+            .shell
+            .run_command("show port-channel", ExecutionMode::Regular)
+            .await?;
+
+        let used_ids: Vec<u8> = output
+            .lines()
+            .skip(6)
+            .filter_map(|line| {
+                let parts: Vec<&str> = line.split_whitespace().collect();
+                if parts.len() < 8 {
+                    return None;
+                }
+
+                u8::from_str(parts[0]).ok()
+            })
+            .collect();
+
+        let mut next_id: u8 = 1;
+        loop {
+            if !used_ids.contains(&next_id) {
+                break;
+            }
+            next_id += 1;
+        }
+
+        info!("[Brocade] Found channel id: {next_id}");
+        Ok(next_id)
+    }
+
+    async fn create_port_channel(
+        &self,
+        channel_id: PortChannelId,
+        channel_name: &str,
+        ports: &[PortLocation],
+    ) -> Result<(), Error> {
+        info!(
+            "[Brocade] Configuring port-channel '{channel_name} {channel_id}' with ports: {ports:?}"
+        );
+
+        let interfaces = self.get_interfaces().await?;
+
+        let mut commands = vec![
+            "configure terminal".into(),
+            format!("interface port-channel {}", channel_id),
+            "no shutdown".into(),
+            "exit".into(),
+        ];
+
+        for port in ports {
+            let interface = interfaces.iter().find(|i| i.port_location == *port);
+            let Some(interface) = interface else {
+                continue;
+            };
+
+            commands.push(format!("interface {}", interface.name));
+            commands.push("no switchport".into());
+            commands.push("no ip address".into());
+            commands.push("no fabric isl enable".into());
+            commands.push("no fabric trunk enable".into());
+            commands.push(format!("channel-group {channel_id} mode active"));
+            commands.push("no shutdown".into());
+            commands.push("exit".into());
+        }
+
+        commands.push("write memory".into());
+
+        self.shell
+            .run_commands(commands, ExecutionMode::Regular)
+            .await?;
+
+        info!("[Brocade] Port-channel '{channel_name}' configured.");
+
+        Ok(())
+    }
+
+    async fn clear_port_channel(&self, channel_name: &str) -> Result<(), Error> {
+        info!("[Brocade] Clearing port-channel: {channel_name}");
+
+        let commands = vec![
+            "configure terminal".into(),
+            format!("no interface port-channel {}", channel_name),
+            "exit".into(),
+            "write memory".into(),
+        ];
+
+        self.shell
+            .run_commands(commands, ExecutionMode::Regular)
+            .await?;
+
+        info!("[Brocade] Port-channel '{channel_name}' cleared.");
+        Ok(())
+    }
+}

brocade/src/shell.rs

@@ -0,0 +1,367 @@
+use std::net::IpAddr;
+use std::time::Duration;
+use std::time::Instant;
+
+use crate::BrocadeOptions;
+use crate::Error;
+use crate::ExecutionMode;
+use crate::TimeoutConfig;
+use crate::ssh;
+
+use log::debug;
+use log::info;
+use russh::ChannelMsg;
+use tokio::time::timeout;
+
+pub struct BrocadeShell {
+    ip: IpAddr,
+    port: u16,
+    username: String,
+    password: String,
+    options: BrocadeOptions,
+    before_all_commands: Vec<String>,
+    after_all_commands: Vec<String>,
+}
+
+impl BrocadeShell {
+    pub async fn init(
+        ip_addresses: &[IpAddr],
+        port: u16,
+        username: &str,
+        password: &str,
+        options: Option<BrocadeOptions>,
+    ) -> Result<Self, Error> {
+        let ip = ip_addresses
+            .first()
+            .ok_or_else(|| Error::ConfigurationError("No IP addresses provided".to_string()))?;
+
+        let base_options = options.unwrap_or_default();
+        let options = ssh::try_init_client(username, password, ip, base_options).await?;
+
+        Ok(Self {
+            ip: *ip,
+            port,
+            username: username.to_string(),
+            password: password.to_string(),
+            before_all_commands: vec![],
+            after_all_commands: vec![],
+            options,
+        })
+    }
+
+    pub async fn open_session(&self, mode: ExecutionMode) -> Result<BrocadeSession, Error> {
+        BrocadeSession::open(
+            self.ip,
+            self.port,
+            &self.username,
+            &self.password,
+            self.options.clone(),
+            mode,
+        )
+        .await
+    }
+
+    pub async fn with_session<F, R>(&self, mode: ExecutionMode, callback: F) -> Result<R, Error>
+    where
+        F: FnOnce(
+            &mut BrocadeSession,
+        ) -> std::pin::Pin<
+            Box<dyn std::future::Future<Output = Result<R, Error>> + Send + '_>,
+        >,
+    {
+        let mut session = self.open_session(mode).await?;
+
+        let _ = session.run_commands(self.before_all_commands.clone()).await;
+        let result = callback(&mut session).await;
+        let _ = session.run_commands(self.after_all_commands.clone()).await;
+
+        session.close().await?;
+        result
+    }
+
+    pub async fn run_command(&self, command: &str, mode: ExecutionMode) -> Result<String, Error> {
+        let mut session = self.open_session(mode).await?;
+
+        let _ = session.run_commands(self.before_all_commands.clone()).await;
+        let result = session.run_command(command).await;
+        let _ = session.run_commands(self.after_all_commands.clone()).await;
+
+        session.close().await?;
+        result
+    }
+
+    pub async fn run_commands(
+        &self,
+        commands: Vec<String>,
+        mode: ExecutionMode,
+    ) -> Result<(), Error> {
+        let mut session = self.open_session(mode).await?;
+
+        let _ = session.run_commands(self.before_all_commands.clone()).await;
+        let result = session.run_commands(commands).await;
+        let _ = session.run_commands(self.after_all_commands.clone()).await;
+
+        session.close().await?;
+        result
+    }
+
+    pub fn before_all(&mut self, commands: Vec<String>) {
+        self.before_all_commands = commands;
+    }
+
+    pub fn after_all(&mut self, commands: Vec<String>) {
+        self.after_all_commands = commands;
+    }
+}
+
+pub struct BrocadeSession {
+    pub channel: russh::Channel<russh::client::Msg>,
+    pub mode: ExecutionMode,
+    pub options: BrocadeOptions,
+}
+
+impl BrocadeSession {
+    pub async fn open(
+        ip: IpAddr,
+        port: u16,
+        username: &str,
+        password: &str,
+        options: BrocadeOptions,
+        mode: ExecutionMode,
+    ) -> Result<Self, Error> {
+        let client = ssh::create_client(ip, port, username, password, &options).await?;
+        let mut channel = client.channel_open_session().await?;
+
+        channel
+            .request_pty(false, "vt100", 80, 24, 0, 0, &[])
+            .await?;
+        channel.request_shell(false).await?;
+
+        wait_for_shell_ready(&mut channel, &options.timeouts).await?;
+
+        if let ExecutionMode::Privileged = mode {
+            try_elevate_session(&mut channel, username, password, &options.timeouts).await?;
+        }
+
+        Ok(Self {
+            channel,
+            mode,
+            options,
+        })
+    }
+
+    pub async fn close(&mut self) -> Result<(), Error> {
+        debug!("[Brocade] Closing session...");
+
+        self.channel.data(&b"exit\n"[..]).await?;
+        if let ExecutionMode::Privileged = self.mode {
+            self.channel.data(&b"exit\n"[..]).await?;
+        }
+
+        let start = Instant::now();
+        while start.elapsed() < self.options.timeouts.cleanup {
+            match timeout(self.options.timeouts.message_wait, self.channel.wait()).await {
+                Ok(Some(ChannelMsg::Close)) => break,
+                Ok(Some(_)) => continue,
+                Ok(None) | Err(_) => break,
+            }
+        }
+
+        debug!("[Brocade] Session closed.");
+        Ok(())
+    }
+
+    pub async fn run_command(&mut self, command: &str) -> Result<String, Error> {
+        if self.should_skip_command(command) {
+            return Ok(String::new());
+        }
+
+        debug!("[Brocade] Running command: '{command}'...");
+
+        self.channel
+            .data(format!("{}\n", command).as_bytes())
+            .await?;
+        tokio::time::sleep(Duration::from_millis(100)).await;
+
+        let output = self.collect_command_output().await?;
+        let output = String::from_utf8(output)
+            .map_err(|_| Error::UnexpectedError("Invalid UTF-8 in command output".to_string()))?;
+
+        self.check_for_command_errors(&output, command)?;
+        Ok(output)
+    }
+
+    pub async fn run_commands(&mut self, commands: Vec<String>) -> Result<(), Error> {
+        for command in commands {
+            self.run_command(&command).await?;
+        }
+        Ok(())
+    }
+
+    fn should_skip_command(&self, command: &str) -> bool {
+        if (command.starts_with("write") || command.starts_with("deploy")) && self.options.dry_run {
+            info!("[Brocade] Dry-run mode enabled, skipping command: {command}");
+            return true;
+        }
+        false
+    }
+
+    async fn collect_command_output(&mut self) -> Result<Vec<u8>, Error> {
+        let mut output = Vec::new();
+        let start = Instant::now();
+        let read_timeout = Duration::from_millis(500);
+        let log_interval = Duration::from_secs(3);
+        let mut last_log = Instant::now();
+
+        loop {
+            if start.elapsed() > self.options.timeouts.command_execution {
+                return Err(Error::TimeoutError(
+                    "Timeout waiting for command completion.".into(),
+                ));
+            }
+
+            if start.elapsed() > Duration::from_secs(5) && last_log.elapsed() > log_interval {
+                info!("[Brocade] Waiting for command output...");
+                last_log = Instant::now();
+            }
+
+            match timeout(read_timeout, self.channel.wait()).await {
+                Ok(Some(ChannelMsg::Data { data } | ChannelMsg::ExtendedData { data, .. })) => {
+                    output.extend_from_slice(&data);
+                    let current_output = String::from_utf8_lossy(&output);
+                    if current_output.contains('>') || current_output.contains('#') {
+                        return Ok(output);
+                    }
+                }
+                Ok(Some(ChannelMsg::Eof | ChannelMsg::Close)) => return Ok(output),
+                Ok(Some(ChannelMsg::ExitStatus { exit_status })) => {
+                    debug!("[Brocade] Command exit status: {exit_status}");
+                }
+                Ok(Some(_)) => continue,
+                Ok(None) | Err(_) => {
+                    if output.is_empty() {
+                        if let Ok(None) = timeout(read_timeout, self.channel.wait()).await {
+                            break;
+                        }
+                        continue;
+                    }
+
+                    tokio::time::sleep(Duration::from_millis(100)).await;
+                    let current_output = String::from_utf8_lossy(&output);
+                    if current_output.contains('>') || current_output.contains('#') {
+                        return Ok(output);
+                    }
+                }
+            }
+        }
+
+        Ok(output)
+    }
+
+    fn check_for_command_errors(&self, output: &str, command: &str) -> Result<(), Error> {
+        const ERROR_PATTERNS: &[&str] = &[
+            "invalid input",
+            "syntax error",
+            "command not found",
+            "unknown command",
+            "permission denied",
+            "access denied",
+            "authentication failed",
+            "configuration error",
+            "failed to",
+            "error:",
+        ];
+
+        let output_lower = output.to_lowercase();
+        if ERROR_PATTERNS.iter().any(|&p| output_lower.contains(p)) {
+            return Err(Error::CommandError(format!(
+                "Command '{command}' failed: {}",
+                output.trim()
+            )));
+        }
+
+        if !command.starts_with("show") && output.trim().is_empty() {
+            return Err(Error::CommandError(format!(
+                "Command '{command}' produced no output"
+            )));
+        }
+
+        Ok(())
+    }
+}
+
+async fn wait_for_shell_ready(
+    channel: &mut russh::Channel<russh::client::Msg>,
+    timeouts: &TimeoutConfig,
+) -> Result<(), Error> {
+    let mut buffer = Vec::new();
+    let start = Instant::now();
+
+    while start.elapsed() < timeouts.shell_ready {
+        match timeout(timeouts.message_wait, channel.wait()).await {
+            Ok(Some(ChannelMsg::Data { data })) => {
+                buffer.extend_from_slice(&data);
+                let output = String::from_utf8_lossy(&buffer);
+                let output = output.trim();
+                if output.ends_with('>') || output.ends_with('#') {
+                    debug!("[Brocade] Shell ready");
+                    return Ok(());
+                }
+            }
+            Ok(Some(_)) => continue,
+            Ok(None) => break,
+            Err(_) => continue,
+        }
+    }
+    Ok(())
+}
+
+async fn try_elevate_session(
+    channel: &mut russh::Channel<russh::client::Msg>,
+    username: &str,
+    password: &str,
+    timeouts: &TimeoutConfig,
+) -> Result<(), Error> {
+    channel.data(&b"enable\n"[..]).await?;
+    let start = Instant::now();
+    let mut buffer = Vec::new();
+
+    while start.elapsed() < timeouts.shell_ready {
+        match timeout(timeouts.message_wait, channel.wait()).await {
+            Ok(Some(ChannelMsg::Data { data })) => {
+                buffer.extend_from_slice(&data);
+                let output = String::from_utf8_lossy(&buffer);
+
+                if output.ends_with('#') {
+                    debug!("[Brocade] Privileged mode established");
+                    return Ok(());
+                }
+
+                if output.contains("User Name:") {
+                    channel.data(format!("{}\n", username).as_bytes()).await?;
+                    buffer.clear();
+                } else if output.contains("Password:") {
+                    channel.data(format!("{}\n", password).as_bytes()).await?;
+                    buffer.clear();
+                } else if output.contains('>') {
+                    return Err(Error::AuthenticationError(
+                        "Enable authentication failed".into(),
+                    ));
+                }
+            }
+            Ok(Some(_)) => continue,
+            Ok(None) => break,
+            Err(_) => continue,
+        }
+    }
+
+    let output = String::from_utf8_lossy(&buffer);
+    if output.ends_with('#') {
+        debug!("[Brocade] Privileged mode established");
+        Ok(())
+    } else {
+        Err(Error::AuthenticationError(format!(
+            "Enable failed. Output:\n{output}"
+        )))
+    }
+}

brocade/src/ssh.rs

@@ -0,0 +1,113 @@
+use std::borrow::Cow;
+use std::sync::Arc;
+
+use async_trait::async_trait;
+use russh::client::Handler;
+use russh::kex::DH_G1_SHA1;
+use russh::kex::ECDH_SHA2_NISTP256;
+use russh_keys::key::SSH_RSA;
+
+use super::BrocadeOptions;
+use super::Error;
+
+#[derive(Default, Clone, Debug)]
+pub struct SshOptions {
+    pub preferred_algorithms: russh::Preferred,
+}
+
+impl SshOptions {
+    fn ecdhsa_sha2_nistp256() -> Self {
+        Self {
+            preferred_algorithms: russh::Preferred {
+                kex: Cow::Borrowed(&[ECDH_SHA2_NISTP256]),
+                key: Cow::Borrowed(&[SSH_RSA]),
+                ..Default::default()
+            },
+        }
+    }
+
+    fn legacy() -> Self {
+        Self {
+            preferred_algorithms: russh::Preferred {
+                kex: Cow::Borrowed(&[DH_G1_SHA1]),
+                key: Cow::Borrowed(&[SSH_RSA]),
+                ..Default::default()
+            },
+        }
+    }
+}
+
+pub struct Client;
+
+#[async_trait]
+impl Handler for Client {
+    type Error = Error;
+
+    async fn check_server_key(
+        &mut self,
+        _server_public_key: &russh_keys::key::PublicKey,
+    ) -> Result<bool, Self::Error> {
+        Ok(true)
+    }
+}
+
+pub async fn try_init_client(
+    username: &str,
+    password: &str,
+    ip: &std::net::IpAddr,
+    base_options: BrocadeOptions,
+) -> Result<BrocadeOptions, Error> {
+    let ssh_options = vec![
+        SshOptions::default(),
+        SshOptions::ecdhsa_sha2_nistp256(),
+        SshOptions::legacy(),
+    ];
+
+    for ssh in ssh_options {
+        let opts = BrocadeOptions {
+            ssh,
+            ..base_options.clone()
+        };
+        let client = create_client(*ip, 22, username, password, &opts).await;
+
+        match client {
+            Ok(_) => {
+                return Ok(opts);
+            }
+            Err(e) => match e {
+                Error::NetworkError(e) => {
+                    if e.contains("No common key exchange algorithm") {
+                        continue;
+                    } else {
+                        return Err(Error::NetworkError(e));
+                    }
+                }
+                _ => return Err(e),
+            },
+        }
+    }
+
+    Err(Error::NetworkError(
+        "Could not establish ssh connection: wrong key exchange algorithm)".to_string(),
+    ))
+}
+
+pub async fn create_client(
+    ip: std::net::IpAddr,
+    port: u16,
+    username: &str,
+    password: &str,
+    options: &BrocadeOptions,
+) -> Result<russh::client::Handle<Client>, Error> {
+    let config = russh::client::Config {
+        preferred: options.ssh.preferred_algorithms.clone(),
+        ..Default::default()
+    };
+    let mut client = russh::client::connect(Arc::new(config), (ip, port), Client {}).await?;
+    if !client.authenticate_password(username, password).await? {
+        return Err(Error::AuthenticationError(
+            "ssh authentication failed".to_string(),
+        ));
+    }
+    Ok(client)
+}

examples/okd_installation/src/topology.rs

@@ -1,6 +1,6 @@
 use cidr::Ipv4Cidr;
 use harmony::{
-    hardware::{FirewallGroup, HostCategory, Location, PhysicalHost, SwitchGroup},
+    hardware::{Location, SwitchGroup},
     infra::opnsense::OPNSenseManagementInterface,
     inventory::Inventory,
     topology::{HAClusterTopology, LogicalHost, UnmanagedRouter},

examples/openbao/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "example-openbao"
+edition = "2024"
+version.workspace = true
+readme.workspace = true
+license.workspace = true
+
+[dependencies]
+harmony = { path = "../../harmony" }
+harmony_cli = { path = "../../harmony_cli" }
+harmony_macros = { path = "../../harmony_macros" }
+harmony_types = { path = "../../harmony_types" }
+tokio.workspace = true
+url.workspace = true

examples/openbao/README.md

@@ -0,0 +1,7 @@
+To install an openbao instance with harmony simply `cargo run -p example-openbao` .
+
+Depending on your environement configuration, it will either install a k3d cluster locally and deploy on it, or install to a remote cluster.
+
+Then follow the openbao documentation to initialize and unseal, this will make openbao usable.
+
+https://openbao.org/docs/platform/k8s/helm/run/

examples/openbao/src/main.rs

@@ -0,0 +1,67 @@
+use std::{collections::HashMap, str::FromStr};
+
+use harmony::{
+    inventory::Inventory,
+    modules::helm::chart::{HelmChartScore, HelmRepository, NonBlankString},
+    topology::K8sAnywhereTopology,
+};
+use harmony_macros::hurl;
+
+#[tokio::main]
+async fn main() {
+    let values_yaml = Some(
+        r#"server:
+  standalone:
+    enabled: true
+    config: |
+      listener "tcp" {
+        tls_disable = true
+        address = "[::]:8200"
+        cluster_address = "[::]:8201"
+      }
+
+      storage "file" {
+        path = "/openbao/data"
+      }
+
+  service:
+    enabled: true
+
+  dataStorage:
+    enabled: true
+    size: 10Gi
+    storageClass: null
+    accessMode: ReadWriteOnce
+
+  auditStorage:
+    enabled: true
+    size: 10Gi
+    storageClass: null
+    accessMode: ReadWriteOnce"#
+            .to_string(),
+    );
+    let openbao = HelmChartScore {
+        namespace: Some(NonBlankString::from_str("openbao").unwrap()),
+        release_name: NonBlankString::from_str("openbao").unwrap(),
+        chart_name: NonBlankString::from_str("openbao/openbao").unwrap(),
+        chart_version: None,
+        values_overrides: None,
+        values_yaml,
+        create_namespace: true,
+        install_only: true,
+        repository: Some(HelmRepository::new(
+            "openbao".to_string(),
+            hurl!("https://openbao.github.io/openbao-helm"),
+            true,
+        )),
+    };
+
+    harmony_cli::run(
+        Inventory::autoload(),
+        K8sAnywhereTopology::from_env(),
+        vec![Box::new(openbao)],
+        None,
+    )
+    .await
+    .unwrap();
+}

harmony/Cargo.toml

@@ -77,6 +77,9 @@ harmony_secret = { path = "../harmony_secret" }
 askama.workspace = true
 sqlx.workspace = true
 inquire.workspace = true
+brocade = { path = "../brocade" }
+option-ext = "0.2.0"
 
 [dev-dependencies]
 pretty_assertions.workspace = true
+assertor.workspace = true

harmony/src/domain/topology/ha_cluster.rs

@@ -1,33 +1,36 @@
 use async_trait::async_trait;
+use brocade::BrocadeOptions;
 use harmony_macros::ip;
-use harmony_types::net::MacAddress;
-use harmony_types::net::Url;
+use harmony_secret::SecretManager;
+use harmony_types::{
+    net::{MacAddress, Url},
+    switch::PortLocation,
+};
+use k8s_openapi::api::core::v1::Namespace;
+use kube::api::ObjectMeta;
 use log::debug;
 use log::info;
 
 use crate::data::FileContent;
 use crate::executors::ExecutorError;
+use crate::hardware::PhysicalHost;
+use crate::infra::brocade::BrocadeSwitchAuth;
+use crate::infra::brocade::BrocadeSwitchClient;
+use crate::modules::okd::crd::{
+    InstallPlanApproval, OperatorGroup, OperatorGroupSpec, Subscription, SubscriptionSpec,
+    nmstate::{self, NMState, NodeNetworkConfigurationPolicy, NodeNetworkConfigurationPolicySpec},
+};
 use crate::topology::PxeOptions;
 
-use super::DHCPStaticEntry;
-use super::DhcpServer;
-use super::DnsRecord;
-use super::DnsRecordType;
-use super::DnsServer;
-use super::Firewall;
-use super::HttpServer;
-use super::IpAddress;
-use super::K8sclient;
-use super::LoadBalancer;
-use super::LoadBalancerService;
-use super::LogicalHost;
-use super::PreparationError;
-use super::PreparationOutcome;
-use super::Router;
-use super::TftpServer;
+use super::{
+    DHCPStaticEntry, DhcpServer, DnsRecord, DnsRecordType, DnsServer, Firewall, HostNetworkConfig,
+    HttpServer, IpAddress, K8sclient, LoadBalancer, LoadBalancerService, LogicalHost,
+    PreparationError, PreparationOutcome, Router, Switch, SwitchClient, SwitchError, TftpServer,
+    Topology, k8s::K8sClient,
+};
 
-use super::Topology;
-use super::k8s::K8sClient;
+use std::collections::BTreeMap;
+use std::net::IpAddr;
 use std::sync::Arc;
 
 #[derive(Debug, Clone)]
@@ -89,6 +92,231 @@ impl HAClusterTopology {
             .to_string()
     }
 
+    async fn ensure_nmstate_operator_installed(&self) -> Result<(), String> {
+        // FIXME: Find a way to check nmstate is already available (get pod -n openshift-nmstate)
+        debug!("Installing NMState operator...");
+        let k8s_client = self.k8s_client().await?;
+
+        let nmstate_namespace = Namespace {
+            metadata: ObjectMeta {
+                name: Some("openshift-nmstate".to_string()),
+                finalizers: Some(vec!["kubernetes".to_string()]),
+                ..Default::default()
+            },
+            ..Default::default()
+        };
+        debug!("Creating NMState namespace: {nmstate_namespace:#?}");
+        k8s_client
+            .apply(&nmstate_namespace, None)
+            .await
+            .map_err(|e| e.to_string())?;
+
+        let nmstate_operator_group = OperatorGroup {
+            metadata: ObjectMeta {
+                name: Some("openshift-nmstate".to_string()),
+                namespace: Some("openshift-nmstate".to_string()),
+                ..Default::default()
+            },
+            spec: OperatorGroupSpec {
+                target_namespaces: vec!["openshift-nmstate".to_string()],
+            },
+        };
+        debug!("Creating NMState operator group: {nmstate_operator_group:#?}");
+        k8s_client
+            .apply(&nmstate_operator_group, None)
+            .await
+            .map_err(|e| e.to_string())?;
+
+        let nmstate_subscription = Subscription {
+            metadata: ObjectMeta {
+                name: Some("kubernetes-nmstate-operator".to_string()),
+                namespace: Some("openshift-nmstate".to_string()),
+                ..Default::default()
+            },
+            spec: SubscriptionSpec {
+                channel: Some("stable".to_string()),
+                install_plan_approval: Some(InstallPlanApproval::Automatic),
+                name: "kubernetes-nmstate-operator".to_string(),
+                source: "redhat-operators".to_string(),
+                source_namespace: "openshift-marketplace".to_string(),
+            },
+        };
+        debug!("Subscribing to NMState Operator: {nmstate_subscription:#?}");
+        k8s_client
+            .apply(&nmstate_subscription, None)
+            .await
+            .map_err(|e| e.to_string())?;
+
+        let nmstate = NMState {
+            metadata: ObjectMeta {
+                name: Some("nmstate".to_string()),
+                ..Default::default()
+            },
+            ..Default::default()
+        };
+        debug!("Creating NMState: {nmstate:#?}");
+        k8s_client
+            .apply(&nmstate, None)
+            .await
+            .map_err(|e| e.to_string())?;
+
+        Ok(())
+    }
+
+    fn get_next_bond_id(&self) -> u8 {
+        42 // FIXME: Find a better way to declare the bond id
+    }
+
+    async fn configure_bond(
+        &self,
+        host: &PhysicalHost,
+        config: &HostNetworkConfig,
+    ) -> Result<(), SwitchError> {
+        self.ensure_nmstate_operator_installed()
+            .await
+            .map_err(|e| {
+                SwitchError::new(format!(
+                    "Can't configure bond, NMState operator not available: {e}"
+                ))
+            })?;
+
+        let bond_config = self.create_bond_configuration(host, config);
+        debug!("Configuring bond for host {host:?}: {bond_config:#?}");
+        self.k8s_client()
+            .await
+            .unwrap()
+            .apply(&bond_config, None)
+            .await
+            .unwrap();
+
+        todo!()
+    }
+
+    fn create_bond_configuration(
+        &self,
+        host: &PhysicalHost,
+        config: &HostNetworkConfig,
+    ) -> NodeNetworkConfigurationPolicy {
+        let host_name = host.id.clone();
+
+        let bond_id = self.get_next_bond_id();
+        let bond_name = format!("bond{bond_id}");
+        let mut bond_mtu: Option<u32> = None;
+        let mut bond_mac_address: Option<String> = None;
+        let mut bond_ports = Vec::new();
+        let mut interfaces: Vec<nmstate::InterfaceSpec> = Vec::new();
+
+        for switch_port in &config.switch_ports {
+            let interface_name = switch_port.interface.name.clone();
+
+            interfaces.push(nmstate::InterfaceSpec {
+                name: interface_name.clone(),
+                description: Some(format!("Member of bond {bond_name}")),
+                r#type: "ethernet".to_string(),
+                state: "up".to_string(),
+                mtu: Some(switch_port.interface.mtu),
+                mac_address: Some(switch_port.interface.mac_address.to_string()),
+                ipv4: Some(nmstate::IpStackSpec {
+                    enabled: Some(false),
+                    ..Default::default()
+                }),
+                ipv6: Some(nmstate::IpStackSpec {
+                    enabled: Some(false),
+                    ..Default::default()
+                }),
+                link_aggregation: None,
+                ..Default::default()
+            });
+
+            bond_ports.push(interface_name);
+
+            // Use the first port's details for the bond mtu and mac address
+            if bond_mtu.is_none() {
+                bond_mtu = Some(switch_port.interface.mtu);
+            }
+            if bond_mac_address.is_none() {
+                bond_mac_address = Some(switch_port.interface.mac_address.to_string());
+            }
+        }
+
+        interfaces.push(nmstate::InterfaceSpec {
+            name: bond_name.clone(),
+            description: Some(format!("Network bond for host {host_name}")),
+            r#type: "bond".to_string(),
+            state: "up".to_string(),
+            mtu: bond_mtu,
+            mac_address: bond_mac_address,
+            ipv4: Some(nmstate::IpStackSpec {
+                dhcp: Some(true),
+                enabled: Some(true),
+                ..Default::default()
+            }),
+            ipv6: Some(nmstate::IpStackSpec {
+                dhcp: Some(true),
+                autoconf: Some(true),
+                enabled: Some(true),
+                ..Default::default()
+            }),
+            link_aggregation: Some(nmstate::BondSpec {
+                mode: "802.3ad".to_string(),
+                ports: bond_ports,
+                ..Default::default()
+            }),
+            ..Default::default()
+        });
+
+        NodeNetworkConfigurationPolicy {
+            metadata: ObjectMeta {
+                name: Some(format!("{host_name}-bond-config")),
+                ..Default::default()
+            },
+            spec: NodeNetworkConfigurationPolicySpec {
+                node_selector: Some(BTreeMap::from([(
+                    "kubernetes.io/hostname".to_string(),
+                    host_name.to_string(),
+                )])),
+                desired_state: nmstate::DesiredStateSpec { interfaces },
+            },
+        }
+    }
+
+    async fn get_switch_client(&self) -> Result<Box<dyn SwitchClient>, SwitchError> {
+        let auth = SecretManager::get_or_prompt::<BrocadeSwitchAuth>()
+            .await
+            .map_err(|e| SwitchError::new(format!("Failed to get credentials: {e}")))?;
+
+        // FIXME: We assume Brocade switches
+        let switches: Vec<IpAddr> = self.switch.iter().map(|s| s.ip).collect();
+        let brocade_options = Some(BrocadeOptions {
+            dry_run: *crate::config::DRY_RUN,
+            ..Default::default()
+        });
+        let client =
+            BrocadeSwitchClient::init(&switches, &auth.username, &auth.password, brocade_options)
+                .await
+                .map_err(|e| SwitchError::new(format!("Failed to connect to switch: {e}")))?;
+
+        Ok(Box::new(client))
+    }
+
+    async fn configure_port_channel(
+        &self,
+        host: &PhysicalHost,
+        config: &HostNetworkConfig,
+    ) -> Result<(), SwitchError> {
+        debug!("Configuring port channel: {config:#?}");
+        let client = self.get_switch_client().await?;
+
+        let switch_ports = config.switch_ports.iter().map(|s| s.port.clone()).collect();
+
+        client
+            .configure_port_channel(&format!("Harmony_{}", host.id), switch_ports)
+            .await
+            .map_err(|e| SwitchError::new(format!("Failed to configure switch: {e}")))?;
+
+        Ok(())
+    }
+
     pub fn autoload() -> Self {
         let dummy_infra = Arc::new(DummyInfra {});
         let dummy_host = LogicalHost {
@@ -263,6 +491,33 @@ impl HttpServer for HAClusterTopology {
     }
 }
 
+#[async_trait]
+impl Switch for HAClusterTopology {
+    async fn setup_switch(&self) -> Result<(), SwitchError> {
+        let client = self.get_switch_client().await?;
+        client.setup().await?;
+        Ok(())
+    }
+
+    async fn get_port_for_mac_address(
+        &self,
+        mac_address: &MacAddress,
+    ) -> Result<Option<PortLocation>, SwitchError> {
+        let client = self.get_switch_client().await?;
+        let port = client.find_port(mac_address).await?;
+        Ok(port)
+    }
+
+    async fn configure_host_network(
+        &self,
+        host: &PhysicalHost,
+        config: HostNetworkConfig,
+    ) -> Result<(), SwitchError> {
+        self.configure_bond(host, &config).await?;
+        self.configure_port_channel(host, &config).await
+    }
+}
+
 #[derive(Debug)]
 pub struct DummyInfra;
 
@@ -332,8 +587,8 @@ impl DhcpServer for DummyInfra {
     }
     async fn set_dhcp_range(
         &self,
-        start: &IpAddress,
-        end: &IpAddress,
+        _start: &IpAddress,
+        _end: &IpAddress,
     ) -> Result<(), ExecutorError> {
         unimplemented!("{}", UNIMPLEMENTED_DUMMY_INFRA)
     }

harmony/src/domain/topology/load_balancer.rs

@@ -28,13 +28,7 @@ pub trait LoadBalancer: Send + Sync {
         &self,
         service: &LoadBalancerService,
     ) -> Result<(), ExecutorError> {
-        debug!(
-            "Listing LoadBalancer services {:?}",
-            self.list_services().await
-        );
-        if !self.list_services().await.contains(service) {
-            self.add_service(service).await?;
-        }
+        self.add_service(service).await?;
         Ok(())
     }
 }

harmony/src/domain/topology/network.rs

@@ -1,10 +1,14 @@
-use std::{net::Ipv4Addr, str::FromStr, sync::Arc};
+use std::{error::Error, net::Ipv4Addr, str::FromStr, sync::Arc};
 
 use async_trait::async_trait;
-use harmony_types::net::{IpAddress, MacAddress};
+use derive_new::new;
+use harmony_types::{
+    net::{IpAddress, MacAddress},
+    switch::PortLocation,
+};
 use serde::Serialize;
 
-use crate::executors::ExecutorError;
+use crate::{executors::ExecutorError, hardware::PhysicalHost};
 
 use super::{LogicalHost, k8s::K8sClient};
 
@@ -172,6 +176,80 @@ impl FromStr for DnsRecordType {
     }
 }
 
+#[async_trait]
+pub trait Switch: Send + Sync {
+    async fn setup_switch(&self) -> Result<(), SwitchError>;
+
+    async fn get_port_for_mac_address(
+        &self,
+        mac_address: &MacAddress,
+    ) -> Result<Option<PortLocation>, SwitchError>;
+
+    async fn configure_host_network(
+        &self,
+        host: &PhysicalHost,
+        config: HostNetworkConfig,
+    ) -> Result<(), SwitchError>;
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct HostNetworkConfig {
+    pub switch_ports: Vec<SwitchPort>,
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct SwitchPort {
+    pub interface: NetworkInterface,
+    pub port: PortLocation,
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct NetworkInterface {
+    pub name: String,
+    pub mac_address: MacAddress,
+    pub speed_mbps: Option<u32>,
+    pub mtu: u32,
+}
+
+#[derive(Debug, Clone, new)]
+pub struct SwitchError {
+    msg: String,
+}
+
+impl std::fmt::Display for SwitchError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str(&self.msg)
+    }
+}
+
+impl Error for SwitchError {}
+
+#[async_trait]
+pub trait SwitchClient: Send + Sync {
+    /// Executes essential, idempotent, one-time initial configuration steps.
+    ///
+    /// This is an opiniated procedure that setups a switch to provide high availability
+    /// capabilities as decided by the NationTech team.
+    ///
+    /// This includes tasks like enabling switchport for all interfaces
+    /// except the ones intended for Fabric Networking, etc.
+    ///
+    /// The implementation must ensure the operation is **idempotent** (safe to run multiple times)
+    /// and that it doesn't break existing configurations.
+    async fn setup(&self) -> Result<(), SwitchError>;
+
+    async fn find_port(
+        &self,
+        mac_address: &MacAddress,
+    ) -> Result<Option<PortLocation>, SwitchError>;
+
+    async fn configure_port_channel(
+        &self,
+        channel_name: &str,
+        switch_ports: Vec<PortLocation>,
+    ) -> Result<u8, SwitchError>;
+}
+
 #[cfg(test)]
 mod test {
     use std::sync::Arc;

harmony/src/infra/brocade.rs

@@ -0,0 +1,385 @@
+use async_trait::async_trait;
+use brocade::{BrocadeClient, BrocadeOptions, InterSwitchLink, InterfaceStatus, PortOperatingMode};
+use harmony_secret::Secret;
+use harmony_types::{
+    net::{IpAddress, MacAddress},
+    switch::{PortDeclaration, PortLocation},
+};
+use option_ext::OptionExt;
+use serde::{Deserialize, Serialize};
+
+use crate::topology::{SwitchClient, SwitchError};
+
+pub struct BrocadeSwitchClient {
+    brocade: Box<dyn BrocadeClient + Send + Sync>,
+}
+
+impl BrocadeSwitchClient {
+    pub async fn init(
+        ip_addresses: &[IpAddress],
+        username: &str,
+        password: &str,
+        options: Option<BrocadeOptions>,
+    ) -> Result<Self, brocade::Error> {
+        let brocade = brocade::init(ip_addresses, 22, username, password, options).await?;
+        Ok(Self { brocade })
+    }
+}
+
+#[async_trait]
+impl SwitchClient for BrocadeSwitchClient {
+    async fn setup(&self) -> Result<(), SwitchError> {
+        let stack_topology = self
+            .brocade
+            .get_stack_topology()
+            .await
+            .map_err(|e| SwitchError::new(e.to_string()))?;
+
+        let interfaces = self
+            .brocade
+            .get_interfaces()
+            .await
+            .map_err(|e| SwitchError::new(e.to_string()))?;
+
+        let interfaces: Vec<(String, PortOperatingMode)> = interfaces
+            .into_iter()
+            .filter(|interface| {
+                interface.operating_mode.is_none() && interface.status == InterfaceStatus::Connected
+            })
+            .filter(|interface| {
+                !stack_topology.iter().any(|link: &InterSwitchLink| {
+                    link.local_port == interface.port_location
+                        || link.remote_port.contains(&interface.port_location)
+                })
+            })
+            .map(|interface| (interface.name.clone(), PortOperatingMode::Access))
+            .collect();
+
+        if interfaces.is_empty() {
+            return Ok(());
+        }
+
+        self.brocade
+            .configure_interfaces(interfaces)
+            .await
+            .map_err(|e| SwitchError::new(e.to_string()))?;
+
+        Ok(())
+    }
+
+    async fn find_port(
+        &self,
+        mac_address: &MacAddress,
+    ) -> Result<Option<PortLocation>, SwitchError> {
+        let table = self
+            .brocade
+            .get_mac_address_table()
+            .await
+            .map_err(|e| SwitchError::new(format!("{e}")))?;
+
+        let port = table
+            .iter()
+            .find(|entry| entry.mac_address == *mac_address)
+            .map(|entry| match &entry.port {
+                PortDeclaration::Single(port_location) => Ok(port_location.clone()),
+                _ => Err(SwitchError::new(
+                    "Multiple ports found for MAC address".into(),
+                )),
+            });
+
+        match port {
+            Some(Ok(p)) => Ok(Some(p)),
+            Some(Err(e)) => Err(e),
+            None => Ok(None),
+        }
+    }
+
+    async fn configure_port_channel(
+        &self,
+        channel_name: &str,
+        switch_ports: Vec<PortLocation>,
+    ) -> Result<u8, SwitchError> {
+        let channel_id = self
+            .brocade
+            .find_available_channel_id()
+            .await
+            .map_err(|e| SwitchError::new(format!("{e}")))?;
+
+        self.brocade
+            .create_port_channel(channel_id, channel_name, &switch_ports)
+            .await
+            .map_err(|e| SwitchError::new(format!("{e}")))?;
+
+        Ok(channel_id)
+    }
+}
+
+#[derive(Secret, Serialize, Deserialize, Debug)]
+pub struct BrocadeSwitchAuth {
+    pub username: String,
+    pub password: String,
+}
+
+#[cfg(test)]
+mod tests {
+    use std::sync::{Arc, Mutex};
+
+    use assertor::*;
+    use async_trait::async_trait;
+    use brocade::{
+        BrocadeClient, BrocadeInfo, Error, InterSwitchLink, InterfaceInfo, InterfaceStatus,
+        InterfaceType, MacAddressEntry, PortChannelId, PortOperatingMode,
+    };
+    use harmony_types::switch::PortLocation;
+
+    use crate::{infra::brocade::BrocadeSwitchClient, topology::SwitchClient};
+
+    #[tokio::test]
+    async fn setup_should_configure_ethernet_interfaces_as_access_ports() {
+        let first_interface = given_interface()
+            .with_port_location(PortLocation(1, 0, 1))
+            .build();
+        let second_interface = given_interface()
+            .with_port_location(PortLocation(1, 0, 4))
+            .build();
+        let brocade = Box::new(FakeBrocadeClient::new(
+            vec![],
+            vec![first_interface.clone(), second_interface.clone()],
+        ));
+        let client = BrocadeSwitchClient {
+            brocade: brocade.clone(),
+        };
+
+        client.setup().await.unwrap();
+
+        let configured_interfaces = brocade.configured_interfaces.lock().unwrap();
+        assert_that!(*configured_interfaces).contains_exactly(vec![
+            (first_interface.name.clone(), PortOperatingMode::Access),
+            (second_interface.name.clone(), PortOperatingMode::Access),
+        ]);
+    }
+
+    #[tokio::test]
+    async fn setup_with_an_already_configured_interface_should_skip_configuration() {
+        let brocade = Box::new(FakeBrocadeClient::new(
+            vec![],
+            vec![
+                given_interface()
+                    .with_operating_mode(Some(PortOperatingMode::Access))
+                    .build(),
+            ],
+        ));
+        let client = BrocadeSwitchClient {
+            brocade: brocade.clone(),
+        };
+
+        client.setup().await.unwrap();
+
+        let configured_interfaces = brocade.configured_interfaces.lock().unwrap();
+        assert_that!(*configured_interfaces).is_empty();
+    }
+
+    #[tokio::test]
+    async fn setup_with_a_disconnected_interface_should_skip_configuration() {
+        let brocade = Box::new(FakeBrocadeClient::new(
+            vec![],
+            vec![
+                given_interface()
+                    .with_status(InterfaceStatus::SfpAbsent)
+                    .build(),
+                given_interface()
+                    .with_status(InterfaceStatus::NotConnected)
+                    .build(),
+            ],
+        ));
+        let client = BrocadeSwitchClient {
+            brocade: brocade.clone(),
+        };
+
+        client.setup().await.unwrap();
+
+        let configured_interfaces = brocade.configured_interfaces.lock().unwrap();
+        assert_that!(*configured_interfaces).is_empty();
+    }
+
+    #[tokio::test]
+    async fn setup_with_inter_switch_links_should_not_configure_interfaces_used_to_form_stack() {
+        let brocade = Box::new(FakeBrocadeClient::new(
+            vec![
+                given_inter_switch_link()
+                    .between(PortLocation(1, 0, 1), PortLocation(2, 0, 1))
+                    .build(),
+                given_inter_switch_link()
+                    .between(PortLocation(2, 0, 2), PortLocation(3, 0, 1))
+                    .build(),
+            ],
+            vec![
+                given_interface()
+                    .with_port_location(PortLocation(1, 0, 1))
+                    .build(),
+                given_interface()
+                    .with_port_location(PortLocation(2, 0, 1))
+                    .build(),
+                given_interface()
+                    .with_port_location(PortLocation(3, 0, 1))
+                    .build(),
+            ],
+        ));
+        let client = BrocadeSwitchClient {
+            brocade: brocade.clone(),
+        };
+
+        client.setup().await.unwrap();
+
+        let configured_interfaces = brocade.configured_interfaces.lock().unwrap();
+        assert_that!(*configured_interfaces).is_empty();
+    }
+
+    #[derive(Clone)]
+    struct FakeBrocadeClient {
+        stack_topology: Vec<InterSwitchLink>,
+        interfaces: Vec<InterfaceInfo>,
+        configured_interfaces: Arc<Mutex<Vec<(String, PortOperatingMode)>>>,
+    }
+
+    #[async_trait]
+    impl BrocadeClient for FakeBrocadeClient {
+        async fn version(&self) -> Result<BrocadeInfo, Error> {
+            todo!()
+        }
+
+        async fn get_mac_address_table(&self) -> Result<Vec<MacAddressEntry>, Error> {
+            todo!()
+        }
+
+        async fn get_stack_topology(&self) -> Result<Vec<InterSwitchLink>, Error> {
+            Ok(self.stack_topology.clone())
+        }
+
+        async fn get_interfaces(&self) -> Result<Vec<InterfaceInfo>, Error> {
+            Ok(self.interfaces.clone())
+        }
+
+        async fn configure_interfaces(
+            &self,
+            interfaces: Vec<(String, PortOperatingMode)>,
+        ) -> Result<(), Error> {
+            let mut configured_interfaces = self.configured_interfaces.lock().unwrap();
+            *configured_interfaces = interfaces;
+
+            Ok(())
+        }
+
+        async fn find_available_channel_id(&self) -> Result<PortChannelId, Error> {
+            todo!()
+        }
+
+        async fn create_port_channel(
+            &self,
+            _channel_id: PortChannelId,
+            _channel_name: &str,
+            _ports: &[PortLocation],
+        ) -> Result<(), Error> {
+            todo!()
+        }
+
+        async fn clear_port_channel(&self, _channel_name: &str) -> Result<(), Error> {
+            todo!()
+        }
+    }
+
+    impl FakeBrocadeClient {
+        fn new(stack_topology: Vec<InterSwitchLink>, interfaces: Vec<InterfaceInfo>) -> Self {
+            Self {
+                stack_topology,
+                interfaces,
+                configured_interfaces: Arc::new(Mutex::new(vec![])),
+            }
+        }
+    }
+
+    struct InterfaceInfoBuilder {
+        port_location: Option<PortLocation>,
+        interface_type: Option<InterfaceType>,
+        operating_mode: Option<PortOperatingMode>,
+        status: Option<InterfaceStatus>,
+    }
+
+    impl InterfaceInfoBuilder {
+        fn build(&self) -> InterfaceInfo {
+            let interface_type = self
+                .interface_type
+                .clone()
+                .unwrap_or(InterfaceType::Ethernet("TenGigabitEthernet".into()));
+            let port_location = self.port_location.clone().unwrap_or(PortLocation(1, 0, 1));
+            let name = format!("{interface_type} {port_location}");
+            let status = self.status.clone().unwrap_or(InterfaceStatus::Connected);
+
+            InterfaceInfo {
+                name,
+                port_location,
+                interface_type,
+                operating_mode: self.operating_mode.clone(),
+                status,
+            }
+        }
+
+        fn with_port_location(self, port_location: PortLocation) -> Self {
+            Self {
+                port_location: Some(port_location),
+                ..self
+            }
+        }
+
+        fn with_operating_mode(self, operating_mode: Option<PortOperatingMode>) -> Self {
+            Self {
+                operating_mode,
+                ..self
+            }
+        }
+
+        fn with_status(self, status: InterfaceStatus) -> Self {
+            Self {
+                status: Some(status),
+                ..self
+            }
+        }
+    }
+
+    struct InterSwitchLinkBuilder {
+        link: Option<(PortLocation, PortLocation)>,
+    }
+
+    impl InterSwitchLinkBuilder {
+        fn build(&self) -> InterSwitchLink {
+            let link = self
+                .link
+                .clone()
+                .unwrap_or((PortLocation(1, 0, 1), PortLocation(2, 0, 1)));
+
+            InterSwitchLink {
+                local_port: link.0,
+                remote_port: Some(link.1),
+            }
+        }
+
+        fn between(self, local_port: PortLocation, remote_port: PortLocation) -> Self {
+            Self {
+                link: Some((local_port, remote_port)),
+            }
+        }
+    }
+
+    fn given_interface() -> InterfaceInfoBuilder {
+        InterfaceInfoBuilder {
+            port_location: None,
+            interface_type: None,
+            operating_mode: None,
+            status: None,
+        }
+    }
+
+    fn given_inter_switch_link() -> InterSwitchLinkBuilder {
+        InterSwitchLinkBuilder { link: None }
+    }
+}

harmony/src/infra/mod.rs

@@ -1,3 +1,4 @@
+pub mod brocade;
 pub mod executors;
 pub mod hp_ilo;
 pub mod intel_amt;

harmony/src/infra/opnsense/load_balancer.rs

@@ -26,19 +26,13 @@ impl LoadBalancer for OPNSenseFirewall {
     }
 
     async fn add_service(&self, service: &LoadBalancerService) -> Result<(), ExecutorError> {
-        warn!(
-            "TODO : the current implementation does not check / cleanup / merge with existing haproxy services properly. Make sure to manually verify that the configuration is correct after executing any operation here"
-        );
         let mut config = self.opnsense_config.write().await;
+        let mut load_balancer = config.load_balancer();
+
         let (frontend, backend, servers, healthcheck) =
             harmony_load_balancer_service_to_haproxy_xml(service);
-        let mut load_balancer = config.load_balancer();
-        load_balancer.add_backend(backend);
-        load_balancer.add_frontend(frontend);
-        load_balancer.add_servers(servers);
-        if let Some(healthcheck) = healthcheck {
-            load_balancer.add_healthcheck(healthcheck);
-        }
+
+        load_balancer.configure_service(frontend, backend, servers, healthcheck);
 
         Ok(())
     }
@@ -106,7 +100,7 @@ pub(crate) fn haproxy_xml_config_to_harmony_loadbalancer(
                 .backends
                 .backends
                 .iter()
-                .find(|b| b.uuid == frontend.default_backend);
+                .find(|b| Some(b.uuid.clone()) == frontend.default_backend);
 
             let mut health_check = None;
             match matching_backend {
@@ -116,8 +110,7 @@ pub(crate) fn haproxy_xml_config_to_harmony_loadbalancer(
                 }
                 None => {
                     warn!(
-                        "HAProxy config could not find a matching backend for frontend {:?}",
-                        frontend
+                        "HAProxy config could not find a matching backend for frontend {frontend:?}"
                     );
                 }
             }
@@ -152,11 +145,11 @@ pub(crate) fn get_servers_for_backend(
         .servers
         .iter()
         .filter_map(|server| {
+            let address = server.address.clone()?;
+            let port = server.port?;
+
             if backend_servers.contains(&server.uuid.as_str()) {
-                return Some(BackendServer {
-                    address: server.address.clone(),
-                    port: server.port,
-                });
+                return Some(BackendServer { address, port });
             }
             None
         })
@@ -347,7 +340,7 @@ pub(crate) fn harmony_load_balancer_service_to_haproxy_xml(
         name: format!("frontend_{}", service.listening_port),
         bind: service.listening_port.to_string(),
         mode: "tcp".to_string(), // TODO do not depend on health check here
-        default_backend: backend.uuid.clone(),
+        default_backend: Some(backend.uuid.clone()),
         ..Default::default()
     };
     info!("HAPRoxy frontend and backend mode currently hardcoded to tcp");
@@ -361,8 +354,8 @@ fn server_to_haproxy_server(server: &BackendServer) -> HAProxyServer {
         uuid: Uuid::new_v4().to_string(),
         name: format!("{}_{}", &server.address, &server.port),
         enabled: 1,
-        address: server.address.clone(),
-        port: server.port,
+        address: Some(server.address.clone()),
+        port: Some(server.port),
         mode: "active".to_string(),
         server_type: "static".to_string(),
         ..Default::default()
@@ -385,8 +378,8 @@ mod tests {
         let mut haproxy = HAProxy::default();
         let server = HAProxyServer {
             uuid: "server1".to_string(),
-            address: "192.168.1.1".to_string(),
-            port: 80,
+            address: Some("192.168.1.1".to_string()),
+            port: Some(80),
             ..Default::default()
         };
         haproxy.servers.servers.push(server);
@@ -411,8 +404,8 @@ mod tests {
         let mut haproxy = HAProxy::default();
         let server = HAProxyServer {
             uuid: "server1".to_string(),
-            address: "192.168.1.1".to_string(),
-            port: 80,
+            address: Some("192.168.1.1".to_string()),
+            port: Some(80),
             ..Default::default()
         };
         haproxy.servers.servers.push(server);
@@ -431,8 +424,8 @@ mod tests {
         let mut haproxy = HAProxy::default();
         let server = HAProxyServer {
             uuid: "server1".to_string(),
-            address: "192.168.1.1".to_string(),
-            port: 80,
+            address: Some("192.168.1.1".to_string()),
+            port: Some(80),
             ..Default::default()
         };
         haproxy.servers.servers.push(server);
@@ -453,16 +446,16 @@ mod tests {
         let mut haproxy = HAProxy::default();
         let server = HAProxyServer {
             uuid: "server1".to_string(),
-            address: "some-hostname.test.mcd".to_string(),
-            port: 80,
+            address: Some("some-hostname.test.mcd".to_string()),
+            port: Some(80),
             ..Default::default()
         };
         haproxy.servers.servers.push(server);
 
         let server = HAProxyServer {
             uuid: "server2".to_string(),
-            address: "192.168.1.2".to_string(),
-            port: 8080,
+            address: Some("192.168.1.2".to_string()),
+            port: Some(8080),
             ..Default::default()
         };
         haproxy.servers.servers.push(server);

harmony/src/modules/application/features/helm_argocd_score.rs

@@ -1,4 +1,5 @@
 use async_trait::async_trait;
+use harmony_macros::hurl;
 use kube::{Api, api::GroupVersionKind};
 use log::{debug, warn};
 use non_blank_string_rs::NonBlankString;
@@ -1051,7 +1052,7 @@ commitServer:
         install_only: false,
         repository: Some(HelmRepository::new(
             "argo".to_string(),
-            url::Url::parse("https://argoproj.github.io/argo-helm").unwrap(),
+            hurl!("https://argoproj.github.io/argo-helm"),
             true,
         )),
     }

harmony/src/modules/cert_manager/helm.rs

@@ -1,5 +1,6 @@
 use std::{collections::HashMap, str::FromStr};
 
+use harmony_macros::hurl;
 use non_blank_string_rs::NonBlankString;
 use serde::Serialize;
 use url::Url;
@@ -33,7 +34,7 @@ impl<T: Topology + HelmCommand> Score<T> for CertManagerHelmScore {
             install_only: true,
             repository: Some(HelmRepository::new(
                 "jetstack".to_string(),
-                Url::parse("https://charts.jetstack.io").unwrap(),
+                hurl!("https://charts.jetstack.io"),
                 true,
             )),
         }

harmony/src/modules/helm/chart.rs

@@ -5,6 +5,7 @@ use crate::score::Score;
 use crate::topology::{HelmCommand, Topology};
 use async_trait::async_trait;
 use harmony_types::id::Id;
+use harmony_types::net::Url;
 use helm_wrapper_rs;
 use helm_wrapper_rs::blocking::{DefaultHelmExecutor, HelmExecutor};
 use log::{debug, info, warn};
@@ -15,7 +16,6 @@ use std::path::Path;
 use std::process::{Command, Output, Stdio};
 use std::str::FromStr;
 use temp_file::TempFile;
-use url::Url;
 
 #[derive(Debug, Clone, Serialize)]
 pub struct HelmRepository {
@@ -78,7 +78,8 @@ impl HelmChartInterpret {
             repo.name, repo.url, repo.force_update
         );
 
-        let mut add_args = vec!["repo", "add", &repo.name, repo.url.as_str()];
+        let repo_url = repo.url.to_string();
+        let mut add_args = vec!["repo", "add", &repo.name, &repo_url];
         if repo.force_update {
             add_args.push("--force-update");
         }

harmony/src/modules/helm/command.rs

@@ -1,364 +0,0 @@
-use async_trait::async_trait;
-use log::debug;
-use serde::Serialize;
-use std::collections::HashMap;
-use std::io::ErrorKind;
-use std::path::PathBuf;
-use std::process::{Command, Output};
-use temp_dir::{self, TempDir};
-use temp_file::TempFile;
-
-use crate::data::Version;
-use crate::interpret::{Interpret, InterpretError, InterpretName, InterpretStatus, Outcome};
-use crate::inventory::Inventory;
-use crate::score::Score;
-use crate::topology::{HelmCommand, K8sclient, Topology};
-use harmony_types::id::Id;
-
-#[derive(Clone)]
-pub struct HelmCommandExecutor {
-    pub env: HashMap<String, String>,
-    pub path: Option<PathBuf>,
-    pub args: Vec<String>,
-    pub api_versions: Option<Vec<String>>,
-    pub kube_version: String,
-    pub debug: Option<bool>,
-    pub globals: HelmGlobals,
-    pub chart: HelmChart,
-}
-
-#[derive(Clone)]
-pub struct HelmGlobals {
-    pub chart_home: Option<PathBuf>,
-    pub config_home: Option<PathBuf>,
-}
-
-#[derive(Debug, Clone, Serialize)]
-pub struct HelmChart {
-    pub name: String,
-    pub version: Option<String>,
-    pub repo: Option<String>,
-    pub release_name: Option<String>,
-    pub namespace: Option<String>,
-    pub additional_values_files: Vec<PathBuf>,
-    pub values_file: Option<PathBuf>,
-    pub values_inline: Option<String>,
-    pub include_crds: Option<bool>,
-    pub skip_hooks: Option<bool>,
-    pub api_versions: Option<Vec<String>>,
-    pub kube_version: Option<String>,
-    pub name_template: String,
-    pub skip_tests: Option<bool>,
-    pub debug: Option<bool>,
-}
-
-impl HelmCommandExecutor {
-    pub fn generate(mut self) -> Result<String, std::io::Error> {
-        if self.globals.chart_home.is_none() {
-            self.globals.chart_home = Some(PathBuf::from("charts"));
-        }
-
-        if self
-            .clone()
-            .chart
-            .clone()
-            .chart_exists_locally(self.clone().globals.chart_home.unwrap())
-            .is_none()
-        {
-            if self.chart.repo.is_none() {
-                return Err(std::io::Error::new(
-                    ErrorKind::Other,
-                    "Chart doesn't exist locally and no repo specified",
-                ));
-            }
-            self.clone().run_command(
-                self.chart
-                    .clone()
-                    .pull_command(self.globals.chart_home.clone().unwrap()),
-            )?;
-        }
-
-        let out = self.clone().run_command(
-            self.chart
-                .clone()
-                .helm_args(self.globals.chart_home.clone().unwrap()),
-        )?;
-
-        // TODO: don't use unwrap here
-        let s = String::from_utf8(out.stdout).unwrap();
-        debug!("helm stderr: {}", String::from_utf8(out.stderr).unwrap());
-        debug!("helm status: {}", out.status);
-        debug!("helm output: {s}");
-
-        let clean = s.split_once("---").unwrap().1;
-
-        Ok(clean.to_string())
-    }
-
-    pub fn version(self) -> Result<String, std::io::Error> {
-        let out = self.run_command(vec![
-            "version".to_string(),
-            "-c".to_string(),
-            "--short".to_string(),
-        ])?;
-
-        // TODO: don't use unwrap
-        Ok(String::from_utf8(out.stdout).unwrap())
-    }
-
-    pub fn run_command(mut self, mut args: Vec<String>) -> Result<Output, std::io::Error> {
-        if let Some(d) = self.debug {
-            if d {
-                args.push("--debug".to_string());
-            }
-        }
-
-        let path = if let Some(p) = self.path {
-            p
-        } else {
-            PathBuf::from("helm")
-        };
-
-        let config_home = match self.globals.config_home {
-            Some(p) => p,
-            None => PathBuf::from(TempDir::new()?.path()),
-        };
-
-        if let Some(yaml_str) = self.chart.values_inline {
-            let tf: TempFile = temp_file::with_contents(yaml_str.as_bytes());
-            self.chart
-                .additional_values_files
-                .push(PathBuf::from(tf.path()));
-        };
-
-        self.env.insert(
-            "HELM_CONFIG_HOME".to_string(),
-            config_home.to_str().unwrap().to_string(),
-        );
-        self.env.insert(
-            "HELM_CACHE_HOME".to_string(),
-            config_home.to_str().unwrap().to_string(),
-        );
-        self.env.insert(
-            "HELM_DATA_HOME".to_string(),
-            config_home.to_str().unwrap().to_string(),
-        );
-
-        Command::new(path).envs(self.env).args(args).output()
-    }
-}
-
-impl HelmChart {
-    pub fn chart_exists_locally(self, chart_home: PathBuf) -> Option<PathBuf> {
-        let chart_path =
-            PathBuf::from(chart_home.to_str().unwrap().to_string() + "/" + &self.name.to_string());
-
-        if chart_path.exists() {
-            Some(chart_path)
-        } else {
-            None
-        }
-    }
-
-    pub fn pull_command(self, chart_home: PathBuf) -> Vec<String> {
-        let mut args = vec![
-            "pull".to_string(),
-            "--untar".to_string(),
-            "--untardir".to_string(),
-            chart_home.to_str().unwrap().to_string(),
-        ];
-
-        match self.repo {
-            Some(r) => {
-                if r.starts_with("oci://") {
-                    args.push(
-                        r.trim_end_matches("/").to_string() + "/" + self.name.clone().as_str(),
-                    );
-                } else {
-                    args.push("--repo".to_string());
-                    args.push(r.to_string());
-
-                    args.push(self.name);
-                }
-            }
-            None => args.push(self.name),
-        };
-
-        if let Some(v) = self.version {
-            args.push("--version".to_string());
-            args.push(v.to_string());
-        }
-
-        args
-    }
-
-    pub fn helm_args(self, chart_home: PathBuf) -> Vec<String> {
-        let mut args: Vec<String> = vec!["template".to_string()];
-
-        match self.release_name {
-            Some(rn) => args.push(rn.to_string()),
-            None => args.push("--generate-name".to_string()),
-        }
-
-        args.push(
-            PathBuf::from(chart_home.to_str().unwrap().to_string() + "/" + self.name.as_str())
-                .to_str()
-                .unwrap()
-                .to_string(),
-        );
-
-        if let Some(n) = self.namespace {
-            args.push("--namespace".to_string());
-            args.push(n.to_string());
-        }
-
-        if let Some(f) = self.values_file {
-            args.push("-f".to_string());
-            args.push(f.to_str().unwrap().to_string());
-        }
-
-        for f in self.additional_values_files {
-            args.push("-f".to_string());
-            args.push(f.to_str().unwrap().to_string());
-        }
-
-        if let Some(vv) = self.api_versions {
-            for v in vv {
-                args.push("--api-versions".to_string());
-                args.push(v);
-            }
-        }
-
-        if let Some(kv) = self.kube_version {
-            args.push("--kube-version".to_string());
-            args.push(kv);
-        }
-
-        if let Some(crd) = self.include_crds {
-            if crd {
-                args.push("--include-crds".to_string());
-            }
-        }
-
-        if let Some(st) = self.skip_tests {
-            if st {
-                args.push("--skip-tests".to_string());
-            }
-        }
-
-        if let Some(sh) = self.skip_hooks {
-            if sh {
-                args.push("--no-hooks".to_string());
-            }
-        }
-
-        if let Some(d) = self.debug {
-            if d {
-                args.push("--debug".to_string());
-            }
-        }
-
-        args
-    }
-}
-
-#[derive(Debug, Clone, Serialize)]
-pub struct HelmChartScoreV2 {
-    pub chart: HelmChart,
-}
-
-impl<T: Topology + K8sclient + HelmCommand> Score<T> for HelmChartScoreV2 {
-    fn create_interpret(&self) -> Box<dyn Interpret<T>> {
-        Box::new(HelmChartInterpretV2 {
-            score: self.clone(),
-        })
-    }
-
-    fn name(&self) -> String {
-        format!(
-            "{} {} HelmChartScoreV2",
-            self.chart
-                .release_name
-                .clone()
-                .unwrap_or("Unknown".to_string()),
-            self.chart.name
-        )
-    }
-}
-
-#[derive(Debug, Serialize)]
-pub struct HelmChartInterpretV2 {
-    pub score: HelmChartScoreV2,
-}
-impl HelmChartInterpretV2 {}
-
-#[async_trait]
-impl<T: Topology + K8sclient + HelmCommand> Interpret<T> for HelmChartInterpretV2 {
-    async fn execute(
-        &self,
-        _inventory: &Inventory,
-        _topology: &T,
-    ) -> Result<Outcome, InterpretError> {
-        let _ns = self
-            .score
-            .chart
-            .namespace
-            .as_ref()
-            .unwrap_or_else(|| todo!("Get namespace from active kubernetes cluster"));
-
-        let helm_executor = HelmCommandExecutor {
-            env: HashMap::new(),
-            path: None,
-            args: vec![],
-            api_versions: None,
-            kube_version: "v1.33.0".to_string(),
-            debug: Some(false),
-            globals: HelmGlobals {
-                chart_home: None,
-                config_home: None,
-            },
-            chart: self.score.chart.clone(),
-        };
-
-        // let mut helm_options = Vec::new();
-        // if self.score.create_namespace {
-        //     helm_options.push(NonBlankString::from_str("--create-namespace").unwrap());
-        // }
-
-        let res = helm_executor.generate();
-
-        let _output = match res {
-            Ok(output) => output,
-            Err(err) => return Err(InterpretError::new(err.to_string())),
-        };
-
-        // TODO: implement actually applying the YAML from the templating in the generate function to a k8s cluster, having trouble passing in straight YAML into the k8s client
-
-        // let k8s_resource = k8s_openapi::serde_json::from_str(output.as_str()).unwrap();
-
-        // let client = topology
-        //     .k8s_client()
-        //     .await
-        //     .expect("Environment should provide enough information to instanciate a client")
-        //     .apply_namespaced(&vec![output], Some(ns.to_string().as_str()));
-        // match client.apply_yaml(output) {
-        //     Ok(_) => return Ok(Outcome::success("Helm chart deployed".to_string())),
-        //     Err(e) => return Err(InterpretError::new(e)),
-        // }
-
-        Ok(Outcome::success("Helm chart deployed".to_string()))
-    }
-
-    fn get_name(&self) -> InterpretName {
-        InterpretName::HelmCommand
-    }
-    fn get_version(&self) -> Version {
-        todo!()
-    }
-    fn get_status(&self) -> InterpretStatus {
-        todo!()
-    }
-    fn get_children(&self) -> Vec<Id> {
-        todo!()
-    }
-}

harmony/src/modules/helm/mod.rs

@@ -1,2 +1 @@
 pub mod chart;
-pub mod command;

harmony/src/modules/okd/bootstrap_03_control_plane.rs

@@ -5,8 +5,10 @@ use crate::{
     interpret::{Interpret, InterpretError, InterpretName, InterpretStatus, Outcome},
     inventory::{HostRole, Inventory},
     modules::{
-        dhcp::DhcpHostBindingScore, http::IPxeMacBootFileScore,
-        inventory::DiscoverHostForRoleScore, okd::templates::BootstrapIpxeTpl,
+        dhcp::DhcpHostBindingScore,
+        http::IPxeMacBootFileScore,
+        inventory::DiscoverHostForRoleScore,
+        okd::{host_network::HostNetworkConfigurationScore, templates::BootstrapIpxeTpl},
     },
     score::Score,
     topology::{HAClusterTopology, HostBinding},
@@ -28,7 +30,7 @@ pub struct OKDSetup03ControlPlaneScore {}
 
 impl Score<HAClusterTopology> for OKDSetup03ControlPlaneScore {
     fn create_interpret(&self) -> Box<dyn Interpret<HAClusterTopology>> {
-        Box::new(OKDSetup03ControlPlaneInterpret::new(self.clone()))
+        Box::new(OKDSetup03ControlPlaneInterpret::new())
     }
 
     fn name(&self) -> String {
@@ -38,17 +40,15 @@ impl Score<HAClusterTopology> for OKDSetup03ControlPlaneScore {
 
 #[derive(Debug, Clone)]
 pub struct OKDSetup03ControlPlaneInterpret {
-    score: OKDSetup03ControlPlaneScore,
     version: Version,
     status: InterpretStatus,
 }
 
 impl OKDSetup03ControlPlaneInterpret {
-    pub fn new(score: OKDSetup03ControlPlaneScore) -> Self {
+    pub fn new() -> Self {
         let version = Version::from("1.0.0").unwrap();
         Self {
             version,
-            score,
             status: InterpretStatus::QUEUED,
         }
     }
@@ -159,7 +159,7 @@ impl OKDSetup03ControlPlaneInterpret {
         }
         .to_string();
 
-        debug!("[ControlPlane] iPXE content template:\n{}", content);
+        debug!("[ControlPlane] iPXE content template:\n{content}");
 
         // Create and apply an iPXE boot file for each node.
         for node in nodes {
@@ -189,16 +189,13 @@ impl OKDSetup03ControlPlaneInterpret {
     /// Prompts the user to reboot the target control plane nodes.
     async fn reboot_targets(&self, nodes: &Vec<PhysicalHost>) -> Result<(), InterpretError> {
         let node_ids: Vec<String> = nodes.iter().map(|n| n.id.to_string()).collect();
-        info!(
-            "[ControlPlane] Requesting reboot for control plane nodes: {:?}",
-            node_ids
-        );
+        info!("[ControlPlane] Requesting reboot for control plane nodes: {node_ids:?}",);
 
         let confirmation = inquire::Confirm::new(
                 &format!("Please reboot the {} control plane nodes ({}) to apply their PXE configuration. Press enter when ready.", nodes.len(), node_ids.join(", ")),
         )
         .prompt()
-        .map_err(|e| InterpretError::new(format!("User prompt failed: {}", e)))?;
+        .map_err(|e| InterpretError::new(format!("User prompt failed: {e}")))?;
 
         if !confirmation {
             return Err(InterpretError::new(
@@ -210,14 +207,23 @@ impl OKDSetup03ControlPlaneInterpret {
     }
 
     /// Placeholder for automating network bonding configuration.
-    async fn persist_network_bond(&self) -> Result<(), InterpretError> {
-        // Generate MC or NNCP from inventory NIC data; apply via ignition or post-join.
-        info!("[ControlPlane] Ensuring persistent bonding via MachineConfig/NNCP");
+    async fn persist_network_bond(
+        &self,
+        inventory: &Inventory,
+        topology: &HAClusterTopology,
+        hosts: &Vec<PhysicalHost>,
+    ) -> Result<(), InterpretError> {
+        info!("[ControlPlane] Ensuring persistent bonding");
+        let score = HostNetworkConfigurationScore {
+            hosts: hosts.clone(),
+        };
+        score.interpret(inventory, topology).await?;
+
         inquire::Confirm::new(
             "Network configuration for control plane nodes is not automated yet. Configure it manually if needed.",
         )
         .prompt()
-        .map_err(|e| InterpretError::new(format!("User prompt failed: {}", e)))?;
+        .map_err(|e| InterpretError::new(format!("User prompt failed: {e}")))?;
 
         Ok(())
     }
@@ -260,7 +266,8 @@ impl Interpret<HAClusterTopology> for OKDSetup03ControlPlaneInterpret {
         self.reboot_targets(&nodes).await?;
 
         // 5. Placeholder for post-boot network configuration (e.g., bonding).
-        self.persist_network_bond().await?;
+        self.persist_network_bond(inventory, topology, &nodes)
+            .await?;
 
         // TODO: Implement a step to wait for the control plane nodes to join the cluster
         // and for the cluster operators to become available. This would be similar to

harmony/src/modules/okd/bootstrap_load_balancer.rs

@@ -77,6 +77,8 @@ impl OKDBootstrapLoadBalancerScore {
             address: topology.bootstrap_host.ip.to_string(),
             port,
         });
+
+        backend.dedup();
         backend
     }
 }

harmony/src/modules/okd/crd/mod.rs

@@ -0,0 +1,41 @@
+use kube::CustomResource;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+pub mod nmstate;
+
+#[derive(CustomResource, Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[kube(
+    group = "operators.coreos.com",
+    version = "v1",
+    kind = "OperatorGroup",
+    namespaced
+)]
+#[serde(rename_all = "camelCase")]
+pub struct OperatorGroupSpec {
+    pub target_namespaces: Vec<String>,
+}
+
+#[derive(CustomResource, Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[kube(
+    group = "operators.coreos.com",
+    version = "v1alpha1",
+    kind = "Subscription",
+    namespaced
+)]
+#[serde(rename_all = "camelCase")]
+pub struct SubscriptionSpec {
+    pub name: String,
+    pub source: String,
+    pub source_namespace: String,
+    pub channel: Option<String>,
+    pub install_plan_approval: Option<InstallPlanApproval>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, JsonSchema)]
+pub enum InstallPlanApproval {
+    #[serde(rename = "Automatic")]
+    Automatic,
+    #[serde(rename = "Manual")]
+    Manual,
+}

harmony/src/modules/okd/crd/nmstate.rs

@@ -0,0 +1,251 @@
+use std::collections::BTreeMap;
+
+use kube::CustomResource;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+
+#[derive(CustomResource, Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[kube(group = "nmstate.io", version = "v1", kind = "NMState", namespaced)]
+#[serde(rename_all = "camelCase")]
+pub struct NMStateSpec {
+    pub probe_configuration: Option<ProbeConfig>,
+}
+
+impl Default for NMState {
+    fn default() -> Self {
+        Self {
+            metadata: Default::default(),
+            spec: NMStateSpec {
+                probe_configuration: None,
+            },
+        }
+    }
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ProbeConfig {
+    pub dns: ProbeDns,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ProbeDns {
+    pub host: String,
+}
+
+#[derive(CustomResource, Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[kube(
+    group = "nmstate.io",
+    version = "v1",
+    kind = "NodeNetworkConfigurationPolicy",
+    namespaced
+)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeNetworkConfigurationPolicySpec {
+    pub node_selector: Option<BTreeMap<String, String>>,
+    pub desired_state: DesiredStateSpec,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct DesiredStateSpec {
+    pub interfaces: Vec<InterfaceSpec>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct InterfaceSpec {
+    pub name: String,
+    pub description: Option<String>,
+    pub r#type: String,
+    pub state: String,
+    pub mac_address: Option<String>,
+    pub mtu: Option<u32>,
+    pub controller: Option<String>,
+    pub ipv4: Option<IpStackSpec>,
+    pub ipv6: Option<IpStackSpec>,
+    pub ethernet: Option<EthernetSpec>,
+    pub link_aggregation: Option<BondSpec>,
+    pub vlan: Option<VlanSpec>,
+    pub vxlan: Option<VxlanSpec>,
+    pub mac_vtap: Option<MacVtapSpec>,
+    pub mac_vlan: Option<MacVlanSpec>,
+    pub infiniband: Option<InfinibandSpec>,
+    pub linux_bridge: Option<LinuxBridgeSpec>,
+    pub ovs_bridge: Option<OvsBridgeSpec>,
+    pub ethtool: Option<EthtoolSpec>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct IpStackSpec {
+    pub enabled: Option<bool>,
+    pub dhcp: Option<bool>,
+    pub autoconf: Option<bool>,
+    pub address: Option<Vec<IpAddressSpec>>,
+    pub auto_dns: Option<bool>,
+    pub auto_gateway: Option<bool>,
+    pub auto_routes: Option<bool>,
+    pub dhcp_client_id: Option<String>,
+    pub dhcp_duid: Option<String>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct IpAddressSpec {
+    pub ip: String,
+    pub prefix_length: u8,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct EthernetSpec {
+    pub speed: Option<u32>,
+    pub duplex: Option<String>,
+    pub auto_negotiation: Option<bool>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct BondSpec {
+    pub mode: String,
+    pub ports: Vec<String>,
+    pub options: Option<BTreeMap<String, Value>>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct VlanSpec {
+    pub base_iface: String,
+    pub id: u16,
+    pub protocol: Option<String>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct VxlanSpec {
+    pub base_iface: String,
+    pub id: u32,
+    pub remote: String,
+    pub local: Option<String>,
+    pub learning: Option<bool>,
+    pub destination_port: Option<u16>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct MacVtapSpec {
+    pub base_iface: String,
+    pub mode: String,
+    pub promiscuous: Option<bool>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct MacVlanSpec {
+    pub base_iface: String,
+    pub mode: String,
+    pub promiscuous: Option<bool>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct InfinibandSpec {
+    pub base_iface: String,
+    pub pkey: String,
+    pub mode: String,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct LinuxBridgeSpec {
+    pub options: Option<LinuxBridgeOptions>,
+    pub ports: Option<Vec<LinuxBridgePort>>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct LinuxBridgeOptions {
+    pub mac_ageing_time: Option<u32>,
+    pub multicast_snooping: Option<bool>,
+    pub stp: Option<StpOptions>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct StpOptions {
+    pub enabled: Option<bool>,
+    pub forward_delay: Option<u16>,
+    pub hello_time: Option<u16>,
+    pub max_age: Option<u16>,
+    pub priority: Option<u16>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct LinuxBridgePort {
+    pub name: String,
+    pub vlan: Option<LinuxBridgePortVlan>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct LinuxBridgePortVlan {
+    pub mode: Option<String>,
+    pub trunk_tags: Option<Vec<VlanTag>>,
+    pub tag: Option<u16>,
+    pub enable_native: Option<bool>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct VlanTag {
+    pub id: u16,
+    pub id_range: Option<VlanIdRange>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct VlanIdRange {
+    pub min: u16,
+    pub max: u16,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct OvsBridgeSpec {
+    pub options: Option<OvsBridgeOptions>,
+    pub ports: Option<Vec<OvsPortSpec>>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct OvsBridgeOptions {
+    pub stp: Option<bool>,
+    pub rstp: Option<bool>,
+    pub mcast_snooping_enable: Option<bool>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct OvsPortSpec {
+    pub name: String,
+    pub link_aggregation: Option<BondSpec>,
+    pub vlan: Option<LinuxBridgePortVlan>,
+    pub r#type: Option<String>,
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct EthtoolSpec {
+    // TODO: Properly describe this spec (https://nmstate.io/devel/yaml_api.html#ethtool)
+}
+
+#[derive(Deserialize, Serialize, Clone, Debug, Default, JsonSchema)]
+#[serde(rename_all = "kebab-case")]
+pub struct EthtoolFecSpec {
+    pub auto: Option<bool>,
+    pub mode: Option<String>,
+}

harmony/src/modules/okd/host_network.rs

@@ -0,0 +1,394 @@
+use async_trait::async_trait;
+use harmony_types::id::Id;
+use log::{debug, info};
+use serde::Serialize;
+
+use crate::{
+    data::Version,
+    hardware::PhysicalHost,
+    interpret::{Interpret, InterpretError, InterpretName, InterpretStatus, Outcome},
+    inventory::Inventory,
+    score::Score,
+    topology::{HostNetworkConfig, NetworkInterface, Switch, SwitchPort, Topology},
+};
+
+#[derive(Debug, Clone, Serialize)]
+pub struct HostNetworkConfigurationScore {
+    pub hosts: Vec<PhysicalHost>,
+}
+
+impl<T: Topology + Switch> Score<T> for HostNetworkConfigurationScore {
+    fn name(&self) -> String {
+        "HostNetworkConfigurationScore".into()
+    }
+
+    fn create_interpret(&self) -> Box<dyn Interpret<T>> {
+        Box::new(HostNetworkConfigurationInterpret {
+            score: self.clone(),
+        })
+    }
+}
+
+#[derive(Debug)]
+pub struct HostNetworkConfigurationInterpret {
+    score: HostNetworkConfigurationScore,
+}
+
+impl HostNetworkConfigurationInterpret {
+    async fn configure_network_for_host<T: Topology + Switch>(
+        &self,
+        topology: &T,
+        host: &PhysicalHost,
+    ) -> Result<(), InterpretError> {
+        let switch_ports = self.collect_switch_ports_for_host(topology, host).await?;
+        if !switch_ports.is_empty() {
+            topology
+                .configure_host_network(host, HostNetworkConfig { switch_ports })
+                .await
+                .map_err(|e| InterpretError::new(format!("Failed to configure host: {e}")))?;
+        }
+
+        Ok(())
+    }
+
+    async fn collect_switch_ports_for_host<T: Topology + Switch>(
+        &self,
+        topology: &T,
+        host: &PhysicalHost,
+    ) -> Result<Vec<SwitchPort>, InterpretError> {
+        let mut switch_ports = vec![];
+
+        for network_interface in &host.network {
+            let mac_address = network_interface.mac_address;
+
+            match topology.get_port_for_mac_address(&mac_address).await {
+                Ok(Some(port)) => {
+                    switch_ports.push(SwitchPort {
+                        interface: NetworkInterface {
+                            name: network_interface.name.clone(),
+                            mac_address,
+                            speed_mbps: network_interface.speed_mbps,
+                            mtu: network_interface.mtu,
+                        },
+                        port,
+                    });
+                }
+                Ok(None) => debug!("No port found for host '{}', skipping", host.id),
+                Err(e) => {
+                    return Err(InterpretError::new(format!(
+                        "Failed to get port for host '{}': {}",
+                        host.id, e
+                    )));
+                }
+            }
+        }
+
+        Ok(switch_ports)
+    }
+}
+
+#[async_trait]
+impl<T: Topology + Switch> Interpret<T> for HostNetworkConfigurationInterpret {
+    fn get_name(&self) -> InterpretName {
+        InterpretName::Custom("HostNetworkConfigurationInterpret")
+    }
+
+    fn get_version(&self) -> Version {
+        todo!()
+    }
+
+    fn get_status(&self) -> InterpretStatus {
+        todo!()
+    }
+
+    fn get_children(&self) -> Vec<Id> {
+        vec![]
+    }
+
+    async fn execute(
+        &self,
+        _inventory: &Inventory,
+        topology: &T,
+    ) -> Result<Outcome, InterpretError> {
+        if self.score.hosts.is_empty() {
+            return Ok(Outcome::noop("No hosts to configure".into()));
+        }
+
+        info!(
+            "Started network configuration for {} host(s)...",
+            self.score.hosts.len()
+        );
+
+        topology
+            .setup_switch()
+            .await
+            .map_err(|e| InterpretError::new(format!("Switch setup failed: {e}")))?;
+
+        let mut configured_host_count = 0;
+        for host in &self.score.hosts {
+            self.configure_network_for_host(topology, host).await?;
+            configured_host_count += 1;
+        }
+
+        if configured_host_count > 0 {
+            Ok(Outcome::success(format!(
+                "Configured {configured_host_count}/{} host(s)",
+                self.score.hosts.len()
+            )))
+        } else {
+            Ok(Outcome::noop("No hosts configured".into()))
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use assertor::*;
+    use harmony_types::{net::MacAddress, switch::PortLocation};
+    use lazy_static::lazy_static;
+
+    use crate::{
+        hardware::HostCategory,
+        topology::{
+            HostNetworkConfig, PreparationError, PreparationOutcome, SwitchError, SwitchPort,
+        },
+    };
+    use std::{
+        str::FromStr,
+        sync::{Arc, Mutex},
+    };
+
+    use super::*;
+
+    lazy_static! {
+        pub static ref HOST_ID: Id = Id::from_str("host-1").unwrap();
+        pub static ref ANOTHER_HOST_ID: Id = Id::from_str("host-2").unwrap();
+        pub static ref EXISTING_INTERFACE: NetworkInterface = NetworkInterface {
+            mac_address: MacAddress::try_from("AA:BB:CC:DD:EE:F1".to_string()).unwrap(),
+            name: "interface-1".into(),
+            speed_mbps: None,
+            mtu: 1,
+        };
+        pub static ref ANOTHER_EXISTING_INTERFACE: NetworkInterface = NetworkInterface {
+            mac_address: MacAddress::try_from("AA:BB:CC:DD:EE:F2".to_string()).unwrap(),
+            name: "interface-2".into(),
+            speed_mbps: None,
+            mtu: 1,
+        };
+        pub static ref UNKNOWN_INTERFACE: NetworkInterface = NetworkInterface {
+            mac_address: MacAddress::try_from("11:22:33:44:55:61".to_string()).unwrap(),
+            name: "unknown-interface".into(),
+            speed_mbps: None,
+            mtu: 1,
+        };
+        pub static ref PORT: PortLocation = PortLocation(1, 0, 42);
+        pub static ref ANOTHER_PORT: PortLocation = PortLocation(2, 0, 42);
+    }
+
+    #[tokio::test]
+    async fn should_setup_switch() {
+        let host = given_host(&HOST_ID, vec![EXISTING_INTERFACE.clone()]);
+        let score = given_score(vec![host]);
+        let topology = TopologyWithSwitch::new();
+
+        let _ = score.interpret(&Inventory::empty(), &topology).await;
+
+        let switch_setup = topology.switch_setup.lock().unwrap();
+        assert_that!(*switch_setup).is_true();
+    }
+
+    #[tokio::test]
+    async fn host_with_one_mac_address_should_create_bond_with_one_interface() {
+        let host = given_host(&HOST_ID, vec![EXISTING_INTERFACE.clone()]);
+        let score = given_score(vec![host]);
+        let topology = TopologyWithSwitch::new();
+
+        let _ = score.interpret(&Inventory::empty(), &topology).await;
+
+        let configured_host_networks = topology.configured_host_networks.lock().unwrap();
+        assert_that!(*configured_host_networks).contains_exactly(vec![(
+            HOST_ID.clone(),
+            HostNetworkConfig {
+                switch_ports: vec![SwitchPort {
+                    interface: EXISTING_INTERFACE.clone(),
+                    port: PORT.clone(),
+                }],
+            },
+        )]);
+    }
+
+    #[tokio::test]
+    async fn host_with_multiple_mac_addresses_should_create_one_bond_with_all_interfaces() {
+        let score = given_score(vec![given_host(
+            &HOST_ID,
+            vec![
+                EXISTING_INTERFACE.clone(),
+                ANOTHER_EXISTING_INTERFACE.clone(),
+            ],
+        )]);
+        let topology = TopologyWithSwitch::new();
+
+        let _ = score.interpret(&Inventory::empty(), &topology).await;
+
+        let configured_host_networks = topology.configured_host_networks.lock().unwrap();
+        assert_that!(*configured_host_networks).contains_exactly(vec![(
+            HOST_ID.clone(),
+            HostNetworkConfig {
+                switch_ports: vec![
+                    SwitchPort {
+                        interface: EXISTING_INTERFACE.clone(),
+                        port: PORT.clone(),
+                    },
+                    SwitchPort {
+                        interface: ANOTHER_EXISTING_INTERFACE.clone(),
+                        port: ANOTHER_PORT.clone(),
+                    },
+                ],
+            },
+        )]);
+    }
+
+    #[tokio::test]
+    async fn multiple_hosts_should_create_one_bond_per_host() {
+        let score = given_score(vec![
+            given_host(&HOST_ID, vec![EXISTING_INTERFACE.clone()]),
+            given_host(&ANOTHER_HOST_ID, vec![ANOTHER_EXISTING_INTERFACE.clone()]),
+        ]);
+        let topology = TopologyWithSwitch::new();
+
+        let _ = score.interpret(&Inventory::empty(), &topology).await;
+
+        let configured_host_networks = topology.configured_host_networks.lock().unwrap();
+        assert_that!(*configured_host_networks).contains_exactly(vec![
+            (
+                HOST_ID.clone(),
+                HostNetworkConfig {
+                    switch_ports: vec![SwitchPort {
+                        interface: EXISTING_INTERFACE.clone(),
+                        port: PORT.clone(),
+                    }],
+                },
+            ),
+            (
+                ANOTHER_HOST_ID.clone(),
+                HostNetworkConfig {
+                    switch_ports: vec![SwitchPort {
+                        interface: ANOTHER_EXISTING_INTERFACE.clone(),
+                        port: ANOTHER_PORT.clone(),
+                    }],
+                },
+            ),
+        ]);
+    }
+
+    #[tokio::test]
+    async fn port_not_found_for_mac_address_should_not_configure_interface() {
+        let score = given_score(vec![given_host(&HOST_ID, vec![UNKNOWN_INTERFACE.clone()])]);
+        let topology = TopologyWithSwitch::new_port_not_found();
+
+        let _ = score.interpret(&Inventory::empty(), &topology).await;
+
+        let configured_host_networks = topology.configured_host_networks.lock().unwrap();
+        assert_that!(*configured_host_networks).is_empty();
+    }
+
+    fn given_score(hosts: Vec<PhysicalHost>) -> HostNetworkConfigurationScore {
+        HostNetworkConfigurationScore { hosts }
+    }
+
+    fn given_host(id: &Id, network_interfaces: Vec<NetworkInterface>) -> PhysicalHost {
+        let network = network_interfaces.iter().map(given_interface).collect();
+
+        PhysicalHost {
+            id: id.clone(),
+            category: HostCategory::Server,
+            network,
+            storage: vec![],
+            labels: vec![],
+            memory_modules: vec![],
+            cpus: vec![],
+        }
+    }
+
+    fn given_interface(
+        interface: &NetworkInterface,
+    ) -> harmony_inventory_agent::hwinfo::NetworkInterface {
+        harmony_inventory_agent::hwinfo::NetworkInterface {
+            name: interface.name.clone(),
+            mac_address: interface.mac_address,
+            speed_mbps: interface.speed_mbps,
+            is_up: true,
+            mtu: interface.mtu,
+            ipv4_addresses: vec![],
+            ipv6_addresses: vec![],
+            driver: "driver".into(),
+            firmware_version: None,
+        }
+    }
+
+    struct TopologyWithSwitch {
+        available_ports: Arc<Mutex<Vec<PortLocation>>>,
+        configured_host_networks: Arc<Mutex<Vec<(Id, HostNetworkConfig)>>>,
+        switch_setup: Arc<Mutex<bool>>,
+    }
+
+    impl TopologyWithSwitch {
+        fn new() -> Self {
+            Self {
+                available_ports: Arc::new(Mutex::new(vec![PORT.clone(), ANOTHER_PORT.clone()])),
+                configured_host_networks: Arc::new(Mutex::new(vec![])),
+                switch_setup: Arc::new(Mutex::new(false)),
+            }
+        }
+
+        fn new_port_not_found() -> Self {
+            Self {
+                available_ports: Arc::new(Mutex::new(vec![])),
+                configured_host_networks: Arc::new(Mutex::new(vec![])),
+                switch_setup: Arc::new(Mutex::new(false)),
+            }
+        }
+    }
+
+    #[async_trait]
+    impl Topology for TopologyWithSwitch {
+        fn name(&self) -> &str {
+            "SwitchWithPortTopology"
+        }
+
+        async fn ensure_ready(&self) -> Result<PreparationOutcome, PreparationError> {
+            Ok(PreparationOutcome::Success { details: "".into() })
+        }
+    }
+
+    #[async_trait]
+    impl Switch for TopologyWithSwitch {
+        async fn setup_switch(&self) -> Result<(), SwitchError> {
+            let mut switch_configured = self.switch_setup.lock().unwrap();
+            *switch_configured = true;
+            Ok(())
+        }
+
+        async fn get_port_for_mac_address(
+            &self,
+            _mac_address: &MacAddress,
+        ) -> Result<Option<PortLocation>, SwitchError> {
+            let mut ports = self.available_ports.lock().unwrap();
+            if ports.is_empty() {
+                return Ok(None);
+            }
+            Ok(Some(ports.remove(0)))
+        }
+
+        async fn configure_host_network(
+            &self,
+            host: &PhysicalHost,
+            config: HostNetworkConfig,
+        ) -> Result<(), SwitchError> {
+            let mut configured_host_networks = self.configured_host_networks.lock().unwrap();
+            configured_host_networks.push((host.id.clone(), config.clone()));
+
+            Ok(())
+        }
+    }
+}

harmony/src/modules/okd/mod.rs

@@ -19,3 +19,5 @@ pub use bootstrap_03_control_plane::*;
 pub use bootstrap_04_workers::*;
 pub use bootstrap_05_sanity_check::*;
 pub use bootstrap_06_installation_report::*;
+pub mod crd;
+pub mod host_network;

harmony_composer/src/main.rs

@@ -54,6 +54,9 @@ struct DeployArgs {
 
     #[arg(long = "profile", short = 'p', default_value = "dev")]
     harmony_profile: HarmonyProfile,
+
+    #[arg(long = "dry-run", short = 'd', default_value = "false")]
+    dry_run: bool,
 }
 
 #[derive(Args, Clone, Debug)]
@@ -178,6 +181,7 @@ async fn main() {
                 command
                     .env("HARMONY_USE_LOCAL_K3D", format!("{use_local_k3d}"))
                     .env("HARMONY_PROFILE", format!("{}", args.harmony_profile))
+                    .env("HARMONY_DRY_RUN", format!("{}", args.dry_run))
                     .arg("-y")
                     .arg("-a");
 

harmony_types/src/id.rs

@@ -19,7 +19,7 @@ use serde::{Deserialize, Serialize};
 ///
 /// **It is not meant to be very secure or unique**, it is suitable to generate up to 10 000 items per
 /// second with a reasonable collision rate of 0,000014 % as calculated by this calculator : https://kevingal.com/apps/collision.html
-#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[derive(Debug, Clone, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
 pub struct Id {
     value: String,
 }

harmony_types/src/lib.rs

@@ -1,2 +1,3 @@
 pub mod id;
 pub mod net;
+pub mod switch;

harmony_types/src/net.rs

@@ -1,6 +1,6 @@
 use serde::{Deserialize, Serialize};
 
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize, PartialOrd, Ord)]
 pub struct MacAddress(pub [u8; 6]);
 
 impl MacAddress {
@@ -41,7 +41,7 @@ impl TryFrom<String> for MacAddress {
             bytes[i] = u8::from_str_radix(part, 16).map_err(|_| {
                 std::io::Error::new(
                     std::io::ErrorKind::InvalidInput,
-                    format!("Invalid hex value in part {}: '{}'", i, part),
+                    format!("Invalid hex value in part {i}: '{part}'"),
                 )
             })?;
         }
@@ -106,8 +106,8 @@ impl Serialize for Url {
 impl std::fmt::Display for Url {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Url::LocalFolder(path) => write!(f, "{}", path),
-            Url::Url(url) => write!(f, "{}", url),
+            Url::LocalFolder(path) => write!(f, "{path}"),
+            Url::Url(url) => write!(f, "{url}"),
         }
     }
 }

harmony_types/src/switch.rs

@@ -0,0 +1,176 @@
+use std::{fmt, str::FromStr};
+
+/// Simple error type for port parsing failures.
+#[derive(Debug)]
+pub enum PortParseError {
+    /// The port string did not conform to the expected S/M/P or range format.
+    InvalidFormat,
+    /// A stack, module, or port segment could not be parsed as a number.
+    InvalidSegment(String),
+}
+
+impl fmt::Display for PortParseError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            PortParseError::InvalidFormat => write!(f, "Port string is in an unexpected format."),
+            PortParseError::InvalidSegment(s) => write!(f, "Invalid segment in port string: {}", s),
+        }
+    }
+}
+
+/// Represents the atomic, physical location of a switch port: `<Stack>/<Module>/<Port>`.
+///
+/// Example: `1/1/1`
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone)]
+pub struct PortLocation(pub u8, pub u8, pub u8);
+
+impl fmt::Display for PortLocation {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}/{}/{}", self.0, self.1, self.2)
+    }
+}
+
+impl FromStr for PortLocation {
+    type Err = PortParseError;
+
+    /// Parses a string slice into a `PortLocation`.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use std::str::FromStr;
+    /// use harmony_types::switch::PortLocation;
+    ///
+    /// assert_eq!(PortLocation::from_str("1/1/1").unwrap(), PortLocation(1, 1, 1));
+    /// assert_eq!(PortLocation::from_str("12/5/48").unwrap(), PortLocation(12, 5, 48));
+    /// assert!(PortLocation::from_str("1/A/1").is_err());
+    /// ```
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let parts: Vec<&str> = s.split('/').collect();
+
+        if parts.len() != 3 {
+            return Err(PortParseError::InvalidFormat);
+        }
+
+        let parse_segment = |part: &str| -> Result<u8, Self::Err> {
+            u8::from_str(part).map_err(|_| PortParseError::InvalidSegment(part.to_string()))
+        };
+
+        let stack = parse_segment(parts[0])?;
+        let module = parse_segment(parts[1])?;
+        let port = parse_segment(parts[2])?;
+
+        Ok(PortLocation(stack, module, port))
+    }
+}
+
+/// Represents a Port configuration input, which can be a single port, a sequential range,
+/// or an explicit set defined by endpoints.
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone)]
+pub enum PortDeclaration {
+    /// A single switch port defined by its location. Example: `PortDeclaration::Single(1/1/1)`
+    Single(PortLocation),
+    /// A strictly sequential range defined by two endpoints using the hyphen separator (`-`).
+    /// All ports between the endpoints (inclusive) are implicitly included.
+    /// Example: `PortDeclaration::Range(1/1/1, 1/1/4)`
+    Range(PortLocation, PortLocation),
+    /// A set of ports defined by two endpoints using the asterisk separator (`*`).
+    /// The actual member ports must be determined contextually (e.g., from MAC tables or
+    /// explicit configuration lists).
+    /// Example: `PortDeclaration::Set(1/1/1, 1/1/3)` where only ports 1 and 3 might be active.
+    Set(PortLocation, PortLocation),
+}
+
+impl PortDeclaration {
+    /// Parses a port configuration string into a structured `PortDeclaration` enum.
+    ///
+    /// This function performs only basic format and numerical parsing, assuming the input
+    /// strings (e.g., from `show` commands) are semantically valid and logically ordered.
+    ///
+    /// # Supported Formats
+    ///
+    /// * **Single Port:** `"1/1/1"`
+    /// * **Range (Hyphen, `-`):** `"1/1/1-1/1/4"`
+    /// * **Set (Asterisk, `*`):** `"1/1/1*1/1/4"`
+    ///
+    /// # Errors
+    ///
+    /// Returns `PortParseError` if the string format is incorrect or numerical segments
+    /// cannot be parsed.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// use harmony_types::switch::{PortDeclaration, PortLocation};
+    ///
+    /// // Single Port
+    /// assert_eq!(PortDeclaration::parse("3/2/15").unwrap(), PortDeclaration::Single(PortLocation(3, 2, 15)));
+    ///
+    /// // Range (Hyphen) - implies sequential ports
+    /// let result_range = PortDeclaration::parse("1/1/1-1/1/4").unwrap();
+    /// assert_eq!(result_range, PortDeclaration::Range(PortLocation(1, 1, 1), PortLocation(1, 1, 4)));
+    ///
+    /// // Set (Asterisk) - implies non-sequential set defined by endpoints
+    /// let result_set = PortDeclaration::parse("1/1/48*2/1/48").unwrap();
+    /// assert_eq!(result_set, PortDeclaration::Set(PortLocation(1, 1, 48), PortLocation(2, 1, 48)));
+    ///
+    /// // Invalid Format (will still fail basic parsing)
+    /// assert!(PortDeclaration::parse("1/1/1/1").is_err());
+    /// ```
+    pub fn parse(port_str: &str) -> Result<Self, PortParseError> {
+        if let Some((start_str, end_str)) = port_str.split_once('-') {
+            let start_port = PortLocation::from_str(start_str.trim())?;
+            let end_port = PortLocation::from_str(end_str.trim())?;
+            return Ok(PortDeclaration::Range(start_port, end_port));
+        }
+
+        if let Some((start_str, end_str)) = port_str.split_once('*') {
+            let start_port = PortLocation::from_str(start_str.trim())?;
+            let end_port = PortLocation::from_str(end_str.trim())?;
+            return Ok(PortDeclaration::Set(start_port, end_port));
+        }
+
+        let location = PortLocation::from_str(port_str)?;
+        Ok(PortDeclaration::Single(location))
+    }
+}
+
+impl fmt::Display for PortDeclaration {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            PortDeclaration::Single(port) => write!(f, "{port}"),
+            PortDeclaration::Range(start, end) => write!(f, "{start}-{end}"),
+            PortDeclaration::Set(start, end) => write!(f, "{start}*{end}"),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_port_location_invalid() {
+        assert!(PortLocation::from_str("1/1").is_err());
+        assert!(PortLocation::from_str("1/A/1").is_err());
+        assert!(PortLocation::from_str("1/1/256").is_err());
+    }
+
+    #[test]
+    fn test_parse_declaration_single() {
+        let single_result = PortDeclaration::parse("1/1/4").unwrap();
+        assert!(matches!(single_result, PortDeclaration::Single(_)));
+    }
+
+    #[test]
+    fn test_parse_declaration_range() {
+        let range_result = PortDeclaration::parse("1/1/1-1/1/4").unwrap();
+        assert!(matches!(range_result, PortDeclaration::Range(_, _)));
+    }
+
+    #[test]
+    fn test_parse_declaration_set() {
+        let set_result = PortDeclaration::parse("1/1/48*2/1/48").unwrap();
+        assert!(matches!(set_result, PortDeclaration::Set(_, _)));
+    }
+}

opnsense-config-xml/src/data/haproxy.rs

@@ -77,7 +77,7 @@ impl YaSerializeTrait for HAProxyId {
     }
 }
 
-#[derive(PartialEq, Debug)]
+#[derive(PartialEq, Debug, Clone)]
 pub struct HAProxyId(String);
 
 impl Default for HAProxyId {
@@ -297,7 +297,7 @@ pub struct HAProxyFrontends {
     pub frontend: Vec<Frontend>,
 }
 
-#[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
+#[derive(Clone, Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct Frontend {
     #[yaserde(attribute = true)]
     pub uuid: String,
@@ -310,7 +310,7 @@ pub struct Frontend {
     pub bind_options: MaybeString,
     pub mode: String,
     #[yaserde(rename = "defaultBackend")]
-    pub default_backend: String,
+    pub default_backend: Option<String>,
     pub ssl_enabled: i32,
     pub ssl_certificates: MaybeString,
     pub ssl_default_certificate: MaybeString,
@@ -416,7 +416,7 @@ pub struct HAProxyBackends {
     pub backends: Vec<HAProxyBackend>,
 }
 
-#[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
+#[derive(Clone, Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct HAProxyBackend {
     #[yaserde(attribute = true, rename = "uuid")]
     pub uuid: String,
@@ -535,7 +535,7 @@ pub struct HAProxyServers {
     pub servers: Vec<HAProxyServer>,
 }
 
-#[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
+#[derive(Clone, Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct HAProxyServer {
     #[yaserde(attribute = true, rename = "uuid")]
     pub uuid: String,
@@ -543,8 +543,8 @@ pub struct HAProxyServer {
     pub enabled: u8,
     pub name: String,
     pub description: MaybeString,
-    pub address: String,
-    pub port: u16,
+    pub address: Option<String>,
+    pub port: Option<u16>,
     pub checkport: MaybeString,
     pub mode: String,
     pub multiplexer_protocol: MaybeString,
@@ -589,7 +589,7 @@ pub struct HAProxyHealthChecks {
     pub healthchecks: Vec<HAProxyHealthCheck>,
 }
 
-#[derive(Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
+#[derive(Clone, Default, PartialEq, Debug, YaSerialize, YaDeserialize)]
 pub struct HAProxyHealthCheck {
     #[yaserde(attribute = true)]
     pub uuid: String,

opnsense-config/Cargo.toml

@@ -25,6 +25,7 @@ sha2 = "0.10.9"
 
 [dev-dependencies]
 pretty_assertions.workspace = true
+assertor.workspace = true
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(e2e_test)'] }

opnsense-config/src/config/manager/ssh.rs

@@ -30,8 +30,7 @@ impl SshConfigManager {
 
         self.opnsense_shell
             .exec(&format!(
-                "cp /conf/config.xml /conf/backup/{}",
-                backup_filename
+                "cp /conf/config.xml /conf/backup/{backup_filename}"
             ))
             .await
     }

opnsense-config/src/config/shell/mod.rs

@@ -1,9 +1,7 @@
 mod ssh;
-pub use ssh::*;
-
-use async_trait::async_trait;
-
 use crate::Error;
+use async_trait::async_trait;
+pub use ssh::*;
 
 #[async_trait]
 pub trait OPNsenseShell: std::fmt::Debug + Send + Sync {

opnsense-config/src/modules/load_balancer.rs

@@ -1,11 +1,8 @@
-use std::sync::Arc;
-
-use log::warn;
+use crate::{config::OPNsenseShell, Error};
 use opnsense_config_xml::{
     Frontend, HAProxy, HAProxyBackend, HAProxyHealthCheck, HAProxyServer, OPNsense,
 };
-
-use crate::{config::OPNsenseShell, Error};
+use std::{collections::HashSet, sync::Arc};
 
 pub struct LoadBalancerConfig<'a> {
     opnsense: &'a mut OPNsense,
@@ -31,7 +28,7 @@ impl<'a> LoadBalancerConfig<'a> {
         match &mut self.opnsense.opnsense.haproxy.as_mut() {
             Some(haproxy) => f(haproxy),
             None => unimplemented!(
-                "Adding a backend is not supported when haproxy config does not exist yet"
+                "Cannot configure load balancer when haproxy config does not exist yet"
             ),
         }
     }
@@ -40,21 +37,67 @@ impl<'a> LoadBalancerConfig<'a> {
         self.with_haproxy(|haproxy| haproxy.general.enabled = enabled as i32);
     }
 
-    pub fn add_backend(&mut self, backend: HAProxyBackend) {
-        warn!("TODO make sure this new backend does not refer non-existing entities like servers or health checks");
-        self.with_haproxy(|haproxy| haproxy.backends.backends.push(backend));
+    /// Configures a service by removing any existing service on the same port
+    /// and then adding the new definition. This ensures idempotency.
+    pub fn configure_service(
+        &mut self,
+        frontend: Frontend,
+        backend: HAProxyBackend,
+        servers: Vec<HAProxyServer>,
+        healthcheck: Option<HAProxyHealthCheck>,
+    ) {
+        self.remove_service_by_bind_address(&frontend.bind);
+        self.remove_servers(&servers);
+
+        self.add_new_service(frontend, backend, servers, healthcheck);
     }
 
-    pub fn add_frontend(&mut self, frontend: Frontend) {
-        self.with_haproxy(|haproxy| haproxy.frontends.frontend.push(frontend));
+    // Remove the corresponding real servers based on their name if they already exist.
+    fn remove_servers(&mut self, servers: &[HAProxyServer]) {
+        let server_names: HashSet<_> = servers.iter().map(|s| s.name.clone()).collect();
+        self.with_haproxy(|haproxy| {
+            haproxy
+                .servers
+                .servers
+                .retain(|s| !server_names.contains(&s.name));
+        });
     }
 
-    pub fn add_healthcheck(&mut self, healthcheck: HAProxyHealthCheck) {
-        self.with_haproxy(|haproxy| haproxy.healthchecks.healthchecks.push(healthcheck));
+    /// Removes a service and its dependent components based on the frontend's bind address.
+    /// This performs a cascading delete of the frontend, backend, servers, and health check.
+    fn remove_service_by_bind_address(&mut self, bind_address: &str) {
+        self.with_haproxy(|haproxy| {
+            let Some(old_frontend) = remove_frontend_by_bind_address(haproxy, bind_address) else {
+                return;
+            };
+
+            let Some(old_backend) = remove_backend(haproxy, old_frontend) else {
+                return;
+            };
+
+            remove_healthcheck(haproxy, &old_backend);
+            remove_linked_servers(haproxy, &old_backend);
+        });
     }
 
-    pub fn add_servers(&mut self, mut servers: Vec<HAProxyServer>) {
-        self.with_haproxy(|haproxy| haproxy.servers.servers.append(&mut servers));
+    /// Adds the components of a new service to the HAProxy configuration.
+    /// This function de-duplicates servers by name to prevent configuration errors.
+    fn add_new_service(
+        &mut self,
+        frontend: Frontend,
+        backend: HAProxyBackend,
+        servers: Vec<HAProxyServer>,
+        healthcheck: Option<HAProxyHealthCheck>,
+    ) {
+        self.with_haproxy(|haproxy| {
+            if let Some(check) = healthcheck {
+                haproxy.healthchecks.healthchecks.push(check);
+            }
+
+            haproxy.servers.servers.extend(servers);
+            haproxy.backends.backends.push(backend);
+            haproxy.frontends.frontend.push(frontend);
+        });
     }
 
     pub async fn reload_restart(&self) -> Result<(), Error> {
@@ -82,3 +125,262 @@ impl<'a> LoadBalancerConfig<'a> {
         Ok(())
     }
 }
+
+fn remove_frontend_by_bind_address(haproxy: &mut HAProxy, bind_address: &str) -> Option<Frontend> {
+    let pos = haproxy
+        .frontends
+        .frontend
+        .iter()
+        .position(|f| f.bind == bind_address);
+
+    match pos {
+        Some(pos) => Some(haproxy.frontends.frontend.remove(pos)),
+        None => None,
+    }
+}
+
+fn remove_backend(haproxy: &mut HAProxy, old_frontend: Frontend) -> Option<HAProxyBackend> {
+    let default_backend = old_frontend.default_backend?;
+    let pos = haproxy
+        .backends
+        .backends
+        .iter()
+        .position(|b| b.uuid == default_backend);
+
+    match pos {
+        Some(pos) => Some(haproxy.backends.backends.remove(pos)),
+        None => None, // orphaned frontend, shouldn't happen
+    }
+}
+
+fn remove_healthcheck(haproxy: &mut HAProxy, backend: &HAProxyBackend) {
+    if let Some(uuid) = &backend.health_check.content {
+        haproxy
+            .healthchecks
+            .healthchecks
+            .retain(|h| h.uuid != *uuid);
+    }
+}
+
+/// Remove the backend's servers. This assumes servers are not shared between services.
+fn remove_linked_servers(haproxy: &mut HAProxy, backend: &HAProxyBackend) {
+    if let Some(server_uuids_str) = &backend.linked_servers.content {
+        let server_uuids_to_remove: HashSet<_> = server_uuids_str.split(',').collect();
+        haproxy
+            .servers
+            .servers
+            .retain(|s| !server_uuids_to_remove.contains(s.uuid.as_str()));
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::config::DummyOPNSenseShell;
+    use assertor::*;
+    use opnsense_config_xml::{
+        Frontend, HAProxy, HAProxyBackend, HAProxyBackends, HAProxyFrontends, HAProxyHealthCheck,
+        HAProxyHealthChecks, HAProxyId, HAProxyServer, HAProxyServers, MaybeString, OPNsense,
+    };
+    use std::sync::Arc;
+
+    use super::LoadBalancerConfig;
+
+    static SERVICE_BIND_ADDRESS: &str = "192.168.1.1:80";
+    static OTHER_SERVICE_BIND_ADDRESS: &str = "192.168.1.1:443";
+
+    static SERVER_ADDRESS: &str = "1.1.1.1:80";
+    static OTHER_SERVER_ADDRESS: &str = "1.1.1.1:443";
+
+    #[test]
+    fn configure_service_should_add_all_service_components_to_haproxy() {
+        let mut opnsense = given_opnsense();
+        let mut load_balancer = given_load_balancer(&mut opnsense);
+        let (healthcheck, servers, backend, frontend) =
+            given_service(SERVICE_BIND_ADDRESS, SERVER_ADDRESS);
+
+        load_balancer.configure_service(
+            frontend.clone(),
+            backend.clone(),
+            servers.clone(),
+            Some(healthcheck.clone()),
+        );
+
+        assert_haproxy_configured_with(
+            opnsense,
+            vec![frontend],
+            vec![backend],
+            servers,
+            vec![healthcheck],
+        );
+    }
+
+    #[test]
+    fn configure_service_should_replace_service_on_same_bind_address() {
+        let (healthcheck, servers, backend, frontend) =
+            given_service(SERVICE_BIND_ADDRESS, SERVER_ADDRESS);
+        let mut opnsense = given_opnsense_with(given_haproxy(
+            vec![frontend.clone()],
+            vec![backend.clone()],
+            servers.clone(),
+            vec![healthcheck.clone()],
+        ));
+        let mut load_balancer = given_load_balancer(&mut opnsense);
+
+        let (updated_healthcheck, updated_servers, updated_backend, updated_frontend) =
+            given_service(SERVICE_BIND_ADDRESS, OTHER_SERVER_ADDRESS);
+
+        load_balancer.configure_service(
+            updated_frontend.clone(),
+            updated_backend.clone(),
+            updated_servers.clone(),
+            Some(updated_healthcheck.clone()),
+        );
+
+        assert_haproxy_configured_with(
+            opnsense,
+            vec![updated_frontend],
+            vec![updated_backend],
+            updated_servers,
+            vec![updated_healthcheck],
+        );
+    }
+
+    #[test]
+    fn configure_service_should_keep_existing_service_on_different_bind_addresses() {
+        let (healthcheck, servers, backend, frontend) =
+            given_service(SERVICE_BIND_ADDRESS, SERVER_ADDRESS);
+        let (other_healthcheck, other_servers, other_backend, other_frontend) =
+            given_service(OTHER_SERVICE_BIND_ADDRESS, OTHER_SERVER_ADDRESS);
+        let mut opnsense = given_opnsense_with(given_haproxy(
+            vec![frontend.clone()],
+            vec![backend.clone()],
+            servers.clone(),
+            vec![healthcheck.clone()],
+        ));
+        let mut load_balancer = given_load_balancer(&mut opnsense);
+
+        load_balancer.configure_service(
+            other_frontend.clone(),
+            other_backend.clone(),
+            other_servers.clone(),
+            Some(other_healthcheck.clone()),
+        );
+
+        assert_haproxy_configured_with(
+            opnsense,
+            vec![frontend, other_frontend],
+            vec![backend, other_backend],
+            [servers, other_servers].concat(),
+            vec![healthcheck, other_healthcheck],
+        );
+    }
+
+    fn assert_haproxy_configured_with(
+        opnsense: OPNsense,
+        frontends: Vec<Frontend>,
+        backends: Vec<HAProxyBackend>,
+        servers: Vec<HAProxyServer>,
+        healthchecks: Vec<HAProxyHealthCheck>,
+    ) {
+        let haproxy = opnsense.opnsense.haproxy.as_ref().unwrap();
+        assert_that!(haproxy.frontends.frontend).contains_exactly(frontends);
+        assert_that!(haproxy.backends.backends).contains_exactly(backends);
+        assert_that!(haproxy.servers.servers).is_equal_to(servers);
+        assert_that!(haproxy.healthchecks.healthchecks).contains_exactly(healthchecks);
+    }
+
+    fn given_opnsense() -> OPNsense {
+        OPNsense::default()
+    }
+
+    fn given_opnsense_with(haproxy: HAProxy) -> OPNsense {
+        let mut opnsense = OPNsense::default();
+        opnsense.opnsense.haproxy = Some(haproxy);
+
+        opnsense
+    }
+
+    fn given_load_balancer<'a>(opnsense: &'a mut OPNsense) -> LoadBalancerConfig<'a> {
+        let opnsense_shell = Arc::new(DummyOPNSenseShell {});
+        if opnsense.opnsense.haproxy.is_none() {
+            opnsense.opnsense.haproxy = Some(HAProxy::default());
+        }
+        LoadBalancerConfig::new(opnsense, opnsense_shell)
+    }
+
+    fn given_service(
+        bind_address: &str,
+        server_address: &str,
+    ) -> (
+        HAProxyHealthCheck,
+        Vec<HAProxyServer>,
+        HAProxyBackend,
+        Frontend,
+    ) {
+        let healthcheck = given_healthcheck();
+        let servers = vec![given_server(server_address)];
+        let backend = given_backend();
+        let frontend = given_frontend(bind_address);
+        (healthcheck, servers, backend, frontend)
+    }
+
+    fn given_haproxy(
+        frontends: Vec<Frontend>,
+        backends: Vec<HAProxyBackend>,
+        servers: Vec<HAProxyServer>,
+        healthchecks: Vec<HAProxyHealthCheck>,
+    ) -> HAProxy {
+        HAProxy {
+            frontends: HAProxyFrontends {
+                frontend: frontends,
+            },
+            backends: HAProxyBackends { backends },
+            servers: HAProxyServers { servers },
+            healthchecks: HAProxyHealthChecks { healthchecks },
+            ..Default::default()
+        }
+    }
+
+    fn given_frontend(bind_address: &str) -> Frontend {
+        Frontend {
+            uuid: "uuid".into(),
+            id: HAProxyId::default(),
+            enabled: 1,
+            name: format!("frontend_{bind_address}"),
+            bind: bind_address.into(),
+            default_backend: Some("backend-uuid".into()),
+            ..Default::default()
+        }
+    }
+
+    fn given_backend() -> HAProxyBackend {
+        HAProxyBackend {
+            uuid: "backend-uuid".into(),
+            id: HAProxyId::default(),
+            enabled: 1,
+            name: "backend_192.168.1.1:80".into(),
+            linked_servers: MaybeString::from("server-uuid"),
+            health_check_enabled: 1,
+            health_check: MaybeString::from("healthcheck-uuid"),
+            ..Default::default()
+        }
+    }
+
+    fn given_server(address: &str) -> HAProxyServer {
+        HAProxyServer {
+            uuid: "server-uuid".into(),
+            id: HAProxyId::default(),
+            name: address.into(),
+            address: Some(address.into()),
+            ..Default::default()
+        }
+    }
+
+    fn given_healthcheck() -> HAProxyHealthCheck {
+        HAProxyHealthCheck {
+            uuid: "healthcheck-uuid".into(),
+            name: "healthcheck".into(),
+            ..Default::default()
+        }
+    }
+}