feat: Inventory PhysicalHost persistence with sqlx and local sqlite db

.sqlx/query-934035c7ca6e064815393e4e049a7934b0a7fac04a4fe4b2a354f0443d630990.json

@@ -0,0 +1,32 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT id, version_id, data as \"data: Json<PhysicalHost>\" FROM physical_hosts WHERE id = ? ORDER BY version_id DESC LIMIT 1",
+  "describe": {
+    "columns": [
+      {
+        "name": "id",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "version_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "data: Json<PhysicalHost>",
+        "ordinal": 2,
+        "type_info": "Null"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "934035c7ca6e064815393e4e049a7934b0a7fac04a4fe4b2a354f0443d630990"
+}

.sqlx/query-f10f615ee42129ffa293e46f2f893d65a237d31d24b74a29c6a8d8420d255ab8.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO physical_hosts (id, version_id, data) VALUES (?, ?, ?)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": []
+  },
+  "hash": "f10f615ee42129ffa293e46f2f893d65a237d31d24b74a29c6a8d8420d255ab8"
+}

Cargo.lock

@@ -474,6 +474,15 @@ dependencies = [
  "syn 2.0.105",
 ]
 
+[[package]]
+name = "atoi"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f28d99ec8bfea296261ca1af174f24225171fea9664ba9003cbebee704810528"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -1052,6 +1061,21 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crc"
+version = "3.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9710d3b3739c2e349eb44fe848ad0b7c8cb1e42bd87ee49371df2f7acaf3e675"
+dependencies = [
+ "crc-catalog",
+]
+
+[[package]]
+name = "crc-catalog"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
+
 [[package]]
 name = "crc32fast"
 version = "1.4.2"
@@ -1089,6 +1113,15 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f58bbc28f91df819d0aa2a2c00cd19754769c2fad90579b3592b1c9ba7a3115"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.21"
@@ -1409,6 +1442,12 @@ dependencies = [
  "syn 2.0.105",
 ]
 
+[[package]]
+name = "dotenvy"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
+
 [[package]]
 name = "dyn-clone"
 version = "1.0.19"
@@ -1471,6 +1510,9 @@ name = "either"
 version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "elliptic-curve"
@@ -1586,6 +1628,17 @@ dependencies = [
  "windows-sys 0.60.2",
 ]
 
+[[package]]
+name = "etcetera"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "136d1b5283a1ab77bd9257427ffd09d8667ced0570b6f938942bc7568ed5b943"
+dependencies = [
+ "cfg-if",
+ "home",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "event-listener"
 version = "5.4.0"
@@ -1984,6 +2037,17 @@ dependencies = [
  "futures-util",
 ]
 
+[[package]]
+name = "futures-intrusive"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d930c203dd0b6ff06e0201a4a2fe9149b43c684fd4420555b26d21b1a02956f"
+dependencies = [
+ "futures-core",
+ "lock_api",
+ "parking_lot",
+]
+
 [[package]]
 name = "futures-io"
 version = "0.3.31"
@@ -2241,11 +2305,13 @@ dependencies = [
  "serde_with",
  "serde_yaml",
  "similar",
+ "sqlx",
  "strum 0.27.1",
  "tar",
  "temp-dir",
  "temp-file",
  "tempfile",
+ "thiserror 2.0.14",
  "tokio",
  "tokio-util",
  "url",
@@ -2391,6 +2457,15 @@ dependencies = [
  "foldhash",
 ]
 
+[[package]]
+name = "hashlink"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
+dependencies = [
+ "hashbrown 0.15.4",
+]
+
 [[package]]
 name = "headers"
 version = "0.4.1"
@@ -2960,7 +3035,7 @@ checksum = "f4c7245a08504955605670dbf141fceab975f15ca21570696aebe9d2e71576bd"
 [[package]]
 name = "infisical"
 version = "0.0.2"
-source = "git+https://github.com/jggc/rust-sdk.git?branch=patch-1#5a8509ef5483a5798c5d1a7f7ebeb5ba5b783253"
+source = "git+https://github.com/jggc/rust-sdk.git?branch=patch-1#30d820194d29491411bd14f6c2e18ec500bb0b14"
 dependencies = [
  "base64 0.22.1",
  "reqwest 0.12.20",
@@ -3333,6 +3408,17 @@ dependencies = [
  "redox_syscall",
 ]
 
+[[package]]
+name = "libsqlite3-sys"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e99fb7a497b1e3339bc746195567ed8d3e24945ecd636e3619d20b9de9e9149"
+dependencies = [
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.15"
@@ -3429,6 +3515,16 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
 
+[[package]]
+name = "md-5"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
+dependencies = [
+ "cfg-if",
+ "digest",
+]
+
 [[package]]
 name = "md5"
 version = "0.7.0"
@@ -5280,6 +5376,9 @@ name = "smallvec"
 version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "snafu"
@@ -5352,6 +5451,194 @@ dependencies = [
  "der",
 ]
 
+[[package]]
+name = "sqlx"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fefb893899429669dcdd979aff487bd78f4064e5e7907e4269081e0ef7d97dc"
+dependencies = [
+ "sqlx-core",
+ "sqlx-macros",
+ "sqlx-mysql",
+ "sqlx-postgres",
+ "sqlx-sqlite",
+]
+
+[[package]]
+name = "sqlx-core"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee6798b1838b6a0f69c007c133b8df5866302197e404e8b6ee8ed3e3a5e68dc6"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "crc",
+ "crossbeam-queue",
+ "either",
+ "event-listener",
+ "futures-core",
+ "futures-intrusive",
+ "futures-io",
+ "futures-util",
+ "hashbrown 0.15.4",
+ "hashlink",
+ "indexmap 2.10.0",
+ "log",
+ "memchr",
+ "once_cell",
+ "percent-encoding",
+ "serde",
+ "serde_json",
+ "sha2",
+ "smallvec",
+ "thiserror 2.0.14",
+ "tokio",
+ "tokio-stream",
+ "tracing",
+ "url",
+]
+
+[[package]]
+name = "sqlx-macros"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2d452988ccaacfbf5e0bdbc348fb91d7c8af5bee192173ac3636b5fb6e6715d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "sqlx-core",
+ "sqlx-macros-core",
+ "syn 2.0.105",
+]
+
+[[package]]
+name = "sqlx-macros-core"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19a9c1841124ac5a61741f96e1d9e2ec77424bf323962dd894bdb93f37d5219b"
+dependencies = [
+ "dotenvy",
+ "either",
+ "heck",
+ "hex",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_json",
+ "sha2",
+ "sqlx-core",
+ "sqlx-mysql",
+ "sqlx-postgres",
+ "sqlx-sqlite",
+ "syn 2.0.105",
+ "tokio",
+ "url",
+]
+
+[[package]]
+name = "sqlx-mysql"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa003f0038df784eb8fecbbac13affe3da23b45194bd57dba231c8f48199c526"
+dependencies = [
+ "atoi",
+ "base64 0.22.1",
+ "bitflags 2.9.1",
+ "byteorder",
+ "bytes",
+ "crc",
+ "digest",
+ "dotenvy",
+ "either",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-util",
+ "generic-array",
+ "hex",
+ "hkdf",
+ "hmac",
+ "itoa",
+ "log",
+ "md-5",
+ "memchr",
+ "once_cell",
+ "percent-encoding",
+ "rand 0.8.5",
+ "rsa",
+ "serde",
+ "sha1",
+ "sha2",
+ "smallvec",
+ "sqlx-core",
+ "stringprep",
+ "thiserror 2.0.14",
+ "tracing",
+ "whoami",
+]
+
+[[package]]
+name = "sqlx-postgres"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db58fcd5a53cf07c184b154801ff91347e4c30d17a3562a635ff028ad5deda46"
+dependencies = [
+ "atoi",
+ "base64 0.22.1",
+ "bitflags 2.9.1",
+ "byteorder",
+ "crc",
+ "dotenvy",
+ "etcetera",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "hex",
+ "hkdf",
+ "hmac",
+ "home",
+ "itoa",
+ "log",
+ "md-5",
+ "memchr",
+ "once_cell",
+ "rand 0.8.5",
+ "serde",
+ "serde_json",
+ "sha2",
+ "smallvec",
+ "sqlx-core",
+ "stringprep",
+ "thiserror 2.0.14",
+ "tracing",
+ "whoami",
+]
+
+[[package]]
+name = "sqlx-sqlite"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2d12fe70b2c1b4401038055f90f151b78208de1f9f89a7dbfd41587a10c3eea"
+dependencies = [
+ "atoi",
+ "flume",
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-intrusive",
+ "futures-util",
+ "libsqlite3-sys",
+ "log",
+ "percent-encoding",
+ "serde",
+ "serde_urlencoded",
+ "sqlx-core",
+ "thiserror 2.0.14",
+ "tracing",
+ "url",
+]
+
 [[package]]
 name = "ssh-cipher"
 version = "0.2.0"
@@ -5415,6 +5702,17 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "stringprep"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b4df3d392d81bd458a8a621b8bffbd2302a12ffe288a9d931670948749463b1"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+ "unicode-properties",
+]
+
 [[package]]
 name = "strsim"
 version = "0.11.1"
@@ -6018,12 +6316,33 @@ version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2896d95c02a80c6d6a5d6e953d479f5ddf2dfdb6a244441010e373ac0fb88971"
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
+name = "unicode-properties"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e70f2a8b45122e719eb623c01822704c4e0907e7e426a05927e1a1cfff5b75d0"
+
 [[package]]
 name = "unicode-segmentation"
 version = "1.12.0"
@@ -6147,6 +6466,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
@@ -6186,6 +6511,12 @@ dependencies = [
  "wit-bindgen-rt",
 ]
 
+[[package]]
+name = "wasite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.100"
@@ -6306,6 +6637,16 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "whoami"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d4a4db5077702ca3015d3d02d74974948aba2ad9e12ab7df718ee64ccd7e97d"
+dependencies = [
+ "libredox",
+ "wasite",
+]
+
 [[package]]
 name = "winapi"
 version = "0.2.8"

Cargo.toml

@@ -65,3 +65,5 @@ directories = "6.0.0"
 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" ] }

harmony/Cargo.toml

@@ -65,10 +65,12 @@ kube-derive = "1.1.0"
 bollard.workspace = true
 tar.workspace = true
 base64.workspace = true
+thiserror.workspace = true
 once_cell = "1.21.3"
 harmony_inventory_agent = { path = "../harmony_inventory_agent" }
 harmony_secret_derive = { version = "0.1.0", path = "../harmony_secret_derive" }
-askama = "0.14.0"
+askama.workspace = true
+sqlx.workspace = true
 
 [dev-dependencies]
 pretty_assertions.workspace = true

harmony/src/domain/data/id.rs

@@ -24,6 +24,14 @@ pub struct Id {
     value: String,
 }
 
+impl Id {
+    pub fn empty() -> Self {
+        Id {
+            value: String::new(),
+        }
+    }
+}
+
 impl FromStr for Id {
     type Err = ();
 
@@ -34,6 +42,12 @@ impl FromStr for Id {
     }
 }
 
+impl From<String> for Id {
+    fn from(value: String) -> Self {
+        Self { value }
+    }
+}
+
 impl std::fmt::Display for Id {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.write_str(&self.value)

harmony/src/domain/hardware/mod.rs

@@ -1,8 +1,8 @@
-use std::sync::Arc;
+use std::{str::FromStr, sync::Arc};
 
 use derive_new::new;
 use harmony_types::net::MacAddress;
-use serde::{Serialize, Serializer, ser::SerializeStruct};
+use serde::{Deserialize, Serialize, Serializer, ser::SerializeStruct};
 use serde_value::Value;
 
 pub type HostGroup = Vec<PhysicalHost>;
@@ -11,6 +11,7 @@ pub type FirewallGroup = Vec<PhysicalHost>;
 
 #[derive(Debug, Clone)]
 pub struct PhysicalHost {
+    pub id: Id,
     pub category: HostCategory,
     pub network: Vec<NetworkInterface>,
     pub management: Arc<dyn ManagementInterface>,
@@ -23,6 +24,7 @@ pub struct PhysicalHost {
 impl PhysicalHost {
     pub fn empty(category: HostCategory) -> Self {
         Self {
+            id: Id::empty(),
             category,
             network: vec![],
             storage: vec![],
@@ -128,6 +130,15 @@ impl Serialize for PhysicalHost {
     }
 }
 
+impl<'de> Deserialize<'de> for PhysicalHost {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        todo!()
+    }
+}
+
 #[derive(new, Serialize)]
 pub struct ManualManagementInterface;
 
@@ -187,6 +198,8 @@ pub struct NetworkInterface {
 
 #[cfg(test)]
 use harmony_macros::mac_address;
+
+use crate::data::Id;
 #[cfg(test)]
 impl NetworkInterface {
     pub fn dummy() -> Self {
@@ -304,6 +317,7 @@ mod tests {
     fn test_serialize_physical_host_with_hp_ilo() {
         // Create a PhysicalHost with HP iLO management
         let host = PhysicalHost {
+            id: Id::empty(),
             category: HostCategory::Server,
             network: vec![NetworkInterface::dummy()],
             management: Arc::new(MockHPIlo {
@@ -341,6 +355,7 @@ mod tests {
     fn test_serialize_physical_host_with_dell_idrac() {
         // Create a PhysicalHost with Dell iDRAC management
         let host = PhysicalHost {
+            id: Id::empty(),
             category: HostCategory::Server,
             network: vec![NetworkInterface::dummy()],
             management: Arc::new(MockDellIdrac {
@@ -375,6 +390,7 @@ mod tests {
     fn test_different_management_implementations_produce_valid_json() {
         // Create hosts with different management implementations
         let host1 = PhysicalHost {
+            id: Id::empty(),
             category: HostCategory::Server,
             network: vec![],
             management: Arc::new(MockHPIlo {
@@ -390,6 +406,7 @@ mod tests {
         };
 
         let host2 = PhysicalHost {
+            id: Id::empty(),
             category: HostCategory::Server,
             network: vec![],
             management: Arc::new(MockDellIdrac {

harmony/src/domain/inventory/mod.rs

@@ -1,3 +1,6 @@
+mod repository;
+pub use repository::*;
+
 #[derive(Debug, new, Clone)]
 pub struct InventoryFilter {
     target: Vec<Filter>,

harmony/src/domain/inventory/repository.rs

@@ -0,0 +1,25 @@
+use async_trait::async_trait;
+
+use crate::hardware::PhysicalHost;
+
+/// Errors that can occur within the repository layer.
+#[derive(thiserror::Error, Debug)]
+pub enum RepoError {
+    #[error("Database query failed: {0}")]
+    QueryFailed(String),
+    #[error("Data serialization failed: {0}")]
+    Serialization(String),
+    #[error("Data deserialization failed: {0}")]
+    Deserialization(String),
+    #[error("Could not connect to the database: {0}")]
+    ConnectionFailed(String),
+}
+
+// --- Trait and Implementation ---
+
+/// Defines the contract for inventory persistence.
+#[async_trait]
+pub trait InventoryRepository: Send + Sync + 'static {
+    async fn save(&self, host: &PhysicalHost) -> Result<(), RepoError>;
+    async fn get_latest_by_id(&self, host_id: &str) -> Result<Option<PhysicalHost>, RepoError>;
+}

harmony/src/infra/inventory/mod.rs

@@ -0,0 +1 @@
+mod sqlite;

harmony/src/infra/inventory/sqlite.rs

@@ -0,0 +1,69 @@
+use crate::{
+    data::Id,
+    hardware::PhysicalHost,
+    inventory::{InventoryRepository, RepoError},
+};
+use async_trait::async_trait;
+use log::{info, warn};
+use sqlx::{Pool, Sqlite, SqlitePool};
+
+/// A thread-safe, connection-pooled repository using SQLite.
+#[derive(Debug)]
+pub struct SqliteInventoryRepository {
+    pool: Pool<Sqlite>,
+}
+
+impl SqliteInventoryRepository {
+    pub async fn new(database_url: &str) -> Result<Self, RepoError> {
+        let pool = SqlitePool::connect(database_url)
+            .await
+            .map_err(|e| RepoError::ConnectionFailed(e.to_string()))?;
+
+        todo!("make sure migrations are up to date");
+        info!(
+            "SQLite inventory repository initialized at '{}'",
+            database_url,
+        );
+        Ok(Self { pool })
+    }
+}
+
+#[async_trait]
+impl InventoryRepository for SqliteInventoryRepository {
+    async fn save(&self, host: &PhysicalHost) -> Result<(), RepoError> {
+        let data = serde_json::to_vec(host).map_err(|e| RepoError::Serialization(e.to_string()))?;
+
+        let id = Id::default().to_string();
+        let host_id = host.id.to_string();
+
+        sqlx::query!(
+            "INSERT INTO physical_hosts (id, version_id, data) VALUES (?, ?, ?)",
+            host_id,
+            id,
+            data,
+        )
+        .execute(&self.pool)
+        .await?;
+
+        info!("Saved new inventory version for host '{}'", host.id);
+        Ok(())
+    }
+
+    async fn get_latest_by_id(&self, host_id: &str) -> Result<Option<PhysicalHost>, RepoError> {
+        let row = sqlx::query_as!(
+            DbHost,
+            r#"SELECT id, version_id, data as "data: Json<PhysicalHost>" FROM physical_hosts WHERE id = ? ORDER BY version_id DESC LIMIT 1"#,
+            host_id
+        )
+        .fetch_optional(&self.pool)
+        .await?;
+        todo!()
+    }
+}
+
+use sqlx::types::Json;
+struct DbHost {
+    data: Json<PhysicalHost>,
+    id: Id,
+    version_id: Id,
+}

harmony/src/infra/mod.rs

@@ -1,4 +1,6 @@
 pub mod executors;
 pub mod hp_ilo;
 pub mod intel_amt;
+pub mod inventory;
 pub mod opnsense;
+mod sqlx;

harmony/src/infra/sqlx.rs

@@ -0,0 +1,36 @@
+use crate::inventory::RepoError;
+
+impl From<sqlx::Error> for RepoError {
+    fn from(value: sqlx::Error) -> Self {
+        match value {
+            sqlx::Error::Configuration(_)
+            | sqlx::Error::Io(_)
+            | sqlx::Error::Tls(_)
+            | sqlx::Error::Protocol(_)
+            | sqlx::Error::PoolTimedOut
+            | sqlx::Error::PoolClosed
+            | sqlx::Error::WorkerCrashed => RepoError::ConnectionFailed(value.to_string()),
+            sqlx::Error::InvalidArgument(_)
+            | sqlx::Error::Database(_)
+            | sqlx::Error::RowNotFound
+            | sqlx::Error::TypeNotFound { .. }
+            | sqlx::Error::ColumnIndexOutOfBounds { .. }
+            | sqlx::Error::ColumnNotFound(_)
+            | sqlx::Error::AnyDriverError(_)
+            | sqlx::Error::Migrate(_)
+            | sqlx::Error::InvalidSavePointStatement
+            | sqlx::Error::BeginFailed => RepoError::QueryFailed(value.to_string()),
+            sqlx::Error::Encode(_) => RepoError::Serialization(value.to_string()),
+            sqlx::Error::Decode(_) | sqlx::Error::ColumnDecode { .. } => {
+                RepoError::Deserialization(value.to_string())
+            }
+            _ => RepoError::QueryFailed(value.to_string()),
+        }
+    }
+}
+
+impl From<serde_json::Error> for RepoError {
+    fn from(value: serde_json::Error) -> Self {
+        RepoError::Serialization(value.to_string())
+    }
+}