fn main() { // Create various topologies let okd_topology = OKDHaClusterTopology::new(); let k3d_topology = K3DTopology::new(); let linux_topology = LinuxTopology::new(); // Create scores let lamp_score = LAMPScore::new("MySQL 8.0", "PHP 8.1", "Apache 2.4"); let binary_score = BinaryScore::new("https://example.com/binary", vec!["--arg1", "--arg2"]); let load_balancer_score = LoadBalancerScore::new(vec!["service1", "service2"], 80); // Example 1: Running LAMP stack on OKD println!("\n=== Deploying LAMP stack on OKD cluster ==="); lamp_score.execute(&okd_topology); // Example 2: Running LAMP stack on K3D println!("\n=== Deploying LAMP stack on K3D cluster ==="); lamp_score.execute(&k3d_topology); // Example 3: Running binary on Linux host println!("\n=== Running binary on Linux host ==="); binary_score.execute(&linux_topology); // Example 4: Running binary on OKD (which can also run Linux commands) println!("\n=== Running binary on OKD host ==="); binary_score.execute(&okd_topology); // Example 5: Load balancer configuration on OKD println!("\n=== Configuring load balancer on OKD ==="); load_balancer_score.execute(&okd_topology); // The following would not compile: // load_balancer_score.execute(&k3d_topology); // K3D doesn't implement LoadBalancerCapability // lamp_score.execute(&linux_topology); // Linux doesn't implement K8sCapability } // Base Topology trait trait Topology { fn name(&self) -> &str; } // Define capabilities trait K8sCapability { fn deploy_k8s_resource(&self, resource_yaml: &str); fn execute_kubectl(&self, command: &str) -> String; } trait OKDCapability: K8sCapability { fn execute_oc(&self, command: &str) -> String; } trait LinuxCapability { fn execute_command(&self, command: &str, args: &[&str]) -> String; fn download_file(&self, url: &str, destination: &str) -> Result<(), String>; } trait LoadBalancerCapability { fn configure_load_balancer(&self, services: &[&str], port: u16); fn get_load_balancer_status(&self) -> String; } trait FirewallCapability { fn open_port(&self, port: u16, protocol: &str); fn close_port(&self, port: u16, protocol: &str); } trait RouterCapability { fn configure_route(&self, service: &str, hostname: &str); } // Topology implementations struct OKDHaClusterTopology { cluster_name: String, } impl OKDHaClusterTopology { fn new() -> Self { Self { cluster_name: "okd-ha-cluster".to_string(), } } } impl Topology for OKDHaClusterTopology { fn name(&self) -> &str { &self.cluster_name } } impl K8sCapability for OKDHaClusterTopology { fn deploy_k8s_resource(&self, resource_yaml: &str) { println!("Deploying K8s resource on OKD cluster: {}", resource_yaml); } fn execute_kubectl(&self, command: &str) -> String { println!("Executing kubectl command on OKD cluster: {}", command); "kubectl command output".to_string() } } impl OKDCapability for OKDHaClusterTopology { fn execute_oc(&self, command: &str) -> String { println!("Executing oc command on OKD cluster: {}", command); "oc command output".to_string() } } impl LinuxCapability for OKDHaClusterTopology { fn execute_command(&self, command: &str, args: &[&str]) -> String { println!( "Executing command '{}' with args {:?} on OKD node", command, args ); todo!() } fn download_file(&self, url: &str, destination: &str) -> Result<(), String> { println!( "Downloading file from {} to {} on OKD node", url, destination ); Ok(()) } } impl LoadBalancerCapability for OKDHaClusterTopology { fn configure_load_balancer(&self, services: &[&str], port: u16) { println!( "Configuring load balancer for services {:?} on port {} in OKD", services, port ); } fn get_load_balancer_status(&self) -> String { "OKD Load Balancer: HEALTHY".to_string() } } impl FirewallCapability for OKDHaClusterTopology { fn open_port(&self, port: u16, protocol: &str) { println!( "Opening port {} with protocol {} on OKD firewall", port, protocol ); } fn close_port(&self, port: u16, protocol: &str) { println!( "Closing port {} with protocol {} on OKD firewall", port, protocol ); } } impl RouterCapability for OKDHaClusterTopology { fn configure_route(&self, service: &str, hostname: &str) { println!( "Configuring route for service {} with hostname {} on OKD", service, hostname ); } } struct K3DTopology { cluster_name: String, } impl K3DTopology { fn new() -> Self { Self { cluster_name: "k3d-local".to_string(), } } } impl Topology for K3DTopology { fn name(&self) -> &str { &self.cluster_name } } impl K8sCapability for K3DTopology { fn deploy_k8s_resource(&self, resource_yaml: &str) { println!("Deploying K8s resource on K3D cluster: {}", resource_yaml); } fn execute_kubectl(&self, command: &str) -> String { println!("Executing kubectl command on K3D cluster: {}", command); "kubectl command output from K3D".to_string() } } struct LinuxTopology { hostname: String, } impl LinuxTopology { fn new() -> Self { Self { hostname: "linux-host".to_string(), } } } impl Topology for LinuxTopology { fn name(&self) -> &str { &self.hostname } } impl LinuxCapability for LinuxTopology { fn execute_command(&self, command: &str, args: &[&str]) -> String { println!( "Executing command '{}' with args {:?} on Linux host", command, args ); todo!() } fn download_file(&self, url: &str, destination: &str) -> Result<(), String> { println!( "Downloading file from {} to {} on Linux host", url, destination ); Ok(()) } } // Score implementations struct LAMPScore { mysql_version: String, php_version: String, apache_version: String, } impl LAMPScore { fn new(mysql_version: &str, php_version: &str, apache_version: &str) -> Self { Self { mysql_version: mysql_version.to_string(), php_version: php_version.to_string(), apache_version: apache_version.to_string(), } } fn execute(&self, topology: &T) { // Deploy MySQL topology.deploy_k8s_resource("mysql-deployment.yaml"); // Deploy PHP topology.deploy_k8s_resource("php-deployment.yaml"); // Deploy Apache topology.deploy_k8s_resource("apache-deployment.yaml"); // Create service topology.deploy_k8s_resource("lamp-service.yaml"); // Check deployment let status = topology.execute_kubectl("get pods -l app=lamp"); println!("LAMP deployment status: {}", status); } } struct BinaryScore { url: String, args: Vec, } impl BinaryScore { fn new(url: &str, args: Vec<&str>) -> Self { Self { url: url.to_string(), args: args.iter().map(|s| s.to_string()).collect(), } } fn execute(&self, topology: &T) { let destination = "/tmp/binary"; match topology.download_file(&self.url, destination) { Ok(_) => { println!("Binary downloaded successfully"); // Convert args to slice of &str let args: Vec<&str> = self.args.iter().map(|s| s.as_str()).collect(); // Execute the binary topology.execute_command(destination, &args); println!("Binary execution completed"); } Err(e) => { println!("Failed to download binary: {}", e); } } } } struct LoadBalancerScore { services: Vec, port: u16, } impl LoadBalancerScore { fn new(services: Vec<&str>, port: u16) -> Self { Self { services: services.iter().map(|s| s.to_string()).collect(), port, } } fn execute(&self, topology: &T) { println!("Configuring load balancer for services"); // Convert services to slice of &str let services: Vec<&str> = self.services.iter().map(|s| s.as_str()).collect(); // Configure load balancer topology.configure_load_balancer(&services, self.port); // Check status let status = topology.get_load_balancer_status(); println!("Load balancer status: {}", status); } }