wip

examples/scripts/kubernetes/clusters/generic.rs

@@ -0,0 +1,134 @@
+//! Generic Application Deployment Example
+//!
+//! This example shows how to deploy any containerized application using the
+//! KubernetesManager convenience methods. This works for any Docker image.
+
+use sal_kubernetes::KubernetesManager;
+use std::collections::HashMap;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create Kubernetes manager
+    let km = KubernetesManager::new("default").await?;
+
+    // Clean up any existing resources first
+    println!("=== Cleaning up existing resources ===");
+    let apps_to_clean = ["web-server", "node-app", "mongodb"];
+
+    for app in &apps_to_clean {
+        match km.deployment_delete(app).await {
+            Ok(_) => println!("✓ Deleted existing deployment: {}", app),
+            Err(_) => println!("✓ No existing deployment to delete: {}", app),
+        }
+
+        match km.service_delete(app).await {
+            Ok(_) => println!("✓ Deleted existing service: {}", app),
+            Err(_) => println!("✓ No existing service to delete: {}", app),
+        }
+    }
+
+    // Example 1: Simple web server deployment
+    println!("\n=== Example 1: Simple Nginx Web Server ===");
+
+    km.deploy_application("web-server", "nginx:latest", 2, 80, None, None)
+        .await?;
+    println!("✅ Nginx web server deployed!");
+
+    // Example 2: Node.js application with labels
+    println!("\n=== Example 2: Node.js Application ===");
+
+    let mut node_labels = HashMap::new();
+    node_labels.insert("app".to_string(), "node-app".to_string());
+    node_labels.insert("tier".to_string(), "backend".to_string());
+    node_labels.insert("environment".to_string(), "production".to_string());
+
+    // Configure Node.js environment variables
+    let mut node_env_vars = HashMap::new();
+    node_env_vars.insert("NODE_ENV".to_string(), "production".to_string());
+    node_env_vars.insert("PORT".to_string(), "3000".to_string());
+    node_env_vars.insert("LOG_LEVEL".to_string(), "info".to_string());
+    node_env_vars.insert("MAX_CONNECTIONS".to_string(), "1000".to_string());
+
+    km.deploy_application(
+        "node-app",          // name
+        "node:18-alpine",    // image
+        3,                   // replicas - scale to 3 instances
+        3000,                // port
+        Some(node_labels),   // labels
+        Some(node_env_vars), // environment variables
+    )
+    .await?;
+
+    println!("✅ Node.js application deployed!");
+
+    // Example 3: Database deployment (any database)
+    println!("\n=== Example 3: MongoDB Database ===");
+
+    let mut mongo_labels = HashMap::new();
+    mongo_labels.insert("app".to_string(), "mongodb".to_string());
+    mongo_labels.insert("type".to_string(), "database".to_string());
+    mongo_labels.insert("engine".to_string(), "mongodb".to_string());
+
+    // Configure MongoDB environment variables
+    let mut mongo_env_vars = HashMap::new();
+    mongo_env_vars.insert(
+        "MONGO_INITDB_ROOT_USERNAME".to_string(),
+        "admin".to_string(),
+    );
+    mongo_env_vars.insert(
+        "MONGO_INITDB_ROOT_PASSWORD".to_string(),
+        "mongopassword".to_string(),
+    );
+    mongo_env_vars.insert("MONGO_INITDB_DATABASE".to_string(), "myapp".to_string());
+
+    km.deploy_application(
+        "mongodb",            // name
+        "mongo:6.0",          // image
+        1,                    // replicas - single instance for simplicity
+        27017,                // port
+        Some(mongo_labels),   // labels
+        Some(mongo_env_vars), // environment variables
+    )
+    .await?;
+
+    println!("✅ MongoDB deployed!");
+
+    // Check status of all deployments
+    println!("\n=== Checking Deployment Status ===");
+
+    let deployments = km.deployments_list().await?;
+
+    for deployment in &deployments {
+        if let Some(name) = &deployment.metadata.name {
+            let total_replicas = deployment
+                .spec
+                .as_ref()
+                .and_then(|s| s.replicas)
+                .unwrap_or(0);
+            let ready_replicas = deployment
+                .status
+                .as_ref()
+                .and_then(|s| s.ready_replicas)
+                .unwrap_or(0);
+
+            println!(
+                "{}: {}/{} replicas ready",
+                name, ready_replicas, total_replicas
+            );
+        }
+    }
+
+    println!("\n🎉 All deployments completed!");
+    println!("\n💡 Key Points:");
+    println!("  • Any Docker image can be deployed using this simple interface");
+    println!("  • Use labels to organize and identify your applications");
+    println!(
+        "  • The same method works for databases, web servers, APIs, and any containerized app"
+    );
+    println!("  • For advanced configuration, use the individual KubernetesManager methods");
+    println!(
+        "  • Environment variables and resource limits can be added via direct Kubernetes API"
+    );
+
+    Ok(())
+}