wip

examples/scripts/kubernetes/clusters/postgres.rhai

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+//! PostgreSQL Cluster Deployment Example (Rhai)
+//!
+//! This script shows how to deploy a PostgreSQL cluster using Rhai scripting
+//! with the KubernetesManager convenience methods.
+
+print("=== PostgreSQL Cluster Deployment ===");
+
+// Create Kubernetes manager for the database namespace
+print("Creating Kubernetes manager for 'database' namespace...");
+let km = kubernetes_manager_new("database");
+print("✓ Kubernetes manager created");
+
+// Create the namespace if it doesn't exist
+print("Creating namespace 'database' if it doesn't exist...");
+try {
+    create_namespace(km, "database");
+    print("✓ Namespace 'database' created");
+} catch(e) {
+    if e.to_string().contains("already exists") {
+        print("✓ Namespace 'database' already exists");
+    } else {
+        print("⚠️ Warning: " + e);
+    }
+}
+
+// Clean up any existing resources first
+print("\nCleaning up any existing PostgreSQL resources...");
+try {
+    delete_deployment(km, "postgres-cluster");
+    print("✓ Deleted existing deployment");
+} catch(e) {
+    print("✓ No existing deployment to delete");
+}
+
+try {
+    delete_service(km, "postgres-cluster");
+    print("✓ Deleted existing service");
+} catch(e) {
+    print("✓ No existing service to delete");
+}
+
+// Create PostgreSQL cluster using the convenience method
+print("\nDeploying PostgreSQL cluster...");
+
+try {
+    // Deploy PostgreSQL using the convenience method
+    let result = deploy_application(km, "postgres-cluster", "postgres:15", 2, 5432, #{
+        "app": "postgres-cluster",
+        "type": "database",
+        "engine": "postgresql"
+    }, #{
+        "POSTGRES_DB": "myapp",
+        "POSTGRES_USER": "postgres",
+        "POSTGRES_PASSWORD": "secretpassword",
+        "PGDATA": "/var/lib/postgresql/data/pgdata"
+    });
+    print("✓ " + result);
+
+    print("\n✅ PostgreSQL cluster deployed successfully!");
+
+    print("\n📋 Connection Information:");
+    print("  Host: postgres-cluster.database.svc.cluster.local");
+    print("  Port: 5432");
+    print("  Database: postgres (default)");
+    print("  Username: postgres (default)");
+
+    print("\n🔧 To connect from another pod:");
+    print("  psql -h postgres-cluster.database.svc.cluster.local -U postgres");
+
+    print("\n💡 Next steps:");
+    print("  • Set POSTGRES_PASSWORD environment variable");
+    print("  • Configure persistent storage");
+    print("  • Set up backup and monitoring");
+
+} catch(e) {
+    print("❌ Failed to deploy PostgreSQL cluster: " + e);
+}
+
+print("\n=== Deployment Complete ===");