sal/examples/kubernetes/namespace_management.rhai
Mahmoud-Emad 52f2f7e3c4 feat: Add Kubernetes module to SAL
- Add Kubernetes cluster management and operations
- Include pod, service, and deployment management
- Implement pattern-based resource deletion
- Support namespace creation and management
- Provide Rhai scripting wrappers for all functions
- Include production safety features (timeouts, retries, rate limiting)
2025-06-30 14:56:54 +03:00

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//! Kubernetes namespace management example
//!
//! This script demonstrates namespace creation and management operations.
//!
//! Prerequisites:
//! - A running Kubernetes cluster
//! - Valid kubeconfig file or in-cluster configuration
//! - Permissions to create and manage namespaces
//!
//! Usage:
//! herodo examples/kubernetes/namespace_management.rhai
print("=== SAL Kubernetes Namespace Management Example ===");
// Create a KubernetesManager
let km = kubernetes_manager_new("default");
print("Created KubernetesManager for namespace: " + namespace(km));
// Define test namespace names
let test_namespaces = [
"sal-test-namespace-1",
"sal-test-namespace-2",
"sal-example-app"
];
print("\n--- Creating Test Namespaces ---");
for ns in test_namespaces {
print("Creating namespace: " + ns);
try {
namespace_create(km, ns);
print("✓ Successfully created namespace: " + ns);
} catch(e) {
print("✗ Failed to create namespace " + ns + ": " + e);
}
}
// Wait a moment for namespaces to be created
print("\nWaiting for namespaces to be ready...");
// Verify namespaces were created
print("\n--- Verifying Namespace Creation ---");
for ns in test_namespaces {
let exists = namespace_exists(km, ns);
if exists {
print("✓ Namespace '" + ns + "' exists");
} else {
print("✗ Namespace '" + ns + "' was not found");
}
}
// List all namespaces to see our new ones
print("\n--- Current Namespaces ---");
let all_namespaces = namespaces_list(km);
print("Total namespaces in cluster: " + all_namespaces.len());
for ns in all_namespaces {
if ns.starts_with("sal-") {
print(" 🔹 " + ns + " (created by this example)");
} else {
print(" - " + ns);
}
}
// Test idempotent creation (creating the same namespace again)
print("\n--- Testing Idempotent Creation ---");
let test_ns = test_namespaces[0];
print("Attempting to create existing namespace: " + test_ns);
try {
namespace_create(km, test_ns);
print("✓ Idempotent creation successful (no error for existing namespace)");
} catch(e) {
print("✗ Unexpected error during idempotent creation: " + e);
}
// Create managers for the new namespaces and check their properties
print("\n--- Creating Managers for New Namespaces ---");
for ns in test_namespaces {
try {
let ns_km = kubernetes_manager_new(ns);
print("✓ Created manager for namespace: " + namespace(ns_km));
// Get resource counts for the new namespace (should be mostly empty)
let counts = resource_counts(ns_km);
print(" Resource counts: " + counts);
} catch(e) {
print("✗ Failed to create manager for " + ns + ": " + e);
}
}
print("\n--- Cleanup Instructions ---");
print("To clean up the test namespaces created by this example, run:");
for ns in test_namespaces {
print(" kubectl delete namespace " + ns);
}
print("\n=== Namespace management example completed! ===");