feat: Providing some clusters for kubernetes
This commit is contained in:
Mahmoud-Emad
97
examples/kubernetes/clusters/generic.rs
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97
examples/kubernetes/clusters/generic.rs
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@@ -0,0 +1,97 @@
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//! Generic Application Deployment Example
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//!
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//! This example shows how to deploy any containerized application using the
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//! KubernetesManager convenience methods. This works for any Docker image.
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use sal_kubernetes::KubernetesManager;
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use std::collections::HashMap;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Create Kubernetes manager
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let km = KubernetesManager::new("default").await?;
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// Example 1: Simple web server deployment
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println!("=== Example 1: Simple Nginx Web Server ===");
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km.deploy_application("web-server", "nginx:latest", 2, 80, None)
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.await?;
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println!("✅ Nginx web server deployed!");
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// Example 2: Node.js application with labels
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println!("\n=== Example 2: Node.js Application ===");
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let mut node_labels = HashMap::new();
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node_labels.insert("app".to_string(), "node-app".to_string());
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node_labels.insert("tier".to_string(), "backend".to_string());
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node_labels.insert("environment".to_string(), "production".to_string());
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km.deploy_application(
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"node-app", // name
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"node:18-alpine", // image
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3, // replicas - scale to 3 instances
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3000, // port
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Some(node_labels), // labels
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)
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.await?;
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println!("✅ Node.js application deployed!");
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// Example 3: Database deployment (any database)
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println!("\n=== Example 3: MongoDB Database ===");
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let mut mongo_labels = HashMap::new();
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mongo_labels.insert("app".to_string(), "mongodb".to_string());
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mongo_labels.insert("type".to_string(), "database".to_string());
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mongo_labels.insert("engine".to_string(), "mongodb".to_string());
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km.deploy_application(
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"mongodb", // name
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"mongo:6.0", // image
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1, // replicas - single instance for simplicity
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27017, // port
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Some(mongo_labels), // labels
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)
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.await?;
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println!("✅ MongoDB deployed!");
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// Check status of all deployments
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println!("\n=== Checking Deployment Status ===");
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let deployments = km.deployments_list().await?;
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for deployment in &deployments {
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if let Some(name) = &deployment.metadata.name {
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let total_replicas = deployment
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.spec
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.as_ref()
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.and_then(|s| s.replicas)
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.unwrap_or(0);
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let ready_replicas = deployment
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.status
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.as_ref()
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.and_then(|s| s.ready_replicas)
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.unwrap_or(0);
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println!(
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"{}: {}/{} replicas ready",
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name, ready_replicas, total_replicas
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);
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}
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}
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println!("\n🎉 All deployments completed!");
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println!("\n💡 Key Points:");
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println!(" • Any Docker image can be deployed using this simple interface");
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println!(" • Use labels to organize and identify your applications");
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println!(
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" • The same method works for databases, web servers, APIs, and any containerized app"
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);
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println!(" • For advanced configuration, use the individual KubernetesManager methods");
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println!(
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" • Environment variables and resource limits can be added via direct Kubernetes API"
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);
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Ok(())
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}
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45
examples/kubernetes/clusters/postgres.rhai
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45
examples/kubernetes/clusters/postgres.rhai
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@@ -0,0 +1,45 @@
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//! PostgreSQL Cluster Deployment Example (Rhai)
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//!
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//! This script shows how to deploy a PostgreSQL cluster using Rhai scripting
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//! with the KubernetesManager convenience methods.
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print("=== PostgreSQL Cluster Deployment ===");
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// Create Kubernetes manager for the database namespace
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print("Creating Kubernetes manager for 'database' namespace...");
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let km = kubernetes_manager_new("database");
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print("✓ Kubernetes manager created");
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// Create PostgreSQL cluster using the convenience method
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print("\nDeploying PostgreSQL cluster...");
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try {
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// Deploy PostgreSQL using the convenience method
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let result = deploy_application(km, "postgres-cluster", "postgres:15", 2, 5432, #{
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"app": "postgres-cluster",
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"type": "database",
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"engine": "postgresql"
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});
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print("✓ " + result);
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print("\n✅ PostgreSQL cluster deployed successfully!");
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print("\n📋 Connection Information:");
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print(" Host: postgres-cluster.database.svc.cluster.local");
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print(" Port: 5432");
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print(" Database: postgres (default)");
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print(" Username: postgres (default)");
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print("\n🔧 To connect from another pod:");
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print(" psql -h postgres-cluster.database.svc.cluster.local -U postgres");
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print("\n💡 Next steps:");
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print(" • Set POSTGRES_PASSWORD environment variable");
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print(" • Configure persistent storage");
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print(" • Set up backup and monitoring");
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} catch(e) {
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print("❌ Failed to deploy PostgreSQL cluster: " + e);
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}
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print("\n=== Deployment Complete ===");
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73
examples/kubernetes/clusters/postgres.rs
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73
examples/kubernetes/clusters/postgres.rs
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//! PostgreSQL Cluster Deployment Example
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//!
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//! This example shows how to deploy a PostgreSQL cluster using the
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//! KubernetesManager convenience methods.
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use sal_kubernetes::KubernetesManager;
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use std::collections::HashMap;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Create Kubernetes manager for the database namespace
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let km = KubernetesManager::new("database").await?;
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// Configure PostgreSQL-specific labels
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let mut labels = HashMap::new();
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labels.insert("app".to_string(), "postgres-cluster".to_string());
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labels.insert("type".to_string(), "database".to_string());
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labels.insert("engine".to_string(), "postgresql".to_string());
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// Deploy the PostgreSQL cluster using the convenience method
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println!("Deploying PostgreSQL cluster...");
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km.deploy_application(
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"postgres-cluster", // name
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"postgres:15", // image
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2, // replicas (1 master + 1 replica)
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5432, // port
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Some(labels), // labels
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)
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.await?;
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println!("✅ PostgreSQL cluster deployed successfully!");
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// Check deployment status
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let deployments = km.deployments_list().await?;
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let postgres_deployment = deployments
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.iter()
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.find(|d| d.metadata.name.as_ref() == Some(&"postgres-cluster".to_string()));
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if let Some(deployment) = postgres_deployment {
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let total_replicas = deployment
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.spec
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.as_ref()
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.and_then(|s| s.replicas)
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.unwrap_or(0);
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let ready_replicas = deployment
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.status
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.as_ref()
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.and_then(|s| s.ready_replicas)
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.unwrap_or(0);
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println!(
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"Deployment status: {}/{} replicas ready",
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ready_replicas, total_replicas
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);
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}
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println!("\n📋 Connection Information:");
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println!(" Host: postgres-cluster.database.svc.cluster.local");
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println!(" Port: 5432");
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println!(" Database: postgres (default)");
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println!(" Username: postgres (default)");
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println!(" Password: Set POSTGRES_PASSWORD environment variable");
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println!("\n🔧 To connect from another pod:");
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println!(" psql -h postgres-cluster.database.svc.cluster.local -U postgres");
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println!("\n💡 Next steps:");
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println!(" • Set environment variables for database credentials");
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println!(" • Add persistent volume claims for data storage");
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println!(" • Configure backup and monitoring");
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Ok(())
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}
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44
examples/kubernetes/clusters/redis.rhai
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44
examples/kubernetes/clusters/redis.rhai
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@@ -0,0 +1,44 @@
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//! Redis Cluster Deployment Example (Rhai)
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//!
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//! This script shows how to deploy a Redis cluster using Rhai scripting
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//! with the KubernetesManager convenience methods.
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print("=== Redis Cluster Deployment ===");
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// Create Kubernetes manager for the cache namespace
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print("Creating Kubernetes manager for 'cache' namespace...");
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let km = kubernetes_manager_new("cache");
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print("✓ Kubernetes manager created");
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// Create Redis cluster using the convenience method
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print("\nDeploying Redis cluster...");
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try {
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// Deploy Redis using the convenience method
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let result = deploy_application(km, "redis-cluster", "redis:7-alpine", 3, 6379, #{
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"app": "redis-cluster",
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"type": "cache",
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"engine": "redis"
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});
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print("✓ " + result);
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print("\n✅ Redis cluster deployed successfully!");
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print("\n📋 Connection Information:");
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print(" Host: redis-cluster.cache.svc.cluster.local");
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print(" Port: 6379");
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print("\n🔧 To connect from another pod:");
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print(" redis-cli -h redis-cluster.cache.svc.cluster.local");
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print("\n💡 Next steps:");
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print(" • Configure Redis authentication");
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print(" • Set up Redis clustering configuration");
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print(" • Add persistent storage");
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print(" • Configure memory policies");
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} catch(e) {
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print("❌ Failed to deploy Redis cluster: " + e);
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}
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print("\n=== Deployment Complete ===");
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72
examples/kubernetes/clusters/redis.rs
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72
examples/kubernetes/clusters/redis.rs
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@@ -0,0 +1,72 @@
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//! Redis Cluster Deployment Example
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//!
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//! This example shows how to deploy a Redis cluster using the
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//! KubernetesManager convenience methods.
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use sal_kubernetes::KubernetesManager;
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use std::collections::HashMap;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Create Kubernetes manager for the cache namespace
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let km = KubernetesManager::new("cache").await?;
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// Configure Redis-specific labels
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let mut labels = HashMap::new();
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labels.insert("app".to_string(), "redis-cluster".to_string());
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labels.insert("type".to_string(), "cache".to_string());
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labels.insert("engine".to_string(), "redis".to_string());
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// Deploy the Redis cluster using the convenience method
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println!("Deploying Redis cluster...");
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km.deploy_application(
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"redis-cluster", // name
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"redis:7-alpine", // image
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3, // replicas (Redis cluster nodes)
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6379, // port
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Some(labels), // labels
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)
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.await?;
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println!("✅ Redis cluster deployed successfully!");
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// Check deployment status
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let deployments = km.deployments_list().await?;
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let redis_deployment = deployments
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.iter()
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.find(|d| d.metadata.name.as_ref() == Some(&"redis-cluster".to_string()));
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if let Some(deployment) = redis_deployment {
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let total_replicas = deployment
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.spec
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.as_ref()
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.and_then(|s| s.replicas)
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.unwrap_or(0);
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let ready_replicas = deployment
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.status
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.as_ref()
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.and_then(|s| s.ready_replicas)
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.unwrap_or(0);
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println!(
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"Deployment status: {}/{} replicas ready",
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ready_replicas, total_replicas
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);
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}
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println!("\n📋 Connection Information:");
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println!(" Host: redis-cluster.cache.svc.cluster.local");
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println!(" Port: 6379");
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println!(" Password: Configure REDIS_PASSWORD environment variable");
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println!("\n🔧 To connect from another pod:");
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println!(" redis-cli -h redis-cluster.cache.svc.cluster.local");
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println!("\n💡 Next steps:");
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println!(" • Configure Redis authentication with environment variables");
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println!(" • Set up Redis clustering configuration");
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println!(" • Add persistent volume claims for data persistence");
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println!(" • Configure memory limits and eviction policies");
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Ok(())
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}
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