wip

examples/scripts/kubernetes/clusters/redis.rs

@@ -0,0 +1,109 @@
+//! Redis Cluster Deployment Example
+//!
+//! This example shows how to deploy a Redis cluster using the
+//! KubernetesManager convenience methods.
+
+use sal_kubernetes::KubernetesManager;
+use std::collections::HashMap;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create Kubernetes manager for the cache namespace
+    let km = KubernetesManager::new("cache").await?;
+
+    // Create the namespace if it doesn't exist
+    println!("Creating namespace 'cache' if it doesn't exist...");
+    match km.namespace_create("cache").await {
+        Ok(_) => println!("✓ Namespace 'cache' created"),
+        Err(e) => {
+            if e.to_string().contains("already exists") {
+                println!("✓ Namespace 'cache' already exists");
+            } else {
+                return Err(e.into());
+            }
+        }
+    }
+
+    // Clean up any existing resources first
+    println!("Cleaning up any existing Redis resources...");
+    match km.deployment_delete("redis-cluster").await {
+        Ok(_) => println!("✓ Deleted existing deployment"),
+        Err(_) => println!("✓ No existing deployment to delete"),
+    }
+
+    match km.service_delete("redis-cluster").await {
+        Ok(_) => println!("✓ Deleted existing service"),
+        Err(_) => println!("✓ No existing service to delete"),
+    }
+
+    // Configure Redis-specific labels
+    let mut labels = HashMap::new();
+    labels.insert("app".to_string(), "redis-cluster".to_string());
+    labels.insert("type".to_string(), "cache".to_string());
+    labels.insert("engine".to_string(), "redis".to_string());
+
+    // Configure Redis environment variables
+    let mut env_vars = HashMap::new();
+    env_vars.insert("REDIS_PASSWORD".to_string(), "redispassword".to_string());
+    env_vars.insert("REDIS_PORT".to_string(), "6379".to_string());
+    env_vars.insert("REDIS_DATABASES".to_string(), "16".to_string());
+    env_vars.insert("REDIS_MAXMEMORY".to_string(), "256mb".to_string());
+    env_vars.insert(
+        "REDIS_MAXMEMORY_POLICY".to_string(),
+        "allkeys-lru".to_string(),
+    );
+
+    // Deploy the Redis cluster using the convenience method
+    println!("Deploying Redis cluster...");
+    km.deploy_application(
+        "redis-cluster",  // name
+        "redis:7-alpine", // image
+        3,                // replicas (Redis cluster nodes)
+        6379,             // port
+        Some(labels),     // labels
+        Some(env_vars),   // environment variables
+    )
+    .await?;
+
+    println!("✅ Redis cluster deployed successfully!");
+
+    // Check deployment status
+    let deployments = km.deployments_list().await?;
+    let redis_deployment = deployments
+        .iter()
+        .find(|d| d.metadata.name.as_ref() == Some(&"redis-cluster".to_string()));
+
+    if let Some(deployment) = redis_deployment {
+        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!(
+            "Deployment status: {}/{} replicas ready",
+            ready_replicas, total_replicas
+        );
+    }
+
+    println!("\n📋 Connection Information:");
+    println!("  Host: redis-cluster.cache.svc.cluster.local");
+    println!("  Port: 6379");
+    println!("  Password: Configure REDIS_PASSWORD environment variable");
+
+    println!("\n🔧 To connect from another pod:");
+    println!("  redis-cli -h redis-cluster.cache.svc.cluster.local");
+
+    println!("\n💡 Next steps:");
+    println!("  • Configure Redis authentication with environment variables");
+    println!("  • Set up Redis clustering configuration");
+    println!("  • Add persistent volume claims for data persistence");
+    println!("  • Configure memory limits and eviction policies");
+
+    Ok(())
+}