{
  "id": "expose-service-basics",
  "title": "Exposing an Application",
  "category": "Services & Networking",
  "difficulty": "Easy",
  "type": "task",
  "weight": 4,
  "description": "## Exposing an Application\n\nA `redis` deployment is running, but other pods cannot reliably connect to it because pod IPs change when they restart.\n\n**Your task:**\n\nCreate a **ClusterIP** Service named `redis-svc` to expose the `redis` deployment on port `6379`.\n\n```bash\n# Verify your service:\nkubectl get svc redis-svc\n```",
  "hints": [
    {
      "title": "Use kubectl expose",
      "body": "The imperative `expose` command is the fastest way to create a service for a deployment.",
      "command": "kubectl expose deployment redis --name=redis-svc --port=6379 --target-port=6379"
    }
  ],
  "setup_commands": [
    {
      "command": "kubectl create deployment redis --image=redis:alpine"
    }
  ],
  "validation": {
    "commands": [
      {
        "description": "Service 'redis-svc' exists",
        "command": "kubectl get svc redis-svc -o jsonpath='{.metadata.name}'",
        "expected_output": "redis-svc",
        "match": "exact"
      },
      {
        "description": "Service targets port 6379",
        "command": "kubectl get svc redis-svc -o jsonpath='{.spec.ports[0].port}'",
        "expected_output": "6379",
        "match": "exact"
      },
      {
        "description": "Service selector matches deployment",
        "command": "kubectl get svc redis-svc -o jsonpath='{.spec.selector.app}'",
        "expected_output": "redis",
        "match": "exact"
      }
    ]
  },
  "default_namespace": "default",
  "teardown_commands": [
    {
      "command": "kubectl delete deployment redis --ignore-not-found"
    },
    {
      "command": "kubectl delete svc redis-svc --ignore-not-found"
    }
  ]
}