52 lines
1.9 KiB
JSON
52 lines
1.9 KiB
JSON
{
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"id": "rolling-update-task",
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"title": "Perform a Rolling Update",
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"category": "Workloads",
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"difficulty": "Easy",
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"type": "task",
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"weight": 5,
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"description": "## Perform a Rolling Update\n\nA Deployment named `app-v1` is running `nginx:1.24`. Your team needs to upgrade it to `nginx:1.25`.\n\n**Your task:**\n\nUpdate the image of the `app-v1` deployment to `nginx:1.25` using a rolling update strategy. Ensure all replicas are running the new image.",
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"hints": [
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{
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"title": "Set a new image on a Deployment",
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"body": "Use `kubectl set image deployment/<name> <container-name>=<new-image>` to trigger a rolling update.",
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"command": "kubectl set image deployment/app-v1 nginx=nginx:1.25"
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},
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{
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"title": "Check rollout progress",
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"body": "Monitor the rollout with `kubectl rollout status`. Once complete, all pods will run the new image.",
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"command": "kubectl get deployment app-v1 -o jsonpath='{.spec.template.spec.containers[0].image}'"
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}
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],
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"setup_commands": [
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{
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"command": "kubectl create deployment app-v1 --image=nginx:1.24 --replicas=2"
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},
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{
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"command": "kubectl rollout status deployment/app-v1 --timeout=60s"
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}
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],
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"validation": {
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"commands": [
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{
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"description": "Deployment 'app-v1' image is nginx:1.25",
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"command": "kubectl get deployment app-v1 -o jsonpath='{.spec.template.spec.containers[0].image}'",
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"expected_output": "nginx:1.25",
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"match": "exact"
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},
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{
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"description": "Deployment has 2 ready replicas",
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"command": "kubectl get deployment app-v1 -o jsonpath='{.status.readyReplicas}' 2>/dev/null | grep -v '^$' || echo 0",
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"expected_output": "2",
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"match": "exact"
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}
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]
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},
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"default_namespace": "default",
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"teardown_commands": [
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{
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"command": "kubectl delete deployment app-v1 --ignore-not-found"
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}
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]
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}
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