Kubernetes

StatefulSets Commands

Deploy stateful applications with stable identities. Learn StatefulSets for databases, queues, and other workloads requiring persistent storage and ordered deployment.

4 commands

Pro Tips

StatefulSets provide stable network identities: pod-0, pod-1, etc. with corresponding DNS names.

Use volumeClaimTemplates for automatic PVC creation - each pod gets its own persistent volume.

Set 'podManagementPolicy: Parallel' if your app doesn't require ordered startup/shutdown.

Common Mistakes

Deleting a StatefulSet doesn't delete PVCs. This prevents data loss but requires manual cleanup.

Scaling down removes pods in reverse order. Ensure your application handles this gracefully.

Commands

List statefulsets

$ kubectl get statefulsets

List all statefulsets.

Describe statefulset

$ kubectl describe statefulset <name>

Show detailed statefulset information.

Scale statefulset

$ kubectl scale statefulset/<name> --replicas=3

Scale statefulset to specified replicas.

Rollout status statefulset

$ kubectl rollout status statefulset/<name>

Monitor statefulset rollout progress.