Stop, Start, and Restart MinIO

Prerequisites

• A functional Kubernetes cluster (v1.21+ recommended)
• kubectl v1.21+ installed and configured with cluster access
• KubeBlocks installed (installation guide)
• MinIO Add-on enabled:

  helm install minio kubeblocks/minio --version 1.1.0-alpha.0 -n kb-system
  

• A namespace for the cluster (examples use demo):

  kubectl create ns demo
  

Stop

Stopping a cluster shuts down all pods while retaining data volumes:

kubectl apply -f - <<EOF
apiVersion: operations.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: minio-stop
  namespace: demo
spec:
  clusterName: minio-cluster
  type: Stop
EOF

Monitor progress:

kubectl get opsrequest minio-stop -n demo -w

NAME         TYPE   CLUSTER         STATUS    PROGRESS   AGE
minio-stop   Stop   minio-cluster   Succeed   2/2        30s

Start

Start a previously stopped cluster:

kubectl apply -f - <<EOF
apiVersion: operations.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: minio-start
  namespace: demo
spec:
  clusterName: minio-cluster
  type: Start
EOF

Monitor progress:

kubectl get opsrequest minio-start -n demo -w

NAME          TYPE    CLUSTER         STATUS    PROGRESS   AGE
minio-start   Start   minio-cluster   Succeed   2/2        60s

Restart

Restart all MinIO pods (rolling restart):

kubectl apply -f - <<EOF
apiVersion: operations.kubeblocks.io/v1alpha1
kind: OpsRequest
metadata:
  name: minio-restart
  namespace: demo
spec:
  clusterName: minio-cluster
  type: Restart
  restart:
    - componentName: minio
EOF

Monitor progress:

kubectl get opsrequest minio-restart -n demo -w

NAME            TYPE      CLUSTER         STATUS    PROGRESS   AGE
minio-restart   Restart   minio-cluster   Succeed   2/2        60s

Cleanup

kubectl delete opsrequest minio-stop minio-start minio-restart -n demo --ignore-not-found