(kubectl) Creating a StatefulSet Mounted with an SFS Turbo Volume

Scenario

CCE allows you to use an existing SFS Turbo volume to create a StatefulSet.

Notes and Constraints

The following configuration example applies to clusters of Kubernetes 1.13 or earlier.

Procedure

Create an SFS Turbo volume and record the volume name.
Use kubectl to connect to the cluster. For details, see Connecting to a Cluster Using kubectl.

Create a YAML file for creating the workload. Assume that the file name is efs-statefulset-example.yaml.

touch efs-statefulset-example.yaml

vi efs-statefulset-example.yaml

Example YAML:

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: efs-statefulset-example
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: efs-statefulset-example
  template:
    metadata:
      annotations:
        metrics.alpha.kubernetes.io/custom-endpoints: '[{"api":"","path":"","port":"","names":""}]'
        pod.alpha.kubernetes.io/initialized: 'true'
      labels:
        app: efs-statefulset-example
    spec:
      containers:
        - image: 'nginx:1.0.0'
          name: container-0
          resources:
            requests: {}
            limits: {}
          env:
            - name: PAAS_APP_NAME
              value: efs-statefulset-example
            - name: PAAS_NAMESPACE
              value: default
            - name: PAAS_PROJECT_ID
              value: b18296881cc34f929baa8b9e95abf88b
          volumeMounts:
            - name: efs-statefulset-example
              mountPath: /tmp
              readOnly: false
              subPath: ''
      imagePullSecrets:
        - name: default-secret
      terminationGracePeriodSeconds: 30
      volumes:
        - persistentVolumeClaim:
            claimName: cce-efs-import-jnr481gm-3y5o
          name: efs-statefulset-example
      affinity: {}
      tolerations:
        - key: node.kubernetes.io/not-ready
          operator: Exists
          effect: NoExecute
          tolerationSeconds: 300
        - key: node.kubernetes.io/unreachable
          operator: Exists
          effect: NoExecute
          tolerationSeconds: 300
  podManagementPolicy: OrderedReady
  serviceName: test
  updateStrategy:
    type: RollingUpdate

**Table 1** Key parameters
Parameter	Description
replicas	Number of pods.
name	Name of the created workload.
image	Image used by the workload.
mountPath	Mount path in the container.
serviceName	Service corresponding to the workload. For details about how to create a Service, see Creating a StatefulSet.
claimName	Name of an existing PVC.

spec.template.spec.containers.volumeMounts.name and spec.template.spec.volumes.name must be consistent because they have a mapping relationship.