部署k8s statefulset

    利用之前创建的storageclass,部署了个statefulset. 如下为yaml文件

[root@master ~]# cat nginx-statefulset.yaml

apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: web
  clusterIP: None
  selector:
    app: nginx
---
apiVersion: apps/v1beta2
kind: StatefulSet
metadata:
  name: web
spec:
  selector:
    matchLabels:
      app: nginx # has to match .spec.template.metadata.labels
  serviceName: "nginx"
  replicas: 3 # by default is 1
  template:
    metadata:
      labels:
        app: nginx # has to match .spec.selector.matchLabels
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: nginx
        image: 192.168.122.1:5000/nginx:latest
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /usr/share/nginx/html
  volumeClaimTemplates:
  - metadata:
      name: www
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: liping-ceph-fast
      resources:
        requests:

          storage: 1Gi

创建完毕,集群创建了三个pod.pod名字为statefulset的名字和顺序号组成,pod也以此顺序号依次创建.

创建了三个pV并绑定到pod上面

pod运行的node节点查看rbd的map状态.

参考:

  https://v1-8.docs.kubernetes.io/docs/concepts/workloads/controllers/statefulset/