k8s-启动单机etcd

文章目录

• 1. yml文件
• 2. 创建服务
• 3. 查看结果

1. yml文件

创建etcd.yml文件，内容如下：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: etcd
  namespace: etcd01
spec:
  replicas: 1
  selector:
    matchLabels:
      app: etcd
  template:
    metadata:
      labels:
        app: etcd
    spec:
      containers:
      - name: gateway
        image: quay.io/coreos/etcd:v3.4.13
        imagePullPolicy: IfNotPresent
        env:
        - name: ETCDCTL_API
          value: "3"
          value: "http://0.0.0.0:2379"
        - name: ETCD_LISTEN_CLIENT_URLS
          value: "http://0.0.0.0:2379"
        ports:
        - containerPort: 2379
          protocol: TCP
          name: tcp01
        - containerPort: 2380
          protocol: TCP
          name: tcp02
        volumeMounts:
        - mountPath: /etcd
          name: etcd-etcd
        - mountPath: /etcd-server.etcd
          name: etcd-data
      volumes:
      - name: etcd-etcd
        persistentVolumeClaim:
          claimName: etcd-etcd
      - name: etcd-data
        persistentVolumeClaim:
          claimName: etcd-data
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
 name: etcd-etcd
 namespace: etcd01
spec:
 accessModes:
   - ReadWriteMany
 resources:
   requests:
     storage: 10Gi
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
 name: etcd-data
 namespace: etcd01
spec:
 accessModes:
   - ReadWriteMany
 resources:
   requests:
     storage: 50Gi
---
kind: Service
apiVersion: v1
metadata:
  name: etcd
  namespace: etcd01
  labels:
    name: etcd
spec:
  ports:
  - name: etcd-01
    protocol: TCP
    targetPort: 2379
    port: 2379
  - name: etcd-02
    protocol: TCP
    targetPort: 2380
    port: 2380
  selector:
    app: etcd

2. 创建服务

# kubectl create namespace etcd
# kubectl create -f etcd.yml

3. 查看结果

• 工作负载和服务

[root@master-01 ~]# kubectl get all -n etcd
NAME                        READY   STATUS    RESTARTS   AGE
pod/etcd-846f796c66-t5qjl   1/1     Running   0          95d

NAME           TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)                         AGE
service/etcd   NodePort   172.21.7.113   <none>        2379:31020/TCP,2380:31021/TCP   95d

NAME                   READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/etcd   1/1     1            1           95d

NAME                              DESIRED   CURRENT   READY   AGE
replicaset.apps/etcd-846f796c66   1         1         1       95d

• 存储

[root@master-01 ~]# kubectl get pvc -n etcd
NAME        STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS           AGE
etcd-data   Bound    nas-c154bc16-2497-44a7-8640-ed0cd590f10f   50Gi       RWX            alicloud-nas-subpath   95d
etcd-etcd   Bound    nas-d2b27b9d-99f5-41dd-afcf-6d07e93035ef   10Gi       RWX            alicloud-nas-subpath   95d