Kubernetes创建可外部访问的mysql容器

青旅半醒 2022-11-20 05:50 170阅读 0赞

创建一个Mysql服务的容器；

我们还是使用内网的Docker私有镜像仓库，第一次运行时会从镜像仓库中拉取镜像到机器上，以后就直接在机器上运行加快速度；

直接上配置文件：mysql-rc.yaml

kind: ReplicationController
    metadata:
      name: my-mysql-v1
      namespace: default
      labels:
        name: my-mysql
        version: v1
    spec:
      replicas: 1
      selector:
        name: my-mysql
        version: v1
      template:
        metadata:
          labels:
            name: my-mysql
            version: v1
        spec:
          containers:
            - image: reg.docker.tb/harbor/mysql:latest
              name: my-mysql-v1
              ports:
                - containerPort: 3306
              env:
                - name: MYSQL_ROOT_PASSWORD
                  value: abcd123
              volumeMounts:
                - name: mysql-storage
                  mountPath: /var/lib/mysql
          volumes:
            - name: mysql-storage
              hostPath:
                path: /data/mysql

mysql-svc.yaml 注意这里直接指定了宿主机的IP地址；

apiVersion: v1
    kind: Service
    metadata:
      name: my-mysql
      namespace: default
      labels:
        name: my-mysql
    spec:
      externalIPs:
        - 10.0.10.135
      ports:
        - port: 3306
          targetPort: 3306
      selector:
        name: my-mysql

创建容器：

[root@node5 ~]# kubectl create -f mysql-rc.yaml
    replicationcontroller "my-mysql-v1" created
    [root@node5 ~]# kubectl create -f mysql-svc.yaml
    service "my-mysql" created

查看容器是否已经运行：

[root@node5 ~]# kubectl get svc
    NAME         CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE
    kubernetes   10.254.0.1      <none>        443/TCP    9d
    my-mysql     10.254.93.211   10.0.10.135   3306/TCP   3m
    [root@node5 ~]# kubectl get pods
    NAME                READY     STATUS    RESTARTS   AGE
    my-mysql-v1-t9s1p   1/1       Running   0          4m

验证是否可以外部访问：

![c782d6753a767257e301ec81e173ab46.png][]

表明成功运行了mysql容器，并且可以能过宿主机的IP来访问；

[c782d6753a767257e301ec81e173ab46.png]: /images/20221120/90eac9ef6b244e8098571e9800c204ba.png