mysql容器 kubernetes_Kubernetes创建mysql容器 互联网技术圈 互联网技术圈

首先，创建mysql-rc.yaml，内容如下：

apiVersion: v1

kind: ReplicationController

metadata:

name: mysql5-7-v1

namespace: default

labels:

name: mysql5-7

version: v1

spec:

replicas: 1

selector:

name: mysql5-7

version: v1

template:

metadata:

labels:

name: mysql5-7

version: v1

spec:

containers:

- image: mysql:5.7

name: mysql5-7-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

然后创建容器：

kubectl create -f mysql-rc.yaml

通过命令查看如下：

[root@k4152v /data/yaml]# kubectl get pods -o wide

NAME READY STATUS RESTARTS AGE IP NODE

mysql5-7-v1-rzz6j 1/1 Running 0 29m 10.244.2.6 k4614v.add.bjyt.qihoo.net

查看配置信息如下：

[root@k4152v /data/yaml]# kubectl describe pod mysql5-7-v1-rzz6j

Name: mysql5-7-v1-rzz6j

Namespace: default

Node: k4614v.add.bjyt.qihoo.net/10.209.5.35

Start Time: Mon, 09 Apr 2018 20:50:45 +0800

Labels: name=mysql5-7

version=v1

Annotations:

Status: Running

IP: 10.244.2.6

Controlled By: ReplicationController/mysql5-7-v1

Containers:

mysql5-7-v1:

Container ID: docker://6fa8bbc8148c585fa6613c82444cea1751a9063c366bd820d2ba2e959a5fd230

Image: mysql:5.7

Image ID: docker-pullable://mysql@sha256:691c55aabb3c4e3b89b953dd2f022f7ea845e5443954767d321d5f5fa394e28c

Port: 3306/TCP

State: Running

Started: Mon, 09 Apr 2018 20:51:47 +0800

Ready: True

Restart Count: 0

Environment:

MYSQL_ROOT_PASSWORD: abcd123

Mounts:

/var/lib/mysql from mysql-storage (rw)

/var/run/secrets/kubernetes.io/serviceaccount from default-token-8bsjw (ro)

Conditions:

Type Status

Initialized True

Ready True

PodScheduled True

Volumes:

mysql-storage:

Type: HostPath (bare host directory volume)

Path: /data/mysql

HostPathType:

default-token-8bsjw:

Type: Secret (a volume populated by a Secret)

SecretName: default-token-8bsjw

Optional: false

QoS Class: BestEffort

Node-Selectors:

Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s

node.kubernetes.io/unreachable:NoExecute for 300s

Events:

Type Reason Age From Message

---- ------ ---- ---- -------

Normal Scheduled 30m default-scheduler Successfully assigned mysql5-7-v1-rzz6j to k4614v.add.bjyt.qihoo.net

Normal SuccessfulMountVolume 30m kubelet, k4614v.add.bjyt.qihoo.net MountVolume.SetUp succeeded for volume "mysql-storage"

Normal SuccessfulMountVolume 30m kubelet, k4614v.add.bjyt.qihoo.net MountVolume.SetUp succeeded for volume "default-token-8bsjw"

Normal Pulling 30m kubelet, k4614v.add.bjyt.qihoo.net pulling image "mysql:5.7"

Normal Pulled 29m kubelet, k4614v.add.bjyt.qihoo.net Successfully pulled image "mysql:5.7"

Normal Created 29m kubelet, k4614v.add.bjyt.qihoo.net Created container

Normal Started 29m kubelet, k4614v.add.bjyt.qihoo.net Started container

然后通过kubernetes管理端就可以看到，如下：

通过管理端命令端登录进去，如图：

接下来，我们配置个mysql-svc.yaml,直接指定映射到宿主机ip,这样就可以对外访问了，内容如下：

apiVersion: v1

kind: Service

metadata:

name: mysql5-7

namespace: default

labels:

name: mysql5-7

spec:

externalIPs:

- 10.209.5.43

ports:

- port: 3306

targetPort: 3306

selector:

name: mysql5-7

创建容器：

kubectl create -f mysql-svc.yaml

查看容器是否已经运行：

[root@k4152v /data/yaml]# kubectl get svc

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE

kubernetes ClusterIP 10.96.0.1 443/TCP 10h

mysql5-7 ClusterIP 10.109.170.208 10.209.5.43 3306/TCP 29m

或者通过管理端查看，如下图：

详情如下：

然后我们测试一下，看看是否可以外连，如下：

ok了