k8s部署redis服务

系统管理员 2023-02-13 14:47 17阅读 0赞

kubernetes部署redis5.0.6单机版 自定义配置文件、密码、日志路径等

创建redis配置configmaps：

apiVersion: v1
    kind: ConfigMap
    metadata:
      name: redis-conf
    data:
      redis.conf: |
            bind 0.0.0.0
            port 6379
            requirepass 123456
            pidfile .pid
            appendonly yes
            cluster-config-file nodes-6379.conf
            pidfile /data/middleware-data/redis/log/redis-6379.pid
            cluster-config-file /data/middleware-data/redis/conf/redis.conf
            dir /data/middleware-data/redis/data/
            logfile "/data/middleware-data/redis/log/redis-6379.log"
            cluster-node-timeout 5000
            protected-mode no

创建configmaps pod

[root@master redis]# kubectl create -f redis-configmaps.yaml -n gridcloud
    configmap/redis-conf created

创建StatefulSet，并把数据挂载到宿主机上：

apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: redis
    spec:
      replicas: 1
      serviceName: redis
      selector:
        matchLabels:
          name: redis
      template:
        metadata:
          labels:
            name: redis
        spec:
          initContainers:
          - name: init-redis
            image: busybox
            command: ['sh', '-c', 'mkdir -p /data/middleware-data/redis/log/;mkdir -p /data/middleware-data/redis/conf/;mkdir -p /data/middleware-data/redis/data/']
            volumeMounts:
            - name: data
              mountPath: /data/middleware-data/redis/
          containers:
          - name: redis
            image: redis:5.0.6
            imagePullPolicy: IfNotPresent
            command:
            - sh
            - -c
            - "exec redis-server /data/middleware-data/redis/conf/redis.conf"
            ports:
            - containerPort: 6379
              name: redis
              protocol: TCP
            volumeMounts:
            - name: redis-config
              mountPath: /data/middleware-data/redis/conf/
            - name: data
              mountPath: /data/middleware-data/redis/
          volumes:
          - name: redis-config
            configMap:
              name: redis-conf
          - name: data
            hostPath:
              path: /data/middleware-data/redis/

创建statefulset pod

[root@master redis]# kubectl create -f statefulset-redis.yaml -n gridcloud
    statefulset.apps/redis created

创建Service：

kind: Service
    apiVersion: v1
    metadata:
      labels:
        name: redis
      name: redis
    spec:
      type: NodePort
      ports:
      - name: redis
        port: 6379
        targetPort: 6379
        nodePort: 30020
      selector:
        name: redis

创建service pod

[root@master redis]# kubectl create -f redis-deploy.yaml -n gridcloud
    The Service "redis" is invalid: spec.ports[0].nodePort: Invalid value: 30020: provided port is already allocated
    [root@master redis]# kubectl replace --force -f redis-deploy.yaml -n gridcloud
    service "redis" deleted
    service/redis replaced

在三台机器上都尝试登陆redis已验证redis是否部署成功

[root@manage-host bin]# redis-cli -h 192.168.0.155 -p 30020
    192.168.0.155:30020> auth 123456
    OK
    192.168.0.155:30020> set a 1
    OK
    192.168.0.155:30020> get a
    "1"
    192.168.0.155:30020> 
    [root@manage-host bin]# redis-cli -h 192.168.0.154 -p 30020
    192.168.0.154:30020> auth 123456
    OK
    192.168.0.154:30020> get a
    "1"
    192.168.0.154:30020> 
    [root@manage-host bin]# redis-cli -h 192.168.0.153 -p 30020
    192.168.0.153:30020> auth
    (error) ERR wrong number of arguments for 'auth' command
    192.168.0.153:30020> auth 123456
    OK
    192.168.0.153:30020>

至此redis部署完毕