k8s部署redis服务

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

[[email protected] 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

[[email protected] 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

[[email protected] 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
[[email protected] 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 

[[email protected] 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> 
[[email protected] 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> 
[[email protected] 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