k8s单节点redis部署+nfs+aof持久化

前言：基于量化生产环境及生产数据安全需求，redis需开启aof持久化数据到本地，此次部署rdb与aof同时开启

一、configMap资源创建

apiVersion: v1
kind: ConfigMap
metadata:
  name: redis
data:
  redis.conf: |+
    protected-mode no
    port 6379
    daemonize no
    supervised no
    pidfile /var/run/redis_6379.pid
    logfile ""
    save 900 1
    save 300 10
    save 60 10000
    rdbcompression yes
    rdbchecksum yes
    dbfilename dump.rdb
    dir /data
    appendonly yes
    appendfilename "appendonly.aof"
    appendfsync everysec

二、nfs部署

nfs-server端搭建

$ sudo apt-get install nfs-kernel-server
$ sudo systemctl restart    nfs-kernel-server.service
$ sudo mkdir -R  /data/nfs_service
$ sudo chown -R nobody.nogroup  /data/nfs-service
$ sudo vim  /etc/exports
        /data/nfs_service 172.16.0.0/12(rw,sync,no_subtree_check)   #添加授权网段的权限
$ sudo /etc/init.d/rpcbind restart
$ sudo systemctl status  nfs-kernel-server.service

nfs-client端搭建

$ sudo apt-get  install  nfs-common
$ sudo mkdir  /data/nfs-client
$ sudo showmount -e  172.21.12.24  查看nfs-server
$ sudo mount -t  nfs  172.21.12.24:/data/nfs_service    /data/nfs_service  #临时挂载
$ sudo vim /etc/fstab
       172.21.12.24:/nfs-service      /data/nfs-client      nfs  defaults,_rnetdev   1  1  #开机自动挂载 ， _rnetdev 表示主机无法挂载直接跳过
$ mount -a  #fstab文件书写是否正确

三、pv、pvc搭建

apiVersion: v1
kind: PersistentVolume
metadata:
  name: redis-pv
  annotations:
    volume.beta.kubernetes.io/storage-class: "redis-data"
spec:
  capacity:
    storage: 300Gi
  accessModes:
    - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  nfs:
    server: 172.21.12.24
    path: "/data/nfs-service"
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: redis-pvc
  annotations:
    volume.beta.kubernetes.io/storage-class: "redis-data"
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 300Gi

四、deployment部署redis

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "2"
  name: xquant-redis
  namespace: default
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: xquant-redis
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: xquant-redis
    spec:
      containers:
      - image: redis:5.0.3
        imagePullPolicy: IfNotPresent
        command: ["redis-server","/etc/redis/redis.conf"]
        name: xquant-redis
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - name: redis-config
        mountPath: /etc/redis/redis.conf
          subPath: redis.conf
        - name: redis-pvc
          mountPath: /data
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30
      volumes:
      - name: redis-config
        configMap:
          name: redis
          items:
          - key: redis.conf
            path: redis.conf
      - name: redis-nfs
        persistentVolumeClaim:
          claimName: redis-pvc

至此，整个redis部署及aof持久化就大功告成啦！