一、前言

• 简介

  Dragonfly

• 准备

  组件

  项	ip	描述
  k8s集群
  helm3
  pv		持久化卷

  服务器

  项	version
  Linux	Centos7

二、部署

• 建立文件夹

  rm -rf /home/data/dragonfly
  
  mkdir /home/data/dragonfly
  
  chmod  -R 777 /home/data/dragonfly
  

• 建立pv

  编辑pv.yaml

  apiVersion: v1
  kind: PersistentVolume
  metadata:
    name: data-dragonfly-0
  spec:
    capacity:
      storage: 10Gi
    accessModes:
      - ReadWriteOnce
    persistentVolumeReclaimPolicy: Retain
    hostPath:
      path: /home/data/dragonfly
      type: DirectoryOrCreate
    nodeAffinity:
      required:
        nodeSelectorTerms:
          - matchExpressions:
              - key: kubernetes.io/hostname
                operator: In
                values:
                  - centos205
  
      
  
  

  kubectl apply -f pv.yaml
  

• 部署

  1. add values.yaml

  extraArgs:
    - --dbfilename=dump
    - --save_schedule=*:* # HH:MM glob format
  storage:
    enabled: true
    requests: 10240Mi
  
  podSecurityContext:
    fsGroup: 2000
  
  securityContext:
    capabilities:
      drop:
        - ALL
    readOnlyRootFilesystem: true
    runAsNonRoot: true
    runAsUser: 1000
  

  2. install：

      helm upgrade -f values.yaml --install dragonfly oci://ghcr.io/dragonflydb/dragonfly/helm/dragonfly --version v1.3.0
  

  3. 修改nodeport

  ```bash
  kubectl patch svc dragonfly  --type='json' -p '[{"op":"replace","path":"/spec/type","value":"NodePort"},{"op":"replace","path":"/spec/ports/0/nodePort","value":30379}]'
  ```
  

​

三、迁移数据

1. 在dragonfly客户端执行 （填写旧redis地址）

   replicaof 192.168.0.185 6379
   

2. 同步完成后执行

   replicaof no one
   

   ​

​