Docker配置 redis

一主二从三哨兵

文件目录

redis compose 文件

docker-compose.yml

version: '3'
services:
  master:
    image: redis
    container_name: redis-master
    command: redis-server  --requirepass redis_pwd  --masterauth redis_pwd   --replica-announce-ip 192.168.84.143   --replica-announce-port  6380 
    ports:
      - 6380:6379
  slave1:
    image: redis
    container_name: redis-slave-1
    ports:
      - 6381:6379
    command:  redis-server --slaveof redis-master 6379 --masterauth redis_pwd  --requirepass redis_pwd  --replica-announce-ip 192.168.84.143  --replica-announce-port  6381
  slave2:
    image: redis
    container_name: redis-slave-2
    ports:
      - 6382:6379
    command: redis-server --slaveof redis-master 6379 --masterauth redis_pwd --requirepass redis_pwd  --replica-announce-ip 192.168.84.143  --replica-announce-port  6382

在 redis 文件路径下执行 docker compose

(base) wenxiaoyu@wenshuaishuaideMacBook-Pro redis % pwd
/Users/wenxiaoyu/env/docker-test/redis
(base) wenxiaoyu@wenshuaishuaideMacBook-Pro redis % docker compose up -d
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
(base) wenxiaoyu@wenshuaishuaideMacBook-Pro redis % docker compose up -d
[+] Running 9/9
 ⠿ master Pulled                                                          10.4s
 ⠿ slave2 Pulled                                                          10.4s
   ⠿ 6064e7e5b6af Pull complete                                            4.1s
   ⠿ f6bd55a0e6ff Pull complete                                            4.2s
   ⠿ 7525aa3c12b6 Pull complete                                            4.3s
   ⠿ 9aeda440bf83 Pull complete                                            4.6s
   ⠿ 5e63a885a59a Pull complete                                            4.6s
   ⠿ 595b087d4909 Pull complete                                            4.7s
 ⠿ slave1 Pulled                                                          10.4s
[+] Running 4/4
 ⠿ Network redis_default    Created                                        0.1s
 ⠿ Container redis-master   Started                                        0.7s
 ⠿ Container redis-slave-1  Started                                        0.7s
 ⠿ Container redis-slave-2  Started                                        0.7s

sentinel 文件结构

sentinel compose 配置文件

version: '3'
services:
  sentinel1:
    image: redis
    container_name: redis-sentinel-1
    ports:
      - 26379:26379
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
      - ./sentinel1.conf:/usr/local/etc/redis/sentinel.conf
  sentinel2:
    image: redis
    container_name: redis-sentinel-2
    ports:
    - 26380:26379
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
      - ./sentinel2.conf:/usr/local/etc/redis/sentinel.conf
  sentinel3:
    image: redis
    container_name: redis-sentinel-3
    ports:
      - 26381:26379
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
      - ./sentinel3.conf:/usr/local/etc/redis/sentinel.conf
networks:
  default:
      name: redis_default
      external: true

sentinel config 配置文件

port 26379
dir /tmp
sentinel announce-ip 172.20.0.1
sentinel announce-port 26379
sentinel monitor mymaster 172.20.0.1 6380 2
sentinel auth-pass mymaster redis_pwd
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes

切换到 sentinel执行 compose

(base) wenxiaoyu@wenshuaishuaideMacBook-Pro docker-test % cd sentinel
(base) wenxiaoyu@wenshuaishuaideMacBook-Pro sentinel % docker compose up -d
[+] Running 3/3
 ⠿ Container redis-sentinel-2  Started                                     0.7s
 ⠿ Container redis-sentinel-3  Started                                     0.6s
 ⠿ Container redis-sentinel-1  Started                                     0.6s

测试及问题记录

# redis-cli -p 26379
127.0.0.1:26379> info
# Server
redis_version:7.0.5
redis_git_sha1:00000000
redis_git_dirty:0
...
master0:name=mymaster,status=sdown,address=172.20.0.1:6380,slaves=0,sentinels=1

问题,slaves=0,sentinels=1
status=sdown

解决方案

(base) wenxiaoyu@wenshuaishuaideMacBook-Pro sentinel % docker inspect e1cc

注意此处的 elcc 是我的 redis=master 容器 id, 你需要修改为你的 id

然后寻找Gateway

将 sentinel 的三个 config 文件中的 ip 修改为查到的 ip

问题解决