docker下redis集群_dockerfile alpine:3.13包含redis吗

准备

redis配置文件中不支持系统变量，所以我们自己基于alpine自己做个镜像

• redis.conf

protected-mode no
tcp-backlog 511
timeout 0
tcp-keepalive 300
loglevel notice
save 3600 1
stop-writes-on-bgsave-error no
rdbcompression yes
rdbchecksum no
dbfilename _dump.rdb
appendonly no
bind 0.0.0.0
cluster-enabled yes
cluster-node-timeout 15000
cluster-require-full-coverage no
activerehashing yes
port REDIS_PORT
cluster-announce-port REDIS_PORT
cluster-announce-bus-port 1REDIS_PORT
maxmemory 2gb
maxmemory-policy allkeys-lru
maxclients 10000
dir /home/data
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• start.sh

#!/bin/sh
mkdir -p /home/data
sed -i "s/REDIS_PORT/${REDIS_PORT}/g" /etc/redis/redis.conf
sed -i "s/MS_PS/${MS_PS}/g" /etc/redis/redis.conf
sed -i "s/PASSWORD/${PASSWORD}/g" /etc/redis/redis.conf
/usr/bin/redis-server /etc/redis/redis.conf
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• dockerfile

FROM alpine:3.13.1
MAINTAINER xusiwang@wondertek.com.cn
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apk/repositories && apk update && apk add redis
COPY redis.conf /etc/redis/redis.conf
COPY start.sh /home
RUN chmod +x /home/start.sh
ENV REDIS_PORT=6379
EXPOSE 6379
#CMD ["redis-server","/etc/redis/redis.conf"]
ENTRYPOINT /home/start.sh
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• 生成redis镜像

docker build -t redis:6.0 .

docker-compose文件

• redis_clu.yml

version: '3'
networks:
  bestv:
    driver: bridge
    ipam:
      config:
      - subnet: 172.23.0.0/16  

services:
  redis1:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis1
    container_name: redis1
    ports:
      - 7001:7001
    environment:
      REDIS_PORT: 7001
    privileged: true
    volumes:
      - ./redis/7001/data:/home/data
    networks:
      bestv:
        ipv4_address: 172.23.0.2

  redis2:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis2
    container_name: redis2
    ports:
      - 7002:7002
    environment:
      REDIS_PORT: 7002
    privileged: true
    volumes:
      - ./redis/7002/data:/home/data
    depends_on:
      - redis1
    networks:
      bestv:
        ipv4_address: 172.23.0.3

  redis3:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis3
    container_name: redis3
    ports:
      - 7003:7003
    environment:
      REDIS_PORT: 7003
    privileged: true
    volumes:
      - ./redis/7003/data:/home/data
    depends_on:
      - redis1
      - redis2
    networks:
      bestv:
        ipv4_address: 172.23.0.4

  redis4:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis4
    container_name: redis4
    ports:
      - 7004:7004
    environment:
      REDIS_PORT: 7004
    privileged: true
    volumes:
      - ./redis/7004/data:/home/data
    depends_on:
      - redis1
      - redis2
      - redis3
    networks:
      bestv:
        ipv4_address: 172.23.0.5
  redis5:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis5
    container_name: redis5
    ports:
      - 7005:7005
    environment:
      REDIS_PORT: 7005
    privileged: true
    volumes:
      - ./redis/7005/data:/home/data
    depends_on:
      - redis1
      - redis2
      - redis3
      - redis4
    networks:
      bestv:
        ipv4_address: 172.23.0.6

  redis6:
    image: redis:6.0
    restart: unless-stopped
    hostname: redis6
    container_name: redis6
    ports:
      - 7006:7006
    environment:
      REDIS_PORT: 7006
    privileged: true
    volumes:
      - ./redis/7006/data:/home/data
    depends_on:
      - redis1
      - redis2
      - redis3
      - redis4
      - redis5
    networks:
      bestv:
        ipv4_address: 172.23.0.7
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• 启动redis

docker-compose -f redis-clu.yml up -d

配置redis集群

redis对主机名的支持不太友好，所以我们换成ip方式

• 随便进入一台redis容器

docker exec -it redis-1 sh

• 生成集群

redis-cli --cluster create 172.23.0.2:7001 172.23.0.3:7002 172.23.0.4:7003 172.23.0.5:7004 172.23.0.6:7005 172.23.0.7:7006 --cluster-replicas 1