docker下安装redis集群

docker-compose.yml

master:
  image: redis:4
  container_name: redis-cluster_master
  command: redis-server --port 6379
  restart: always
  ports:
    - "6379"
  net: "host"
slave_1:
  image: redis:4
  container_name: redis-cluster_slave_1
  command: redis-server --port 6380 --slaveof 192.168.80.19 6379
  restart: always
  ports:
    - "6380"
  net: "host"
slave_2:
  image: redis:4
  container_name: redis-cluster_slave_2
  command: redis-server --port 6381 --slaveof 192.168.80.19 6379
  restart: always
  ports:
    - "6381"
  net: "host"
sentinel_1:
  build: sentinel
  container_name: redis-cluster_sentinel_1
  restart: always
  environment:
    - SENTINEL_PORT=26379
    - SENTINEL_DOWN_AFTER=5000
    - SENTINEL_FAILOVER=5000
  ports:
    - "26379"
  net: "host"
sentinel_2:
  build: sentinel
  container_name: redis-cluster_sentinel_2
  restart: always
  environment:
    - SENTINEL_PORT=26380
    - SENTINEL_DOWN_AFTER=5000
    - SENTINEL_FAILOVER=5000
  ports:
    - "26380"
  net: "host"
sentinel_3:
  build: sentinel
  container_name: redis-cluster_sentinel_3
  restart: always
  environment:
    - SENTINEL_PORT=26381
    - SENTINEL_DOWN_AFTER=5000
    - SENTINEL_FAILOVER=5000
  ports:
    - "26381"
  net: "host"

Dockerfile

FROM redis:4

ADD sentinel.conf /etc/redis/sentinel.conf
RUN chown redis:redis /etc/redis/sentinel.conf
ENV SENTINEL_QUORUM 2
ENV SENTINEL_DOWN_AFTER 30000
ENV SENTINEL_FAILOVER 180000
COPY sentinel-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/sentinel-entrypoint.sh
ENTRYPOINT ["sentinel-entrypoint.sh"]

sentinel.conf

# Example sentinel.conf can be downloaded from http://download.redis.io/redis-stable/sentinel.conf

port $SENTINEL_PORT

dir /tmp

sentinel monitor mymaster 192.168.80.19 6379 $SENTINEL_QUORUM

sentinel down-after-milliseconds mymaster $SENTINEL_DOWN_AFTER

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster $SENTINEL_FAILOVER

sentinel-entrypoint.sh

#!/bin/sh

sed -i "s/\$SENTINEL_QUORUM/$SENTINEL_QUORUM/g" /etc/redis/sentinel.conf
sed -i "s/\$SENTINEL_DOWN_AFTER/$SENTINEL_DOWN_AFTER/g" /etc/redis/sentinel.conf
sed -i "s/\$SENTINEL_FAILOVER/$SENTINEL_FAILOVER/g" /etc/redis/sentinel.conf
sed -i "s/\$SENTINEL_PORT/$SENTINEL_PORT/g" /etc/redis/sentinel.conf

exec docker-entrypoint.sh redis-server /etc/redis/sentinel.conf --sentinel

只要在redis-cluster目录下，依次执行以下命令即可

注意：192.168.80.19为本机ip

docker-compose build
docker-compose up -d

附上springboot的配置

application.yml

#Spring配置
spring
  redis:
    #host: 192.168.80.19
    #port: 6379
    password:
    database: 0
    sentinel:
      master: mymaster
      nodes: 192.168.80.19:26379,192.168.80.19:26380,192.168.80.19:26381