关于redis:基于Docker搭建Redis集群

先决条件

装置docker、docker-compose.

docker-compose.yml文件

version: '3'
services:
  redis-node01:
    container_name: redis-node01
    image: docker.io/redis:6.0.7-alpine
    ports:
      - "6378:6379"
    volumes:
      - /data/redis/data/master:/data
      - /data/redis/config:/usr/local/etc/redis
    networks:
      - redis-network
    restart: always
    command: redis-server /usr/local/etc/redis/redis.conf --appendonly yes --appendfsync everysec
    labels:
      registory: 'office-registry'
      editor: 'huyindu'
  redis-node02:
    container_name: redis-node02
    image: docker.io/redis:6.0.7-alpine
    ports:
      - "6377:6379"
    volumes:
      - /data/redis/data/slave01:/data
      - /data/redis/config:/usr/local/etc/redis
    networks:
      - redis-network
    restart: always
    command: redis-server /usr/local/etc/redis/redis.conf --appendonly yes --appendfsync everysec
    labels:
      registory: 'office-registry'
      editor: 'huyindu'
  redis-node03:
    container_name: redis-node03
    image: docker.io/redis:6.0.7-alpine
    ports:
      - "6376:6379"
    volumes:
      - /data/redis/data/slave02:/data
      - /data/redis/config:/usr/local/etc/redis
    networks:  - redis-network
    restart: always
    command: redis-server /usr/local/etc/redis/redis.conf --appendonly yes --appendfsync everysec
    labels:
      registory: 'office-registry'
      editor: 'huyindu'
networks:
  redis-network:
    driver: bridge

批改Redis配置文件

咱们先下载Redis的官网配置文件，下载地址：http://download.redis.io/redis-stable/redis.conf

批改局部配置

cluster-enabled yes #启用集群
bind 0.0.0.0    #默认127.0.0.1只能本地拜访，改为0.0.0.0，所有主机都能拜访

通过docker-compose装置redis节点

在docker-compose.yml所在目录下执行如下命令：docker-compose up -d.执行后会运行三个redis节点,别离为redis-node01、redis-node02、redis-node03.
注：此时的三个redis节点是互相独立的，还不是集群。

将多个node节点组成集群

进入任意一个节点容器，执行一下命令，ip地址替换成你本身的节点IP,IP是生成的三个节点的容器外部IP，能够通过执行`docker
inspect docker容器id | grep Address`查看容器IP信息

redis-cli --cluster create 172.18.0.4:6379 172.18.0.3:6379 172.18.0.2:6379 -- cluster-replicas 0

在节点容器内输出redis-cli -c，查看集群信息cluster info,

cluster_state:ok  #<---如果此处为ok阐明集群创立胜利
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:3
cluster_size:3
cluster_current_epoch:3
cluster_my_epoch:1
cluster_stats_messages_ping_sent:218
cluster_stats_messages_pong_sent:217
cluster_stats_messages_sent:435
cluster_stats_messages_ping_received:215
cluster_stats_messages_pong_received:218
cluster_stats_messages_meet_received:2
cluster_stats_messages_received:435

此时通过set设置key-value的时候，就会将key-value增加到3个不同的节点中去了，三个节点的总key数就是全量key,每个节点仅存储各自的key汇合，然而在集群不同节点都能够get到其余节点key的value值。