1. redis 5.0.x 创建集群

1. 安装docker
2. 编译redis
   • 下载最新5.xredis

wget http://download.redis.io/releases/redis-5.0.3.tar.gz
tar -zxvf redis-5.0.3.tar.gz
cd redis-5.0.3
make 

3. 获取redis-cli 和redis.conf
4. 修redis.conf

#注释掉
#bind 127.0.0.1
#修改为no
protected-mode no

#修改为yes
appendonly yes
appendfilename "appendonly.aof"

appendfsync everysec
#修改为yes
cluster-enabled yes

5. 创建 docker-compose.yml

注意

• docker容器要使用固定ip
• redis集群不支持NAT模式
• 开放两个端口号,集群端口号为redis端口号+10000
• 修改command,执行启动时配置文件

version: '2'
services:
   redis1:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis1
       ports:
           - "6301:6379"
           - "16301:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data1:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.11
   redis2:
       image: redis:5.0.3 
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis2
       ports:
           - "6302:6379"
           - "16302:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data2:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.12
   redis3:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis3
       ports:
           - "6303:6379"
           - "16303:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data3:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.13
   redis4:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis4
       ports:
           - "6304:6379"
           - "16304:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data4:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.14
   redis5:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis5
       ports:
           - "6305:6379"
           - "16305:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data5:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.15
   redis6:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis6
       ports:
           - "6306:6379"
           - "16306:6379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data6:/data"
       networks:
           redis_net:
               ipv4_address: 172.22.0.16
   redis7:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis7
       ports:
           - "6307:6379"
           - "16307:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data7:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.17
   redis8:
       image: redis:5.0.3
       command: ["redis-server","/usr/local/etc/redis/redis.conf"]
       restart: always
       container_name: redis8
       ports:
           - "6308:6379"
           - "16308:16379"
       volumes:
           - /data/redis/redis.conf:/usr/local/etc/redis/redis.conf
           - /data/redis/data8:/data
       networks:
           redis_net:
               ipv4_address: 172.22.0.18
networks:
  redis_net:
     ipam:
        config:
        - subnet: 172.22.0.0/16
          gateway: 172.22.0.1

查看容器ip

 docker inspect --format='{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -aq)

6. 创建 集群

cluster-replicas 副本数量
ip要使用容器的ip不能使用映射端口号,redis 目前(5.0.3)不支持NAT集群

redis-cli --cluster create 172.22.0.11:6379  172.22.0.12:6379  172.22.0.13:6379  172.22.0.14:6379  172.22.0.15:6379  172.22.0.16:6379    --cluster-replicas 1

7. 查看集群信息

./redis-cli -c -h 127.0.0.1  -p 6301

127.0.0.1:6301> CLUSTER nodes

c263c43e4f4c7b77baa9cad7befcd7d95b59e604 172.22.0.14:6379@16379 slave c87c0343330eaea324e322717093a7472c7a1c61 0 1546923044864 4 connected
91870f32b9697c8176c4a9f73c2ea2b1a0b5ac98 172.22.0.12:6379@16379 master - 0 1546923043861 2 connected 5461-10922
c87c0343330eaea324e322717093a7472c7a1c61 172.22.0.11:6379@16379 myself,master - 0 1546923041000 1 connected 0-5460
ec06c901c1c52140856c9cb6450bb07e601a6dff 172.22.0.15:6379@16379 slave 91870f32b9697c8176c4a9f73c2ea2b1a0b5ac98 0 1546923042858 5 connected
4f9f32bcc9f26da82d04e7f110a994f9f989e390 172.22.0.16:6379@16379 slave de6458c693e2e11014615f22a92b89ead28eb8c5 0 1546923043000 6 connected
de6458c693e2e11014615f22a92b89ead28eb8c5 172.22.0.13:6379@16379 master - 0 1546923041000 3 connected 10923-16383