1.准备docker-compose.yml

新建一个文件，文件名为docker-compose.yml

yml

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services: redis-node-0: image: redis:latest container_name: redis-cluster-6370 networks: redis-network: ipv4_address: 172.19.0.10 ports: - "6370:6370" - "16370:16370" volumes: - ~/local/redis/cluster/redis0.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data0:/data environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_CREATOR=yes' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' command: redis-server /usr/local/etc/redis/redis.conf redis-node-1: image: redis:latest container_name: redis-cluster-6371 networks: redis-network: ipv4_address: 172.19.0.11 ports: - "6371:6371" - "16371:16371" volumes: - ~/local/redis/cluster/redis1.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data1:/data environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_CREATOR=yes' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' command: redis-server /usr/local/etc/redis/redis.conf redis-node-2: image: redis:latest container_name: redis-cluster-6372 networks: redis-network: ipv4_address: 172.19.0.12 ports: - "6372:6372" - "16372:16372" volumes: - ~/local/redis/cluster/redis2.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data2:/data environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_CREATOR=yes' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' command: redis-server /usr/local/etc/redis/redis.conf redis-node-3: image: redis:latest container_name: redis-cluster-6373 networks: redis-network: ipv4_address: 172.19.0.13 ports: - "6373:6373" - "16373:16373" volumes: - ~/local/redis/cluster/redis3.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data3:/data environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_CREATOR=yes' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' command: redis-server /usr/local/etc/redis/redis.conf redis-node-4: image: redis:latest container_name: redis-cluster-6374 networks: redis-network: ipv4_address: 172.19.0.14 ports: - "6374:6374" - "16374:16374" volumes: - ~/local/redis/cluster/redis4.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data4:/data environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_CREATOR=yes' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' command: redis-server /usr/local/etc/redis/redis.conf redis-node-5: image: redis:latest container_name: redis-cluster-6375 networks: redis-network: ipv4_address: 172.19.0.15 ports: - "6375:6375" - "16375:16375" volumes: - ~/local/redis/cluster/redis5.conf:/usr/local/etc/redis/redis.conf - ~/local/redis/cluster/data5:/data depends_on: - redis-node-0 - redis-node-1 - redis-node-2 - redis-node-3 - redis-node-4 environment: - 'REDIS_PASSWORD=bitnami' - 'REDISCLI_AUTH=bitnami' - 'REDIS_CLUSTER_REPLICAS=1' - 'REDIS_NODES=redis-cluster-6370 redis-cluster-6371 redis-cluster-6372 redis-cluster-6373 redis-cluster-6374 redis-cluster-6375' - 'REDIS_CLUSTER_CREATOR=yes' command: redis-server /usr/local/etc/redis/redis.conf networks: redis-network: external: true

注意：有一些地方需要修改！！！

• [~]我在实践的时候使用的绝对路径，这里用相对路径来表达
• ip地址可以换自己的地址。我这里固定了一个redis-network的网络，而且不是新建的。
• networks，如果自己本地没有，则需要新建一个，新建的命令为下面的内容
• 自己映射的路径要有配置文件
• 完了之后，还要执行一系列的命令，让集群运行起来

新建网络内容举例

yml

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networks: redis-network: driver: bridge ipam: config: - subnet: 172.19.0.0/16 - gateway: 172.19.0.1

我的文件夹结构

2.运行集群

集群运行起来之后，可以进入容器，然后使用命令进入某一个节点。比如： redis-cli -h 172.19.0.10 -p 6370 -a bitnami，（这里 ip和端口号要与你的一致，否则连接不了）。之后运行命令 CLUSTER info 查看集群状态，此时显示cluster_state:fail 未启动。我们需要对集群的机器进行分配槽，分配主从。

2.1.加入集群

使用命令cluster meet 172.19.0.11 6371 让6371加入到集群中去。同理，将6372 ~ 6375都加入到集群中。这里需要注意的是，只需要在一个机器中添加即可。

添加完成后，使用CLUSTER nodes 查看各个节点，就可以看到一共有6个节点，不过都是master节点，这个时候，需要给各个节点分配角色，是主节点还是从节点。

2.1.分配槽

使用命令给3个节点分配槽

cli

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redis-cli -h 10.8.13.106 -p 6370 -a bitnami cluster addslots $(seq 0 5461) redis-cli -h 10.8.13.106 -p 6371 -a bitnami cluster addslots $(seq 5462 10922) redis-cli -h 10.8.13.106 -p 6372 -a bitnami cluster addslots $(seq 10923 16383)

如果少分配槽，或者0~16383 有任何槽没有分配到节点，都是启动不成功的，因为槽没有分配完成。

少分配槽，就需要将对应的槽添加到节点中去，可以使用redis-cli -h 10.8.13.106 -p 6370 -a bitnami cluster ADDSLOTS 0 命令将槽添加进去。（我这里是将槽0添加进去了）

完成后示例： 

2.3.分配主从

注意，分配主从需要进入到对应的从节点，然后执行命令。

进入从节点，让该从节点复制其主节点，命令如下：

css

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redis-cli -h 10.8.13.106 -p 6373 -a bitnami cluster replicate fb62e193fd0b733863764a8654fa0d88d209196c redis-cli -h 10.8.13.106 -p 6374 -a bitnami cluster replicate 17d1c5a8cd5b3d2ebbc281a6f5087b516ccd8113 redis-cli -h 10.8.13.106 -p 6375 -a bitnami cluster replicate 701511073d1426a7826c4c8b0ae2a8466e294dcc

我这里，进入了3、4、5三个从节点，然后让他们去复制主节点。后面的是主节点的id，这个id，可以在任意节点，使用CLUSTER nodes查看。分配完的节点状态如下： 

附：redis集群搭建我用的配置文件，这里的配置文件取自redis源码。redis0.conf

conf

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bind 0.0.0.0 protected-mode yes # 要改 port 6370 tcp-backlog 511 timeout 0 tcp-keepalive 300 daemonize no # pidfile /opt/bitnami/redis/tmp/redis.pid pidfile /var/run/redis_6379.pid loglevel notice logfile "" databases 16 always-show-logo no set-proc-title yes proc-title-template "{title} {listen-addr} {server-mode}" locale-collate "" stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb rdb-del-sync-files no dir ./ replica-serve-stale-data yes replica-read-only yes repl-diskless-sync yes repl-diskless-sync-delay 5 repl-diskless-sync-max-replicas 0 repl-diskless-load disabled repl-disable-tcp-nodelay no replica-priority 100 acllog-max-len 128 # 这里要改，注意，如果有，这两个都要有。 requirepass bitnami masterauth bitnami lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no replica-lazy-flush no lazyfree-lazy-user-del no lazyfree-lazy-user-flush no oom-score-adj no oom-score-adj-values 0 200 800 disable-thp yes appendonly no appendfilename "appendonly.aof" appenddirname "appendonlydir" appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb aof-load-truncated yes aof-use-rdb-preamble yes aof-timestamp-enabled no cluster-enabled yes cluster-config-file nodes.conf # 这里要改 cluster-announce-ip 172.19.0.10 cluster-announce-ip 10.8.13.106 cluster-announce-port 6370 cluster-announce-bus-port 16370 slowlog-log-slower-than 10000 slowlog-max-len 128 latency-monitor-threshold 0 notify-keyspace-events "" hash-max-listpack-entries 512 hash-max-listpack-value 64 list-max-listpack-size -2 list-compress-depth 0 set-max-intset-entries 512 set-max-listpack-entries 128 set-max-listpack-value 64 zset-max-listpack-entries 128 zset-max-listpack-value 64 hll-sparse-max-bytes 3000 stream-node-max-bytes 4096 stream-node-max-entries 100 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit replica 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 dynamic-hz yes aof-rewrite-incremental-fsync yes rdb-save-incremental-fsync yes jemalloc-bg-thread yes