docker搭建redis cluster

最新推荐文章于 2025-03-19 16:19:14 发布

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最新推荐文章于 2025-03-19 16:19:14 发布

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分类专栏：后端文章标签： redis docker 网络

本文链接：https://blog.youkuaiyun.com/weixin_45234710/article/details/124950614

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准备

服务器ip： 172.168.10.168

使用端口：6380 - 6385

工作目录：/opt/redis

默认redis.conf下载

下载镜像


docker pull redis:6.2.6

修改默认redis.conf作为集群配置的模板


bind 0.0.0.0
protected-mode yes
port ${PORT}
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
pidfile /var/run/redis_${PORT}.pid
loglevel notice
logfile ""
databases 16
always-show-logo no
set-proc-title yes
proc-title-template "{title} {listen-addr} {server-mode}"
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 no
repl-diskless-sync-delay 5
repl-diskless-load disabled
repl-disable-tcp-nodelay no
replica-priority 100
acllog-max-len 128
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"
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
lua-time-limit 5000
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
# ip可以是公网ip、内网ip
cluster-announce-ip 172.168.10.168
cluster-announce-port ${PORT}
cluster-announce-bus-port 1${PORT}
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-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

准备目录


# 创建生成配置文件脚本

for port in $(seq 6380 6385);

do

  mkdir -p ./${port}/{conf,data} && PORT=${port} envsubst <./redis-cluster.temp> ./${port}/conf/redis.conf;

done



# 在工作目录执行脚本

启动容器


docker run -p 6380:6380 -p 16380:6380 --name redis-1 \

-v /opt/redis/6380/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6380/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf



docker run -p 6381:6381 -p 16381:6381 --name redis-2 \

-v /opt/redis/6381/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6381/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf



docker run -p 6382:6382 -p 16382:6382 --name redis-3 \

-v /opt/redis/6382/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6382/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf



docker run -p 6383:6383 -p 16383:6383 --name redis-4 \

-v /opt/redis/6383/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6383/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf



docker run -p 6384:6384 -p 16384:6384 --name redis-5 \

-v /opt/redis/6384/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6384/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf



docker run -p 6385:6385 -p 16385:6385 --name redis-6 \

-v /opt/redis/6385/conf/redis.conf:/usr/local/etc/redis/redis.conf  \

-v /opt/redis/6385/data:/data  \

-d --net host \

redis:6.2.6 redis-server /usr/local/etc/redis/redis.conf

上一步可以采用docker-compose方式


version: '3.0'

services:

  redis1:

    image: redis:6.2.6

    container_name: redis-1

    network_mode: host

    volumes:

      - /opt/redis/7300/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7300/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

  redis2:

    image: redis:6.2.6

    container_name: redis-2

    network_mode: host

    volumes:

      - /opt/redis/7301/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7301/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

  redis3:

    image: redis:6.2.6

    container_name: redis-3

    network_mode: host

    volumes:

      - /opt/redis/7302/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7302/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

  redis4:

    image: redis:6.2.6

    container_name: redis-4

    network_mode: host

    volumes:

      - /opt/redis/7303/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7303/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

  redis5:

    image: redis:6.2.6

    container_name: redis-5

    network_mode: host

    volumes:

      - /opt/redis/7304/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7304/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

  redis6:

    image: redis:6.2.6

    container_name: redis-6

    network_mode: host

    volumes:

      - /opt/redis/7305/conf/redis.conf:/usr/local/etc/redis/redis.conf

      - /opt/redis/7305/data:/data

    command: redis-server /usr/local/etc/redis/redis.conf

构建redis集群


# 通过某一台redis容器执行构建集群的命令即可

docker exec -it redis-1 redis-cli -p 6380 --cluster create 172.168.10.168:6380 172.168.10.168:6381 172.168.10.168:6382 172.168.10.168:6383 172.168.10.168:6384 172.168.10.168:6385 --cluster-replicas 1

连接校验


# 登录任何一台redis

cluster nodes

测试


# 集群方式连接要加 -c

[root@luxun redis]# docker exec -it redis-1 redis-cli -p 6380 -a '123456' -c

Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.

127.0.0.1:6380> set name zhangsan

-> Redirected to slot [5798] located at 172.168.10.168:6381

OK

172.168.10.168:6381>

增加权限


# redis.conf下增加，一定要在上面步骤完成后再加权限，不然会报错

masterauth 123456

requirepass 123456