docker搭建redis集群

Docker 搭建redis集群

此次搭建一个6节点的Redis集群，包括3个主节点和3个从节点。

安装目录 /usr/local/docker/redis-cluster 没有目录要新建此目录

cd /usr/local/docker/redis-cluster

一、编写docker-compose.yml 文件

vi docker-compose.yml

version: "3"
services:
  redis-master1:
    image: redis:5.0 # 基础镜像
    container_name: redis-master1 # 容器名称
    working_dir: /config # 切换工作目录
    environment: # 环境变量
      - PORT=6374 # 会使用config/nodes-${PORT}.conf这个配置文件
    ports: # 映射端口，对外提供服务
      - 6374:6374 # redis的服务端口
      - 16374:16374 # redis集群监控端口
    stdin_open: true # 标准输入打开
    tty: true # 后台运行不退出
    network_mode: host # 使用host模式
    privileged: true # 拥有容器内命令执行的权限
    volumes:
      - /usr/local/docker/redis-cluster/config:/config #配置文件目录映射到宿主机
    entrypoint: # 设置服务默认的启动程序
      - /bin/bash
      - redis.sh
  redis-master2:
    image: redis:5.0
    working_dir: /config
    container_name: redis-master2
    environment:
      - PORT=6375
    ports:
      - 6375:6375
      - 16375:16375
    stdin_open: true
    network_mode: host
    tty: true
    privileged: true
    volumes:
      - /usr/local/docker/redis-cluster/config:/config
    entrypoint:
      - /bin/bash
      - redis.sh
  redis-master3:
    image: redis:5.0
    container_name: redis-master3
    working_dir: /config
    environment:
      - PORT=6376
    ports:
      - 6376:6376
      - 16376:16376
    stdin_open: true
    network_mode: host
    tty: true
    privileged: true
    volumes:
      - /usr/local/docker/redis-cluster/config:/config
    entrypoint:
      - /bin/bash
      - redis.sh
  redis-slave1:
    image: redis:5.0
    container_name: redis-slave1
    working_dir: /config
    environment:
      - PORT=6377
    ports:
      - 6377:6377
      - 16377:16377
    stdin_open: true
    network_mode: host
    tty: true
    privileged: true
    volumes:
      - /usr/local/docker/redis-cluster/config:/config
    entrypoint:
      - /bin/bash
      - redis.sh
  redis-slave2:
    image: redis:5.0
    working_dir: /config
    container_name: redis-slave2
    environment:
      - PORT=6378
    ports:
      - 6378:6378
      - 16378:16378
    stdin_open: true
    network_mode: host
    tty: true
    privileged: true
    volumes:
      - /usr/local/docker/redis-cluster/config:/config
    entrypoint:
      - /bin/bash
      - redis.sh
  redis-slave3:
    image: redis:5.0
    container_name: redis-slave3
    working_dir: /config
    environment:
      - PORT=6379
    ports:
      - 6379:6379
      - 16379:16379
    stdin_open: true
    network_mode: host
    tty: true
    privileged: true
    volumes:
      - /usr/local/docker/redis-cluster/config:/config
    entrypoint:
      - /bin/bash
      - redis.sh

二、 新建config目录，并配置好相关配置信息

mkdir config
进入config目录
cd config

  1. 配置 nodes-6374.conf 配置文件

vi nodes-6374.conf

bind 0.0.0.0
protected-mode no
port 6374
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6374.conf
cluster-node-timeout 15000
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
  1. 配置nodes-6375.conf 配置文件

vi nodes-6375.conf

bind 0.0.0.0
protected-mode no
port 6375
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6375.conf
cluster-node-timeout 15000
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
  1. 配置 nodes-6376.conf 配置文件

vi nodes-6376.conf

bind 0.0.0.0
protected-mode no
port 6376
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6376.conf
cluster-node-timeout 15000
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
  1. 配置 nodes-6377.conf 配置文件
    vi nodes-6377.conf 
bind 0.0.0.0
protected-mode no
port 6377
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6377.conf
cluster-node-timeout 15000
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
  1. 配置 nodes-6378.conf 配置文件

vi nodes-6378.conf

bind 0.0.0.0
protected-mode no
port 6378
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6378.conf
cluster-node-timeout 15000
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
  1. nodes-6379.conf 配置文件

vi nodes-6379.conf

bind 0.0.0.0
protected-mode no
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300

daemonize no
supervised no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""
databases 16
always-show-logo yes

save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir "/data"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

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-6379.conf
cluster-node-timeout 15000
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

三、 配置redis.sh 配置信息

vi redis.sh

redis-server /config/nodes-${PORT}.conf

四、启动redis，并初始化集群配置

  • 配置好后进入 /usr/local/docker/redis-cluster 目录，执行docker-compose up -d 启动，启动后进入redis容器,初始化redis集群配置
# 进入Redis容器
docker exec -it redis-master1 /bin/bash
# 初始化Redis集群命令
redis-cli --cluster create \
192.168.118.131:6374 192.168.118.131:6375 192.168.118.131:6376 \
192.168.118.131:6377 192.168.118.131:6378 192.168.118.131:6379 \
--cluster-replicas 1
  • 集群创建过程中会让你确认配置，输入yes确认即可；
image
  • 创建成功后我们可以使用redis-cli命令连接到其中一个Redis服务；
# 单机模式启动
redis-cli -h 127.0.0.1 -p 6374
# 集群模式启动
redis-cli -c -h 127.0.0.1 -p 6374
  • 通过cluster nodes命令可以查看节点信息，发现符合3主3从的预期。

redis 的节点信息如下

image

springboot 整合 redis集群

application.yml

spring:
# redis 集群配置方式一
#  redis:
#    password: # Redis服务器连接密码（默认为空）
#    timeout: 3000ms # 连接超时时间
#    jedis:
#      pool:
#        # 连接池最大连接数（使用负值表示没有限制）
#        max-active: 8
#        # 连接池中的最大空闲连接
#        max-idle: 8 # 连接池最大空闲连接数
#        # 连接池中的最小空闲连接
#        min-idle: 0 # 连接池最小空闲连接数
#        # 连接池最大阻塞等待时间（使用负值表示没有限制）
#        max-wait: -1ms # 连接池最大阻塞等待时间，负值表示没有限制
#        # 超时关闭时间
#      shutdown-timeout: 100ms
#    cluster:
#      nodes:
#        - 192.168.118.131:6374
#        - 192.168.118.131:6375
#        - 192.168.118.131:6376
#        - 192.168.118.131:6377
#        - 192.168.118.131:6378
#        - 192.168.118.131:6379
  # redis 集群配置方式二
  redis:
    password:
    cluster:
      nodes: 192.168.118.131:6374,192.168.118.131:6375,192.168.118.131:6376,192.168.118.131:6377,192.168.118.131:6378,192.168.118.131:6379
      max-redirects: 6
      jedis:
        shutdown-timeout: 100ms
        pool:
          max-idle: 8
          max-active: 32
          min-idle: 8
          max-wait: -1ms # 连接池最大阻塞等待时间，负值表示没有限制
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