Docker学习笔记-Redis集群搭建

Linux版本：Ubuntu 16.04.2 LTS

Docker版本：Docker version 17.09.0-ce, build afdb6d4

Docker Compose版本：docker-compose version 1.22.0, build f46880fe

JDK版本：java version "1.8.0_102"

Redis版本：redis-5.0.5

相关构建配置文件如下：

Redis Dockerfile

From ubuntu:16.04.4
MAINTAINER xxxxx

RUN apt-get update && apt-get install -y build-essential make net-tools iputils-ping vim iptables

ADD redis-5.0.5.tar.gz /usr/local/
RUN cd /usr/local/redis-5.0.5 && make && make install

ENV REDIS_HOME=/usr/local/redis-5.0.5 \
    REDIS_CONF_DIR=/usr/local/redis-5.0.5/conf \
    REDIS_DATA_DIR=/usr/local/redis-5.0.5/data \
    REDIS_LOG_DIR=/usr/local/redis-5.0.5/logs \
    REDIS_PID_DIR=/usr/local/redis-5.0.5/pids

RUN mkdir -p "$REDIS_CONF_DIR" "$REDIS_DATA_DIR" "REDIS_LOG_DIR" "REDIS_PID_DIR"

WORKDIR $REDIS_HOME
VOLUME ["$REDIS_DATA_DIR", "$REDIS_LOG_DIR", "$REDIS_PID_DIR"]

EXPOSE 6379 16379

COPY redis.conf /usr/local/redis-5.0.5/conf/
COPY redis-entrypoint.sh /
RUN chmod +x /redis-entrypoint.sh
ENTRYPOINT ["/redis-entrypoint.sh"]

redis.conf

#bind 127.0.0.1
protected-mode no
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
#daemonize yes
supervised no
pidfile /usr/local/redis-5.0.5/pids/redis.pid
loglevel notice
logfile /usr/local/redis-5.0.5/logs/redis.log
databases 16
save 900 1
save 300 10
save 60 10000
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /usr/local/redis-5.0.5/data
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100
appendonly yes
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
lua-time-limit 5000
cluster-enabled yes
cluster-config-file /usr/local/redis-5.0.5/conf/cluster.conf
cluster-node-timeout 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
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes

redis-entrypoint.sh

#!/bin/bash

set -e

redis-server /usr/local/redis-5.0.5/conf/redis.conf

exec "[email protected]"

docker build --no-cache -t redis:5.0.5 images/redis

docker-compose.yml

version: '3.4'

services:
  redis1:
    image: redis:5.0.5
    restart: always
    hostname: redis1
    container_name: redis1
    ports:
    - 16373:6379
    - 26373:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6373/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6373/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6373/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6373

  redis2:
    image: redis:5.0.5
    restart: always
    hostname: redis2
    container_name: redis2
    ports:
    - 16374:6379
    - 26374:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6374/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6374/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6374/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6374

  redis3:
    image: redis:5.0.5
    restart: always
    hostname: redis3
    container_name: redis3
    ports:
    - 16375:6379
    - 26375:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6375/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6375/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6375/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6375

  redis4:
    image: redis:5.0.5
    restart: always
    hostname: redis4
    container_name: redis4
    ports:
    - 16376:6379
    - 26376:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6376/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6376/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6376/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6376

  redis5:
    image: redis:5.0.5
    restart: always
    hostname: redis5
    container_name: redis5
    ports:
    - 16377:6379
    - 26377:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6377/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6377/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6377/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6377

  redis6:
    image: redis:5.0.5
    restart: always
    hostname: redis6
    container_name: redis6
    ports:
    - 16378:6379
    - 26378:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6378/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6378/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6378/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6378

  redis7:
    image: redis:5.0.5
    restart: always
    hostname: redis7
    container_name: redis7
    ports:
    - 16379:6379
    - 26379:16379
    volumes:
    - "/home/docker/redis-5.0.5/cluster/6379/data:/usr/local/redis-5.0.5/data"
    - "/home/docker/redis-5.0.5/cluster/6379/logs:/usr/local/redis-5.0.5/logs"
    - "/home/docker/redis-5.0.5/cluster/6379/pids:/usr/local/redis-5.0.5/pids"
    environment:
      REDIS_PORT: 6378
    command: redis-cli --cluster create 172.25.0.2:6379 172.25.0.3:6379 172.25.0.4:6379 172.25.0.5:6379 172.25.0.6:6379 172.25.0.7:6379 --cluster-replicas 1
    depends_on:
    - redis1
    - redis2
    - redis3
    - redis4
    - redis5
    - redis6

docker-compose up -d

进入容器redis7测试验证Redis集群

# docker exec -it redis7 /bin/bash

redis-5.0.0版本开始，redis-trib.rb的功能被redis-cli替代

# redis-cli --cluster check 172.25.0.2:6379

# redis-cli --cluster info 172.25.0.2:6379

# redis-cli --cluster add-node 172.25.0.9:6379

# redis-cli --cluster add-node 172.25.0.10:6379 --cluster-slave --cluster-master-id 58f0b38a4e605b3369d3843a89a2b4a164ed21e8

# redis-cli --cluster del-node 172.25.0.10:6379 48f0b38a4e605b3369d3843a89a2b4a164ed21e8

# redis-cli -c -h 172.25.0.2 -p 6379

172.25.0.2:6379> cluster info

 

Redis 5 以前版本集群环境的构建可以参考：

Redis 4.x.x Cluster Dockerfile

From redis:4.x.x
MAINTAINER xxxxx

ADD zlib-1.2.11.tar.gz /usr/local/
RUN cd /usr/local/zlib-1.2.11 && ./configure && make && make install

ADD openssl-1.0.2l.tar.gz /usr/local/
RUN cd /usr/local/openssl-1.0.2l && ./config && make && make install

ADD ruby-2.6.3.tar.gz /usr/local/
RUN cd /usr/local/ruby-2.6.3 && ./configure --with-openssl-dir=/usr/local/openssl-1.0.2l && make && make install

COPY redis-4.1.2.gem /usr/local/redis-4.x.x/
RUN gem install -l /usr/local/redis-5.0.5/redis-4.1.2.gem

COPY redis-cluster-entrypoint.sh /
RUN chmod +x /redis-cluster-entrypoint.sh
ENTRYPOINT ["/redis-cluster-entrypoint.sh"]

redis-trib.rb create --replicas 1 172.25.0.2:6379 172.25.0.3:6379 172.25.0.4:6379 172.25.0.5:6379 172.25.0.6:6379 172.25.0.7:6379