Docker-compose部署redis-cluster集群的完整步骤

# 检查Docker
docker -v
# 检查Docker Compose
docker-compose -v
# 若未安装，先安装（以CentOS为例）
yum install -y docker docker-compose
systemctl start docker && systemctl enable docker

# 方式1：临时关闭防火墙（CentOS）
systemctl stop firewalld && systemctl disable firewalld
# 方式2：开放所需端口（推荐，CentOS）
firewall-cmd --add-port=7001-7006/tcp --permanent
firewall-cmd --add-port=17001-17006/tcp --permanent
firewall-cmd --reload
# Ubuntu 防火墙开放端口
ufw allow 7001-7006/tcp
ufw allow 17001-17006/tcp
ufw reload

mkdir -p redis-cluster/{7001,7002,7003,7004,7005,7006}/data
cd redis-cluster

# 创建redis1.conf
cat > redis1.conf << EOF
port 7001
protected-mode no
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
cluster-announce-ip 你的宿主机IP
cluster-announce-port 7001
cluster-announce-bus-port 17001
appendonly yes
pidfile /var/run/redis_7001.pid
EOF
# 快速生成redis2-redis6.conf（替换端口）
for port in {2..6}; do
  cp redis1.conf redis${port}.conf
  sed -i "s/7001/700${port}/g" redis${port}.conf
  sed -i "s/17001/1700${port}/g" redis${port}.conf
  sed -i "s/redis_7001/redis_700${port}/g" redis${port}.conf
done

# 注意：新版本Docker Compose可删除version字段（避免过时警告）
x-image:
  &redis-image
    redis:5.0.7
services:
  redis1:
    image: *redis-image
    container_name: redis1
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis1.conf:/home/redis/cluster/redis.conf
      - ./7001/data:/data
    ports:
      - 7001:7001
      - 17001:17001
    # 可选：添加网络模式，避免IP问题
    network_mode: "host"
  redis2:
    image: *redis-image
    container_name: redis2
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis2.conf:/home/redis/cluster/redis.conf
      - ./7002/data:/data
    ports:
      - 7002:7002
      - 17002:17002
    network_mode: "host"
  redis3:
    image: *redis-image
    container_name: redis3
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis3.conf:/home/redis/cluster/redis.conf
      - ./7003/data:/data
    ports:
      - 7003:7003
      - 17003:17003
    network_mode: "host"
  redis4:
    image: *redis-image
    container_name: redis4
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis4.conf:/home/redis/cluster/redis.conf
      - ./7004/data:/data
    ports:
      - 7004:7004
      - 17004:17004
    network_mode: "host"
  redis5:
    image: *redis-image
    container_name: redis5
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis5.conf:/home/redis/cluster/redis.conf
      - ./7005/data:/data
    ports:
      - 7005:7005
      - 17005:17005
    network_mode: "host"
  redis6:
    image: *redis-image
    container_name: redis6
    command: ["redis-server", "/home/redis/cluster/redis.conf"]
    volumes:
      - ./redis6.conf:/home/redis/cluster/redis.conf
      - ./7006/data:/data
    ports:
      - 7006:7006
      - 17006:17006
    network_mode: "host"

# 启动并后台运行容器
docker-compose up -d
# 检查容器状态（6个容器都应是Up状态）
docker-compose ps
# 或
docker ps | grep redis

docker exec -it redis1 /bin/bash

redis-cli --cluster create 你的宿主机IP:7001 你的宿主机IP:7002 你的宿主机IP:7003 你的宿主机IP:7004 你的宿主机IP:7005 你的宿主机IP:7006 --cluster-replicas 1

redis-cli -c -p 7001

127.0.0.1:7001> cluster nodes
# 输出会显示6个节点，标注主（master）/从（slave）、槽位分配等信息

127.0.0.1:7001> set name test
OK
127.0.0.1:7001> get name
"test"
# 切换节点测试（比如7002）
127.0.0.1:7001> exit
redis-cli -c -p 7002
127.0.0.1:7002> get name
# 会自动重定向到存储该key的节点并返回结果

# 停止集群容器
docker-compose stop
# 启动集群容器
docker-compose start
# 彻底删除集群（含数据，谨慎使用）
docker-compose down
rm -rf 700*/data/*  # 删除持久化数据
# 查看集群状态
docker exec -it redis1 redis-cli -c -p 7001 cluster info

chmod 777 -R 700*/data