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Docker 部署 Redis

Redis 是高性能的内存数据库，常用于缓存、会话存储、消息队列。

快速开始​

单机部署​

docker run -d \
  --name redis \
  -p 6379:6379 \
  -v redis-data:/data \
  redis:7-alpine \
  redis-server --appendonly yes

带密码部署​

docker run -d \
  --name redis \
  -p 6379:6379 \
  -v redis-data:/data \
  redis:7-alpine \
  redis-server --appendonly yes --requirepass 123456

使用配置文件​

1. 创建配置文件​

mkdir -p /etc/redis/conf
cat > /etc/redis/conf/redis.conf << EOF
# 绑定地址
bind 0.0.0.0

# 端口
port 6379

# 密码
requirepass 123456

# 持久化
appendonly yes
appendfilename "appendonly.aof"

# 内存限制
maxmemory 1gb
maxmemory-policy allkeys-lru

# 日志
loglevel notice
logfile "/data/redis.log"
EOF

2. 启动容器​

docker run -d \
  --name redis \
  -p 6379:6379 \
  -v /etc/redis/conf/redis.conf:/etc/redis/redis.conf \
  -v redis-data:/data \
  redis:7-alpine \
  redis-server /etc/redis/redis.conf

集群部署​

Redis Sentinel（哨兵）​

version: '3.8'

services:
  redis-master:
    image: redis:7-alpine
    container_name: redis-master
    ports:
      - "6379:6379"
    command: redis-server --appendonly yes --requirepass 123456

  redis-slave1:
    image: redis:7-alpine
    container_name: redis-slave1
    ports:
      - "6380:6379"
    command: redis-server --appendonly yes --requirepass 123456 --slaveof redis-master 6379

  redis-slave2:
    image: redis:7-alpine
    container_name: redis-slave2
    ports:
      - "6381:6379"
    command: redis-server --appendonly yes --requirepass 123456 --slaveof redis-master 6379

  sentinel:
    image: redis:7-alpine
    container_name: redis-sentinel
    ports:
      - "26379:26379"
    volumes:
      - ./sentinel.conf:/etc/redis/sentinel.conf
    command: redis-sentinel /etc/redis/sentinel.conf

Redis Cluster​

version: '3.8'

services:
  redis-node1:
    image: redis:7-alpine
    container_name: redis-node1
    ports:
      - "6379:6379"
    command: redis-server --appendonly yes --cluster-enabled yes --cluster-config-file nodes.conf --cluster-node-timeout 5000

  redis-node2:
    image: redis:7-alpine
    container_name: redis-node2
    ports:
      - "6380:6379"
    command: redis-server --appendonly yes --cluster-enabled yes --cluster-config-file nodes.conf --cluster-node-timeout 5000

  redis-node3:
    image: redis:7-alpine
    container_name: redis-node3
    ports:
      - "6381:6379"
    command: redis-server --appendonly yes --cluster-enabled yes --cluster-config-file nodes.conf --cluster-node-timeout 5000

常用命令​

# 连接 Redis
docker exec -it redis redis-cli -a 123456

# 查看信息
docker exec -it redis redis-cli -a 123456 INFO

# 查看内存
docker exec -it redis redis-cli -a 123456 INFO memory

# 查看连接数
docker exec -it redis redis-cli -a 123456 INFO clients

# 清空数据
docker exec -it redis redis-cli -a 123456 FLUSHALL

运维建议​

建议说明
持久化启用 AOF 持久化
密码生产环境必须设置密码
内存限制设置 maxmemory 限制
备份定期备份数据
监控监控内存、连接数、命中率

故障排查​

问题解决方案
连接失败检查端口、密码配置
内存不足增加 maxmemory 或清理数据
持久化失败检查磁盘空间
性能问题检查慢查询日志

相关文档​