Singleton Redis

通过 docker-compose 快速创建单实例 Redis 容器，可以通过 localhost:6379 连接。通过 Volumn 将 redis 配置文件映射到 Docker 容器内，通过配置文件启动容器

  1. version: '3'
  2. services:
  3.   redis: 
  4.     image: redis:4.0.8-alpine
  5.     container_name: db-redis
  6.     restart: always
  7.     ports:
  8.       - 6379:6379
  9.     networks:
  10.       - net_db
  11.     volumes:
  12.       - ./redis/config:/docker/config
  13.       - ./redis/data:/data
  14.     command: redis-server /docker/config/redis.conf
  15. networks:
  16.   net_db:
  17.     external: true

代码 1：Singleton Redis

简单的配置如下所示

  1. bind 0.0.0.0
  2. port 6379
  3. logfile "6379.log"
  4. dbfilename "dump-6379.rdb"
  5. daemonize yes
  6. rdbcompression yes

代码 2：Base Config

Master-Slave Cluster

docker-compose 创建单个容器并没有太大优势，它用于需要多个容器相互协同，共享网络和存储的场景。

首先创建 master 和 slave 的配置文件，对于 master 来说，不需要特殊配置，slave 需要指定从 master 同步。因为使用 docker-compose 创建的容器可以在同一网络呢，通过容器名 redis-master 即可访问到 master 容器。

  1. # master.conf
  2. bind 0.0.0.0
  3. port 6379
  4. dbfilename dump-master.rdb
  5. logfile "my-redis-master.log"

代码 3：master config

  1. bind 0.0.0.0
  2. port 6379
  3. dbfilename dump-slave1.rdb
  4. logfile "my-redis-slave1.log"
  5. replicaof redis-master 6379

代码 4：Slave Config

需要为三个容器指定相同的网络，并且分配不同的端口

  1. version: "3"
  3. services:
  4.   redis-master:
  5.     container_name: redis-master
  6.     image: redis
  7.     hostname: redis-master
  8.     networks:
  9.       - redis-replica-net
  10.     volumes:
  11.       - ./config/master.conf:/docker/config/redis.conf
  12.       - ./master/data:/data
  13.     ports:
  14.       - "40001:6379"
  15.     command: redis-server /docker/config/redis.conf
  16.   redis-slave1:
  17.     container_name: redis-slave1
  18.     image: redis
  19.     hostname: redis-slave1
  20.     depends_on:
  21.         - redis-master
  22.     networks:
  23.         - redis-replica-net
  24.     volumes:
  25.       - ./config/slave1.conf:/docker/config/redis.conf
  26.       - ./slave1/data:/data
  27.     ports:
  28.       - "40002:6379"
  29.     command: redis-server /docker/config/redis.conf
  30.   redis-slave2:
  31.     container_name: redis-slave2
  32.     image: redis
  33.     hostname: redis-slave2
  34.     depends_on:
  35.         - redis-master
  36.     networks:
  37.         - redis-replica-net
  38.     volumes:
  39.       - ./config/slave2.conf:/docker/config/redis.conf
  40.       - ./slave2/data:/data
  41.     ports:
  42.       - "40003:6379"
  43.     command: redis-server /docker/config/redis.conf
  44. networks:
  45.   redis-replica-net:
  46.     driver: bridge

代码 5：Master Slave Config

Sentinel Cluster

Redis 提供 Sentinel 机制，提供了自动容错的能力，这里的 Sentinal 节点也需要三个及以上。Master 及 Slave 的配置与原先没有任何区别。

sentinel 中需要指定 master 的 IP 和端口，以及监测 master 存活的过期时间，三个 Sentinal 的配置文件都是相同的。

  1. port 26379
  3. sentinel monitor mymaster redis-master 6379 1
  4. sentinel down-after-milliseconds mymaster 3000
  5. sentinel failover-timeout mymaster 10000
  7. protected-mode no
  8. logfile "sentinel.log"

代码 6：Sentianl Config

下面简单介绍一下 Sentinal 的同步过程，在配置文件中，Sentinal 只配置了 Master 节点的端口，所以 Sentinal 启动之后，首先就要连接 Master 节点。

  1. version: "3"
  3. services:
  4.   redis-master:
  5.     container_name: redis-master
  6.     image: redis
  7.     hostname: redis-master
  8.     networks:
  9.       - redis-replica-net
  10.     volumes:
  11.       - ./config/master.conf:/docker/config/redis.conf
  12.       - ./master/data:/data
  13.     ports:
  14.       - "127.0.0.1:40001:6379"
  15.     command: redis-server /docker/config/redis.conf
  17.   redis-slave1:
  18.     container_name: redis-slave1
  19.     image: redis
  20.     hostname: redis-slave1
  21.     depends_on:
  22.         - redis-master
  23.     networks:
  24.         - redis-replica-net
  25.     volumes:
  26.       - ./config/slave1.conf:/docker/config/redis.conf
  27.       - ./slave1/data:/data
  28.     ports:
  29.       - "127.0.0.1:40002:6379"
  30.     command: redis-server /docker/config/redis.conf
  32.   redis-slave2:
  33.     container_name: redis-slave2
  34.     image: redis
  35.     hostname: redis-slave2
  36.     depends_on:
  37.         - redis-master
  38.         - redis-slave1
  39.     networks:
  40.         - redis-replica-net
  41.     volumes:
  42.       - ./config/slave2.conf:/docker/config/redis.conf
  43.       - ./slave2/data:/data
  44.     ports:
  45.       - "127.0.0.1:40003:6379"
  46.     command: redis-server /docker/config/redis.conf
  48.   redis-sentinel1:
  49.     container_name: redis-sentinel1
  50.     image: redis
  51.     hostname: redis-sentinel1
  52.     networks:
  53.       - redis-replica-net
  54.     volumes:
  55.       - ./config/sentinel.conf:/docker/config/sentinel.conf
  56.       - ./sentinel1/data:/data
  57.     ports:
  58.       - "127.0.0.1:40004:26379"
  59.     command: bash -c "chown redis:redis /docker/config/sentinel.conf && redis-server /docker/config/sentinel.conf --sentinel"
  61.   redis-sentinel2:
  62.     container_name: redis-sentinel2
  63.     image: redis
  64.     hostname: redis-sentinel2
  65.     networks:
  66.       - redis-replica-net
  67.     volumes:
  68.       - ./config/sentinel.conf:/docker/config/sentinel.conf
  69.       - ./sentinel2/data:/data
  70.     ports:
  71.       - "127.0.0.1:40005:26379"
  72.     command: bash -c "chown redis:redis /docker/config/sentinel.conf && redis-server /docker/config/sentinel.conf --sentinel"
  74.   redis-sentinel3:
  75.     container_name: redis-sentinel3
  76.     image: redis
  77.     hostname: redis-sentinel3
  78.     networks:
  79.       - redis-replica-net
  80.     volumes:
  81.       - ./config/sentinel.conf:/docker/config/sentinel.conf
  82.       - ./sentinel3/data:/data
  83.     ports:
  84.       - "127.0.0.1:40006:26379"
  85.     command: bash -c "chown redis:redis /docker/config/sentinel.conf && redis-server /docker/config/sentinel.conf --sentinel"
  87. networks:
  88.   redis-replica-net:
  89.     driver: bridge

代码 7：Sentinel Cluster