docker-compose.yml

version: "3"
services: 
  my-redis-a:
    hostname: redis-master
    container_name: redis-master
    image: "bitnami/redis"
    environment:
      - REDIS_REPLICATION_MODE=master
      - ALLOW_EMPTY_PASSWORD=yes
    ports:
      - 5123:6379 
  my-redis-b:
    hostname: redis-replicas-1
    container_name: redis-replicas-1
    image: "bitnami/redis"
    environment:
      - REDIS_REPLICATION_MODE=slave
      - REDIS_MASTER_HOST=redis-master
      - ALLOW_EMPTY_PASSWORD=yes
    ports:
      - 5124:6379
    depends_on:
      - my-redis-a

  redis-sentinel-1:
    container_name: sentinel1
    image: 'bitnami/redis-sentinel:latest'
    environment:
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=3000
      - REDIS_MASTER_HOST=redis-master
      - REDIS_MASTER_PORT_NUMBER=6379
      - REDIS_MASTER_SET=mymaster
      - REDIS_SENTINEL_QUORUM=2
    ports:
      - 26379:26379
    depends_on:
      - my-redis-a
      - my-redis-b
  redis-sentinel-2:
    container_name: sentinel2
    image: 'bitnami/redis-sentinel:latest'
    environment:
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=3000
      - REDIS_MASTER_HOST=redis-master
      - REDIS_MASTER_PORT_NUMBER=6379
      - REDIS_MASTER_SET=mymaster
      - REDIS_SENTINEL_QUORUM=2
    ports:
      - 26380:26379
    depends_on:
      - my-redis-a
      - my-redis-b
  redis-sentinel-3:
    container_name: sentinel3
    image: 'bitnami/redis-sentinel:latest'
    environment:
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=3000
      - REDIS_MASTER_HOST=redis-master
      - REDIS_MASTER_PORT_NUMBER=6379
      - REDIS_MASTER_SET=mymaster
      - REDIS_SENTINEL_QUORUM=2
    ports:
      - 26381:26379
    depends_on:
      - my-redis-a
      - my-redis-b