docker-compose.yml

version: '3.2'

services:

  # Load balancing proxy
  # This is what the replicas will talk through
  proxy:
    build: ./haproxy
    depends_on:
      - primary1
      - primary2
    ports:
      - "6379:6379"
    environment:
      - PRIMARY_1_IP=${PRIMARY_1_IP}
      - PRIMARY_2_IP=${PRIMARY_2_IP}
    networks:
      public_net:
        ipv4_address: ${HA_PROXY_IP}

  # Primary nodes.
  # These are active-active
  primary1:
    image: eqalpha/keydb
    ports:
      - "6401:6379"
    volumes:
      - ./:/keydb
    command:
      - /keydb/config/primary1.conf
    networks:
      public_net:
        ipv4_address: ${PRIMARY_1_IP}

  primary2:
    image: eqalpha/keydb
    ports:
      - "6402:6379"
    volumes:
      - ./:/keydb
    command:
      - /keydb/config/primary2.conf
    networks:
      public_net:
        ipv4_address: ${PRIMARY_2_IP}

  # Read only replicas
  # These point at the primary ndoes via the proxy
  replica1:
    image: eqalpha/keydb
    ports:
      - "6501:6379"
    volumes:
      - ./:/keydb
    command:
      - /keydb/config/replica.conf
    networks:
      public_net:
        ipv4_address: ${REPLICA_1_IP}

  replica2:
    image: eqalpha/keydb
    ports:
      - "6502:6379"
    volumes:
      - ./:/keydb
    command:
      - /keydb/config/replica.conf
    networks:
      public_net:
        ipv4_address: ${REPLICA_2_IP}

  replica3:
    image: eqalpha/keydb
    ports:
      - "6503:6379"
    volumes:
      - ./:/keydb
    command:
      - /keydb/config/replica.conf
    networks:
      public_net:
        ipv4_address: ${REPLICA_3_IP}

networks:
  public_net:
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: ${NETWORK_SUBNET}