docker-compose.yaml

version: '3.5'

services:
  postgres:
    image: postgres:14-alpine
    restart: unless-stopped
    container_name: postgres
    ports:
      - 5432:5432
    environment:
      POSTGRES_PASSWORD: ${PG_PASSWORD}
      POSTGRES_USER: ${PG_USER}
      POSTGRES_DB: ${PG_DB}
    volumes:
      - "${POSTGRES_DATA}:/var/lib/postgresql/data"

  emqx1:
    image: emqx:5.1.6
    container_name: emqx1
    environment:
      - "EMQX_NODE_NAME=emqx@node1.emqx.io"
      - "EMQX_CLUSTER__DISCOVERY_STRATEGY=static"
      - "EMQX_CLUSTER__STATIC__SEEDS=[emqx@node1.emqx.io,emqx@node2.emqx.io]"
    healthcheck:
      test: ["CMD", "/opt/emqx/bin/emqx", "ctl", "status"]
      interval: 5s
      timeout: 25s
      retries: 5
    networks:
      emqx-bridge:
        aliases:
          - node1.emqx.io
    ports:
      - 1883:1883
      - 8083:8083
      - 8084:8084
      - 8883:8883
      - 18083:18083
    volumes:
      - "${MQTT1_DATA}/emqx1_data:/opt/emqx/data"

  emqx2:
    image: emqx:5.1.6
    container_name: emqx2
    environment:
      - "EMQX_NODE_NAME=emqx@node2.emqx.io"
      - "EMQX_CLUSTER__DISCOVERY_STRATEGY=static"
      - "EMQX_CLUSTER__STATIC__SEEDS=[emqx@node1.emqx.io,emqx@node2.emqx.io]"
    healthcheck:
      test: ["CMD", "/opt/emqx/bin/emqx", "ctl", "status"]
      interval: 5s
      timeout: 25s
      retries: 5
    networks:
      emqx-bridge:
        aliases:
          - node2.emqx.io
    volumes:
      - "${MQTT2_DATA}/emqx1_data:/opt/emqx/data"

networks:
  emqx-bridge:
    driver: bridge