docker-compose.yml

# source https://medium.com/@isurunuwanthilaka/get-into-mqtt-in-2-minutes-python-docker-5d4e8b55cf1c
version: "3"

services:
  mqtt:
    image: toke/mosquitto
    networks:
      - web
    container_name: mqtt
    expose:
      - 1883
    ports:
      - 1883:1883
    restart: unless-stopped

  sensor:
    image: image/sensor
    networks:
      - web
    links:
      - ingestion

# source https://medium.com/@nirgn/load-balancing-applications-with-haproxy-and-docker-d719b7c5b231
  proxy:
    image: dockercloud/haproxy
    environment:
      - BALANCE=leastconn
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    ports:
      - 80:80
    networks:
      - web
    links:
      - ingestion

  ingestion:
    image: image/ingestion
    networks:
      - web
    ports:
      - 5000
    links:
      - mqtt
    environment:
     - SERVICE_PORTS=5000

  storage:
    image: image/storage
    networks:
      - web
    links:
      - mqtt
    environment:
      - POSTGRES_USER=$POSTGRES_USER
      - POSTGRES_PASSWORD=$POSTGRES_PASSWORD
      - POSTGRES_DB=$POSTGRES_DB

  postgres:
    restart: always
    image: postgres:10
    volumes:
       - db-data:/var/lib/postgresql
    environment:
      - POSTGRES_USER=$POSTGRES_USER
      - POSTGRES_PASSWORD=$POSTGRES_PASSWORD
      - POSTGRES_DB=$POSTGRES_DB
    ports:
      - "5432:5432"
    networks:
      - web

  grafana:
    image: custom/grafana
    ports: 
      - 3000:3000
    networks:
      - web
    environment:
      - POSTGRES_USER=$POSTGRES_USER
      - POSTGRES_PASSWORD=$POSTGRES_PASSWORD
      - POSTGRES_DB=$POSTGRES_DB

networks:
  web:

volumes:
  db-data: