version: "2"

networks:
  # reachable from outside
  default:
    driver: bridge
  # interconnects projects
  kiwi_hub:
    external:
      name: ${KIWI_HUB_NAME}

services:
  greeter:
    # simple loop producing (rather boring) logs
    image: alpine:latest
    command: sh -c 'LOOP=1; while :; do echo Hello World "$$LOOP"; LOOP=$$(($$LOOP + 1)); sleep 10; done'

  web:
    # basic webserver listening on localhost:8080
    build: web
    restart: unless-stopped
    ports:
      - "8080:80"

  db:
    # internal mariadb (mysql) instance with persistent storage
    image: mariadb:10
    restart: unless-stopped
    networks:
      - kiwi_hub
    environment:
      MYSQL_ROOT_PASSWORD: changeme
    volumes:
      - "${TARGETDIR}/db:/var/lib/mysql"

  adminer:
    # admin interface for databases
    image: adminer:standalone
    restart: unless-stopped
    networks:
      - default
      - kiwi_hub
    depends_on:
      - db
    ports:
      - "8081:8080"

  another-web:
    # Another webserver just to show off the ${CONFDIR} variable
    image: nginx:stable-alpine
    restart: unless-stopped
    ports:
      - "8082:80"
    volumes:
      - "${CONFDIR}/html/index.html:/usr/share/nginx/html/index.html:ro"