Cant find dockerhost

[jpkontreras]

Hello I want to connect to a postgres DB on my local machine through a container im using docker compose v3

docker-compose.yml

version: '3.5'

services:
  dockerhost:
    build:
      context: ../
      dockerfile: ./docker/files/host.dockerfile
    cap_add:
      - NET_ADMIN
      - NET_RAW
    restart: on-failure
    networks:
      - backend
  backend_app:
    container_name: agenda_api_app_dev
    build:
      context: ../
      dockerfile: ./docker/files/app.dockerfile
    volumes:
      - ../:/var/www/
    networks:
      - backend
    depends_on:
      - dockerhost
  backend_server:
    container_name: agenda_api_server_dev
    build:
      context: ..
      dockerfile: ./docker/files/server.dockerfile
    volumes:
      - ../public:/var/www/public
      - ../storage/logs/:/var/log/nginx
    ports:
      - ${APP_PORT}:80
    depends_on:
      - backend_app
    networks:
      - backend
networks:
  backend:
    driver: bridge

host.dockerfile

FROM qoomon/docker-host:latest

When executed shows dockerhost as unknown . What it could be ?

Im active if you want more info

[jpkontreras]

OS : mac OS 10.14.4 mojave

[qoomon]

my first guess would be that your application tries to connect before the docker-host container is started. depends_on will only ensure that the dependen container will be started but it does not ensure that the service is available.

[qoomon]

you may can try to start th.e dockhost service first with a seperate command e.g.

docker-compose up dockerhost and than docker-compose up to ramp-up the rest.

[jpkontreras]

I will try that. I'll let you know Thanks

[jpkontreras]

tried the solution but the result is the same Some questions

• how can i know the host address after build ?
• do i have to open ports ? in this case 5432 postgres

[qoomon]

the host address is always the service name itself in your case dockerhost