exited with code 0

[mklueh]

I´m trying to get my application running, but it terminates immediately and I cannot find a reason for that.

myapplication | => Starting app on port 3000...
myapplication exited with code 0

docker logs just shows "exited with code 0"

How can I see what is going on within the container?

When go in the containers bash and start the application manually, it tells me it cannot reach the database. However, when I launch another docker container I can reach the database without any problems.

version: "3"
services:
  app:
    image: application:v0.0.3
    container_name: myapplication
    build:
        context: "."
    ports:
      - "80:3000"
    volumes:
      - "/application:/var/lib/application"
    environment:
      - MONGO_URL=mongodb://database:27017/meteor
      - DATA_DIRECTORY=/var/lib/application
      - ROOT_URL=http://localhost
    command: chmod a+rwx -R /var/lib/application

  database:
      image: mongo:3.0
      volumes:
        - "/application/db:/data/db:rw"
      command: mongod --smallfiles --quiet --logpath=/dev/null

networks:
  default:
    external:
      name: service-tier

[jshimko]

Looks like you are overwriting the command that starts the app by using:
command: chmod a+rwx -R /var/lib/application

https://docs.docker.com/engine/reference/run/#cmd-default-command-or-options

[jshimko]

To be clear, that means your container is starting up and running chmod a+rwx -R /var/lib/application instead of starting the app with node main.js like it should be. So this isn't a problem with the image. It's your usage of it. It's because you're overriding the command that starts the app to do a permissions change and then the app never gets started. If you want to do some custom steps on the filesystem inside the container, you should either add some steps to your Dockerfile or maybe even fork the project and create your own custom image.

[mklueh]

Thanks, it worked;) I put that line in my docker-compose because I had no writing permissions somehow, but that seems to be gone for what reason ever