Docker-compose issues while exposing frontend through ngrok

[rimelek (Ákos Takács)]

@sirserje

Inside the frontend, I’m doing:

Frontend like client side javascript? The internal DNS server will not resolve that for your web browser. Please, read my post here as well, if I was right:

net::ERR_NAME_NOT_RESOLVED when calling dockerized backend and frontend from browser

Thank you for the explanation. So you are basically using Docker to avoid having to pull the code on the server. This is not what Docker is for. You still have to configure your application for the environment. With Docker, you will push the Docker image to a registry and pull the image on the server from the registry, but the image has to support parameters so you can use different parameters in development mode and in production. You would need a CI/CD process (Continues Intergation / Conti…

Also

@sirserje

    environment:
      PORT=3001

It does not seem to be right either. You can either define a list of env variables using the equals sign or a mapping of key value pairs. What you defined is a string, but I’m surprised it allowed to start the project. Maybe compose supports a string syntax as well? Never tried and never read it in documentation. So valid ways:

    environment:
      - PORT=3001

or

    environment:
      PORT: 3001