Phoenix + Docker + VScode environment for debbuging

Phoenix Forum Questions / Help
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1

Hello everybody.

I have set up my phoenix application using docker. My IDE is VScode. The problem is I can’t find a way to debug the application although it is running correctly inside the docker container. If I remove docker I am able to the bug with vscode using the following settings in launch.json file

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "mix_task",
            "name": "mix (Default task)",
            "request": "launch",
            "projectDir": "${workspaceRoot}"
        },
        {
            "type": "mix_task",
            "name": "mix phx.server",
            "request": "launch",
            "projectDir": "${workspaceRoot}",
            "task": "phx.server"
        }
    ]
}

As I understand then ElixirLS extension for the VScode is making it possible for me. But I would really like to run the application inside docker container(as I am doing with other projects) and still be able to use the debugging feature. How do you debug your phoenix application running in docker container?

2

I finally decided to drop the docker and use elixir installed on my system. Found a package called asdf which lets me easily switch between elixir versions. I am able to use the debugger feature on vscode and still use different elixir versions based on my project needs.

3

In addition to asdf itself, you can also use direnv to set environment variables as soon as you cd into a directory.