Debbuging in Docker

Setup to make VSCode able to debug directly from docker

First step

On the docker-compose file, we have to set, on the python server cyberpython, the number of workers to be 1 (--workers) in the gunicorn command. We have to expose a port from the same image, like 9001:9001.

Step two

We have to add some code on the /src/server/wsgi.py file.

import debugpy

debugpy.listen(('0.0.0.0', 9001))
debugpy.wait_for_client()
print("connected")

Step three

We have to add an entry in the launch.json file like follows:

     {
 "name": "Remote Attach",
            "type": "python",
            "request": "attach",
            "connect": {
                "host": "0.0.0.0",
                "port": 9001
            },
            "pathMappings": [
                {
                    "localRoot": "${workspaceFolder}/src/server",
                    "remoteRoot": "."
                }
            ],
            "justMyCode": true
        },