How to debug Docker containers! (Python + VSCode)
I recently encountered an issue where a python unit test was passing inside of a container, but failing locally.
In this video I show a few different tips/techniques for debugging code running within a docker container:
1) Modify the container entrypoint and exec into the container
2) Copy files to and from the container for inspection/comparison
3) Set up a remote debugger inside the container and attach to it from the host
I hope you find these helpful as you debug your own containerized applications.
Cheers!
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Timestamps:
0:00 - Intro
0:57 - Sample test case overview
1:12 - Sample Dockerfile
2:28 - Tip #1 (modify entrypoint)
4:00 - Tip #2 (docker cp)
5:39 - Tip #3 (remote debugger)
7:16 - Configuring debugger in VSCode
8:54 - Closing thoughts
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