how do i get dockerfile to return a specific exit code from my program

Question

how do i get dockerfile to return a specific exit code from my program? I have a python program and would like to return a code of 2 under certain conditions.

Simply using return 2 does not work.

Any suggestions?

See [mcve] for how to provide a more complete question. – BMitch May 17 '21 at 18:53 — BMitch, May 17 '21 at 18:53

score 0 · Answer 1 · answered May 17 '21 at 17:47

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If you want to receive exit code from your program that runs in container you could use docker inspect command:

docker inspect --format='{{.State.ExitCode}}' $INSTANCE_ID

answered May 17 '21 at 17:47

peter

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Thanks Peter, I will give that a try if replacing return 2 with sys.exit(2) does not work. – Razor Spirit May 17 '21 at 18:53

score 0 · Answer 2 · answered May 17 '21 at 18:52

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Return(2) vs sys.exit(2) is the issue.

The issue was uncovered in this post.

Exit codes in Python

answered May 17 '21 at 18:52

Razor Spirit

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how do i get dockerfile to return a specific exit code from my program

2 Answers2