Exit Code 0 in CI: What It Means and How to Fix It
Exit code 0 means the command succeeded - every other code is a failure.
Zero is the universal "success" exit status. A step that returns 0 is treated as passing.
What it means
The process completed without error. CI marks the step green.
Common causes
- The command did exactly what it should.
- A script
exit 0-ed early (sometimes hiding a real failure).
How to fix it
If a step "passes" but did nothing, check for an early exit 0, || true, or a set +e that swallowed an error.
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