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Fallback via if: failure() without failing the job #25818

Answered by ethomson
bfloch asked this question in Actions
Fallback via if: failure() without failing the job #25818
@bfloch bfloch
Nov 1, 2019 · 1 comment
Answered by ethomson Return to top
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bfloch
Nov 1, 2019

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Answered by ethomson Nov 2, 2019

A failing step will cause the workflow to fail.  Instead of allowing the step to fail and then testing for it, you can set a variable when the docker pull fails, allow that step to succeed and then test for that variable.

For example:

- name: Pull docker image if available
        run: |
          docker pull A:TAG || echo "::set-env name=NEEDS_CONTAINER::true"
      - name: ... else build and push Docker image
        if: env.NEEDS_CONTAINER == 'true'
        run: |
          docker build --tag A:B .
          docker push A:B
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ethomson
Nov 2, 2019

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