Client.api.build fails if Dockerfiles contains COPY --chmod=
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Description
When I'm using this Dockerfile, the Build exits without an Error but does not execute everything after the COPY statement. Im using the client.api.build function. When I build the Image with the docker cli everything works fine.
FROM centos
USER root
COPY --chown=users:test --chmod=0755 ./test /opt/test
USER test
This Dockerfile works fine:
FROM centos
USER root
COPY --chown=users:test ./test /opt/test
RUN chmod -R +x /opt/test
USER test
Expected behavior:
Docker SDK should behave like the docker cli. It should be possible to build the first Dockerfile.
The Testproject is here
pythonProject.zip
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First steps
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Research direction
Start by reproducing the issue with client.api.build and the Dockerfile containing COPY --chown=users:test --chmod=0755, then compare its behavior with the Docker CLI. Trace how the SDK handles that COPY instruction; done means the build completes and executes the instructions after COPY, matching the CLI behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- docker, python
- Domain
- devops
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100