How to use pipes(ioredirection) in Dockerfile RUN?

2018-06-08 18:33:42

Following line in Dockerfile doesn't work:

RUN git archive master | tar -x -C /path

Error message:

fatal: Not a valid object name
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors

How to solve this issue?

How about the following variation: git archive master | tar xf - -C /path git archive master | tar xf - -C /path ?

You can try a sh -c command

RUN sh -c 'git archive master | tar -x -C /path'

If not, you can include that command in a script, COPY the script and RUN it.

It looks like the issue is actually with your git repository (or the directory your RUN is executing in):

fatal: Not a valid object name

This error is coming from git and suggests that there's no branch named master .

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