mirror of https://github.com/containers/podman.git
23 lines
818 B
Docker
23 lines
818 B
Docker
FROM alpine
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RUN mkdir -p /vol/subvol/subsubvol
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RUN dd if=/dev/zero bs=512 count=1 of=/vol/subvol/subsubvol/subsubvolfile
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VOLUME /vol/subvol
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# At this point, the contents below /vol/subvol should be frozen.
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RUN dd if=/dev/zero bs=512 count=1 of=/vol/subvol/subvolfile
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# In particular, /vol/subvol/subvolfile should be wiped out.
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RUN dd if=/dev/zero bs=512 count=1 of=/vol/volfile
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# However, /vol/volfile should exist.
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VOLUME /vol
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# And this should be redundant.
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VOLUME /vol/subvol
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# And now we've frozen /vol.
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RUN dd if=/dev/zero bs=512 count=1 of=/vol/anothervolfile
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# Which means that in the image we're about to commit, /vol/anothervolfile
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# shouldn't exist, either.
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# ADD files which should persist.
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ADD Dockerfile /vol/Dockerfile
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RUN stat /vol/Dockerfile
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ADD Dockerfile /vol/Dockerfile2
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RUN stat /vol/Dockerfile2
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