github.com/containers/podman/v2@v2.2.2-0.20210501105131-c1e07d070c4c/test/build/volume-perms/Dockerfile (about)

     1  FROM alpine
     2  VOLUME /vol/subvol
     3  # At this point, the directory should exist, with default permissions 0755, the
     4  # contents below /vol/subvol should be frozen, and we shouldn't get an error
     5  # from trying to write to it because we it was created automatically.
     6  RUN dd if=/dev/zero bs=512 count=1 of=/vol/subvol/subvolfile