414642efdb
Move the options for the podman build doc to a common md that can be used by both podman build and podman farm build. Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
816 B
####> This option file is used in: ####> podman build, farm build ####> If file is edited, make sure the changes ####> are applicable to all of those.
--timestamp=seconds
Set the create timestamp to seconds since epoch to allow for deterministic builds (defaults to current time). By default, the created timestamp is changed and written into the image manifest with every commit, causing the image's sha256 hash to be different even if the sources are exactly the same otherwise. When --timestamp is set, the created timestamp is always set to the time specified and therefore not changed, allowing the image's sha256 hash to remain the same. All files committed to the layers of the image is created with the timestamp.
If the only instruction in a Containerfile is FROM, this flag has no effect.