Commit Graph

7 Commits

Author SHA1 Message Date
Daniel J Walsh 1cb44dc5a1 If we tell system to never pull we should not pull
Fixes: https://github.com/containers/buildah/issues/3596

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2021-11-30 15:00:17 -05:00
Valentin Rothberg a5f253cddf libimage: enforce "latest" tag when looking up images
Make sure to enforce the "latest" tag when looking up images in the
local storage.  Also make sure that digested short-names are subject
to the extended digest lookups.

Context: containers/podman/issues/11964
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-11-22 15:19:38 +01:00
Valentin Rothberg 369aaa4178 libimage: pull: normalize docker-daemon
Normalize images pulled from the docker-daemon transport to docker.io
and not to localhost.  That preserves previous behavior of Podman.

Also fix a parsing bug in the pull code that was revealed while testing
the changes; parsing errors should be returned if there is a matching
transport without falling through to pulling the input string as an
image from a registry.

Context: containers/podman/issues/10998
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-07-21 13:48:58 +02:00
Valentin Rothberg 0d5e8e5bac libimage: LookupImage: remove IgnorePlatform option
When writing LookupImage, I thought that it's a good idea to always
attempt to match an image against the local (or requested) platform.
The use case I had in mind is multi-arch support:

`$ podman run image` should only match `image` if it matches the local
platform.  We may have previously pulled `image` for another
architecture.

The core criteria for these checks is that images set their platform
(arch/os/variant) correctly.  As it turned out that is not the case.
We recently performed a number of fixes to better support multi-arch
images and this change should put the last nail in the coffin.

Hence, entirely remove the `IgnorePlatform` option and only perform
platform matches if the arch, os or variant is specified explicitly via
the LookupImageOptions or the runtime's system context (as Buildah likes
to do it).

Note that this is a breaking change, so I need to update Buildah and
Podman.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-07-02 14:14:56 +02:00
Valentin Rothberg eb9abbf94a libimage: lookup images by custom platform
Allow for looking up images via customizable arch, os and variant.
This prevents `podman run --arch=xxx` from redundantly pulling down the
image if needed.

Context: containers/podman/issues/10648
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-06-11 16:27:52 +02:00
Valentin Rothberg a56cf8556e support tag@digest notation
For the sake of Docker compatibility, support the tag@digest notation.
In that case, the tag is stripped off the reference and the digest is
the sole source of truth.

Add a number of tests to make sure we're behaving as expected.

Context: containers/podman/issues/6721
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-05-26 16:39:03 +02:00
Valentin Rothberg 3b721f41df libimage: add unit tests
This adds tests pulling and a framwork that can be used to add more
tests in the future.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-05-06 15:41:33 +02:00