Allows users to specify a readonly rootfs with :O, in exchange podman will create a writable overlay.
bump builah to v1.22.1-0.20210823173221-da2b428c56ce
[NO TESTS NEEDED]
Signed-off-by: flouthoc <flouthoc.git@gmail.com>
New functionality -- mostly in the diffs we apply to
buildah's helpers.bash -- to enable running buildah-bud
tests under podman-remote. The gist of it is, we start
a 'podman system service' before each test, and clean
it up on test exit.
Design decision: the diff file for helpers.bash is no
longer trailing-whitespace-clean: that ended up producing
diffs that git wouldn't apply, because in some cases
the whitespace is actually important. In order to pass CI,
we need to exclude this file from some checks.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Update containers common to the latest HEAD. Some bug fixes in libimage
forced us to have a clearer separation between ordinary images and
manifest lists. Hence, when looking up manifest lists without recursing
into any of their instances, we need to use `LookupManifestList()`.
Also account for some other changes in c/common (e.g., the changed order
in the security labels).
Further vendor the latest HEAD from Buildah which is required to get the
bud tests to pass.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Migrate the Podman code base over to `common/libimage` which replaces
`libpod/image` and a lot of glue code entirely.
Note that I tried to leave bread crumbs for changed tests.
Miscellaneous changes:
* Some errors yield different messages which required to alter some
tests.
* I fixed some pre-existing issues in the code. Others were marked as
`//TODO`s to prevent the PR from exploding.
* The `NamesHistory` of an image is returned as is from the storage.
Previously, we did some filtering which I think is undesirable.
Instead we should return the data as stored in the storage.
* Touched handlers use the ABI interfaces where possible.
* Local image resolution: previously Podman would match "foo" on
"myfoo". This behaviour has been changed and Podman will now
only match on repository boundaries such that "foo" would match
"my/foo" but not "myfoo". I consider the old behaviour to be a
bug, at the very least an exotic corner case.
* Futhermore, "foo:none" does *not* resolve to a local image "foo"
without tag anymore. It's a hill I am (almost) willing to die on.
* `image prune` prints the IDs of pruned images. Previously, in some
cases, the names were printed instead. The API clearly states ID,
so we should stick to it.
* Compat endpoint image removal with _force_ deletes the entire not
only the specified tag.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Experience this week has shown that managing .diff files
is too difficult for humans, and too fragile. Opportunities
for errors abound. So, let's try to minimize the diffs.
We can't eliminate the diffs to helpers.bash: those are
true code changes that are absolutely required for running
tests using podman instead of buildah. We need to carry
those ourselves: they are not appropriate for the buildah
repo itself.
What we can do is simplify the patching of bud.bats. That
is fragile, because bud.bats changes often, and context-
sensitive git patch files can easily get confused.
Recognizing that the changes to bud.bats fall under two types:
- tests that are skipped
- tests in which podman error messages differ from buildah's
...we now have a new script, apply-podman-deltas, which
is (I hope) much user-friendlier. It understands two directives:
errmsg - alter the expected error message
skip - skip a test
Both operate based on a bats test name. The test name must
match exactly. These directives use 'sed' to update bud.bats.
If any directive fails, the script will keep going (so you
get as many errors as possible in a run), then exits failure.
Instructions (README.md) now explain the process for dealing
with all expected test failures.
(Sneak checkin: add '--filter=NAME' option to test runner,
allowing for targeted and much shorter test runs).
Signed-off-by: Ed Santiago <santiago@redhat.com>
Issue #9573 (podman build --pull-never is a NOP) is fixed.
Remove the 'skip' in the buildah-bud pull-never test.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Set of scripts to run buildah's bud.bats test using
podman build in podman CI.
podman build is not 100% compatible with buildah bud.
In particular:
* podman defaults to --layers=true; buildah to false
* podman defaults to --force-rm=true; buildah to false
* podman error exit status is 125; buildah is 2
* differences in error messages, command-line arguments
Some of the above can be dealt with programmatically,
by tweaking the buildah helpers.bash (BATS helpers).
Some need to be tweaked by patching bud.bats itself.
This PR includes a patch that will, I fear, need to
be periodically maintained over time.
There will likely be failures when vendoring in a
new buildah, possibly because new tests were added
for new features that don't exist in podman, possibly
(I hope unlikely) if existing tests are changed in
ways that make the patch file fail to apply. I've
tried to write good instructions and to write the run
script in such a way that it will offer helpful hints
on failure. My instructions and code will be imperfect;
I hope they will be good enough to merit continued use
of this test (possibly with improvements to the instructions
as we learn more about real-world failures).
Signed-off-by: Ed Santiago <santiago@redhat.com>
flouthoc
Ed Santiago
Daniel J Walsh
Valentin Rothberg