system test image: bump to 20220615

[edsantiago]

Changes:

• use --timestamp option to produce 'created' stamps
  that can be reliably tested in the image-history test

• podman now supports manifest & multiarch run, so we
  no longer need buildah

• bump up base alpine & busybox images

This turned out to be WAY more complicated than it should've been,
because:

• alpine 3.14 fixed 'date -Iseconds' to include a colon in
  the TZ offset ("-07:00", was "-0700"). This is now consistent
  with GNU date's --iso-8601 format, yay, so we can eliminate
  a minor workaround.

• with --timestamp, all ADDed files are set to that timestamp,
  including the custom-reference-timestamp file that many tests
  rely on. So we need to split the build into two steps. But:

• ...with a two-step build I need to use --squash-all, not --squash, but:

• ... (deep sigh) --squash-all doesn't work with --timestamp (build with --squash-all + --timestamp clobbers timestamps in preexisting layers #14536)
  so we need to alter existing tests to deal with new image layers.

• And, long and sordid story relating to --rootfs. TL;DR that option
  only worked by a miracle relating to something special in one
  specific test image; it doesn't work with any other images. Fix
  seems to be complicated, so we're bypassing with a FIXME (Unhealthy pod(created via podman play kube) doesn't restart #14505).

And, unrelated:

• remove obsolete skip and workaround in run-basic test (dating
  back to varlink days)
• add a pause-image cleanup to avoid icky red warnings in logs

Fixes: #14456

Signed-off-by: Ed Santiago [email protected]

None

[vrothberg]

LGTM

[Luap99]

LGTM but it looks like the podman run --tz test needs to be updated as well.

[rhatdan]

/lgtm
/hold

[edsantiago]

LGTM but it looks like the podman run --tz test needs to be updated as well.

This (like everything else in this PR) was much more complicated than I had expected. TL;DR my two-stage build solved this, but that broke the image tree test. I fixed image tree by adding --squash-all, but didn't rerun the entire test suite and didn't notice that the TZ test had broken (because --squash-all + --timestamp apparently clobbers timestamps that it shouldn't; I will look into this later). I've rebuilt the testimage with one --squash-all and one --squash, and TZ and tree tests now pass on my system, and we will now see what other surprises lurk.

That may have been the longest TL;DR I've ever written. Sorry.

[edsantiago]

Okay, looks like I really need to look into this squash-all situation.

[edsantiago]

Filed #14536

[edsantiago]

@containers/podman-maintainers this is ready. As a reminder, it was supposed to be a five-minute fix for test failures seen by the multiarch team.

[vrothberg]

/lgtm
/hold

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[vrothberg]

/hold cancel