system test image: bump to 20220615

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 (#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 (#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 <santiago@redhat.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/test/system/070-build.bats b/test/system/070-build.bats
index b7e0ab447..ac41dd84d 100644
--- a/test/system/070-build.bats
+++ b/test/system/070-build.bats
@@ -496,7 +496,12 @@ Labels.$label_name | $label_value
        "image tree: third line"
     is "${lines[3]}" "Image Layers" \
        "image tree: fourth line"
-    is "${lines[4]}" ".* ID: [0-9a-f]\{12\} Size: .* Top Layer of: \[$IMAGE]" \
+    # FIXME: if #14536 is ever fixed, rebuild testimage & s/5/4/ below.
+    # Summary: this should be ${lines[4]}, not [5], and prior to 2022-06-15
+    # it was. Unfortunately, a nightmarish bug interaction makes it impossible
+    # for us to use --squash-all on our testimage. Unless/until that bug is
+    # fixed, we have an extra layer that all we can do is ignore.
+    is "${lines[5]}" ".* ID: [0-9a-f]\{12\} Size: .* Top Layer of: \[$IMAGE]" \
        "image tree: first layer line"
     is "${lines[-1]}"  ".* ID: [0-9a-f]\{12\} Size: .* Top Layer of: \[localhost/build_test:latest]" \
        "image tree: last layer line"