[Bug 1704979] Update Released

[Brian Murray]

The verification of the Stable Release Update for ubuntu-image has
completed successfully and the package has now been released to
-updates.  Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1704979

Title:
  The snap.sh autopkgtest suite failes on non amd64/i386 arches

Status in Ubuntu Image:
  Fix Committed
Status in ubuntu-image package in Ubuntu:
  Fix Released
Status in ubuntu-image source package in Xenial:
  Fix Released
Status in ubuntu-image source package in Yakkety:
  Invalid
Status in ubuntu-image source package in Zesty:
  Fix Released

Bug description:
  [Impact]

  With the current ubuntu-image 1.1, it is impossible for the package to
  migrate to the release pocket as the autopkgtests for armhf, ppc64el
  and arm64 will fail (the snap.sh test). This test does not make sense
  to be run as part of .deb migration as it's testing snap buildability
  - it's a bad idea to mix those two worlds.

  [Test Case]

  Make sure that all the autopkgtests pass for all architectures (with
  the snap.sh test skipped).

  [Regression Potential]

  None. This is only a test change. Skipping the test on package
  migration introduces no real possibility of regressions. Snap
  buildability is checked during the github source CI for each pull-
  request. Besides, snap buildability is a feature of the source that is
  not used by the .deb parts and is completely irrelevant to users.

  [Original Description]

  We have an autopkgtest called snap.sh that checks if we're able to
  properly build an ubuntu-image snap from the current source and that
  the resulting tool is usable. This test started failing with ubuntu-
  image 1.1 for armhf, ppc64el and s390x.

  By checking the test logs, this test was never really working for
  archs other than amd64 and i386. The snap never really got properly
  built and installed, and the test only passed because, for some
  reason, ubuntu-image was available as a deb (you can see it in the old
  logs by examining the ubuntu-image --version output, stating a non-
  snap version number). Starting with changes from 1.1, we now have some
  tests that make sure the deb is not installed.

  In theory building the ubuntu-image snap should be possible on all arches. In practice, on all the fancy archs basically the core snap is *always* failing to install with:
  error: cannot communicate with server: Post http://localhost/v2/snaps/core: dial unix /run/snapd.socket: connect: connection refused

  This doesn't seem to be a transient error. This causes ubuntu-image to
  not migrate.

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