[Bug 1717615] Please test proposed package

[Łukasz Zemczak]

Hello Graham, or anyone else affected,

Accepted python-heatclient into xenial-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/python-
heatclient/1.1.0-2ubuntu1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, details of your
testing will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

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https://bugs.launchpad.net/bugs/1717615

Title:
  encoded slashes being blocked by Apache

Status in OpenStack heat charm:
  Invalid
Status in Charm Helpers:
  Invalid
Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive mitaka series:
  Triaged
Status in Ubuntu Cloud Archive newton series:
  Triaged
Status in Ubuntu Cloud Archive ocata series:
  Triaged
Status in OpenStack Heat:
  Invalid
Status in python-heatclient package in Ubuntu:
  Fix Released
Status in python-heatclient source package in Xenial:
  Fix Committed
Status in python-heatclient source package in Zesty:
  Fix Committed

Bug description:
  [Impact]
  We came across a situation where we were unable to view resources in a stack inside Horizon. We traced it down to a communication problem with the Heat Apache frontend and Heat. After adjusting the log level for Apache, we came across the following error in the logs:

  [client 213.173.193.177:33920] AH00026: found %2f (encoded '/') in URI
  (decoded='/v1/c064a39d602d4f42bc49e09057c97683/stacks/heat_test_foo/b5c125a3-d452-49a1-
  a12e-03e098fbb38c/resources/foo_vm-01'), returning 404

  As a workaround, we currently added the following line to the
  /etc/apache/sites-enabled/openstack-https_frontend.conf on our Heat
  instance:

  AllowEncodedSlashes On

  It is worth noting we tried to use the NoDecode option as well and
  that is didn't resolve the problem.

  [Test Case]
  See details in impact section. For our testing we deploy OpenStack with the OpenStack charms to deploy Horizon, Heat, etc.

  
  [Regression Potential]
  Low. The patch being backported is from the upstream stable/pike branch. There were some minor adjustments required to apply the patch to earlier releases, but the patches are nearly identical.

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