[Bug 1775170] Re: [SRU] Fixing empty create container dialog after upgrading horizon from newton to ocata

[Ubuntu Foundations Team Bug Bot]

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** Tags added: patch

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https://bugs.launchpad.net/bugs/1775170

Title:
  [SRU] Fixing empty create container dialog after upgrading horizon
  from newton to ocata

Status in Ubuntu Cloud Archive:
  New
Status in horizon package in Ubuntu:
  New

Bug description:
  [Impact]

  After upgrading openstack-dashboard from newton to ocata
  Create Container dialog show us empty dialog.

  I'm sure this is needed for ocata UCA
  but not sure pike or newer version.
  because upgrading 2 steps is not recommended.
  Please let me know if the patch for the other releases are also needed.
  e.g from newton to pike or from xenial to Z A B?

  [Test Case]

  1. deploy newton env with object store
  2. check if create container dialog show us proper contents ( yes )
  3. upgrade newton to coat
  4. check if create container dialog show us proper contents ( no )

  [Regression Potential]
  After this patch, every installing or upgrading try to delete specific directories and files that no need in ocata anymore. affected file are related to newton only but if ocata has changes in that directory, that file also can be deleted. but this case unlikely happens.

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