[Bug 1574144] Re: package openstack-dashboard-ubuntu-theme 2:9.0.0-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Corey Bryant]

The postinst scripts perform a reload of apache2 config files, and this
will fail as the bug describes if apache2 is not running.

I think the postinst scripts could be smarter and handle the situation
where apache2 is not already running.  apache2 reload should be
preferred vs apache2 restart to avoid interruption, but if apache2 isn't
already running we should attempt to start it.

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https://bugs.launchpad.net/bugs/1574144

Title:
  package openstack-dashboard-ubuntu-theme 2:9.0.0-0ubuntu2 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1

Status in horizon package in Ubuntu:
  Triaged

Bug description:
  ı hate this bug and ubuntu theme always causing problems

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: openstack-dashboard-ubuntu-theme 2:9.0.0-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  Date: Sun Apr 24 05:19:10 2016
  DuplicateSignature:
   Setting up openstack-dashboard-ubuntu-theme (2:9.0.0-0ubuntu2) ...
   Collecting and compressing static assets...
   apache2.service is not active, cannot reload.
   dpkg: error processing package openstack-dashboard-ubuntu-theme (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2016-04-23 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1
   apt  1.2.10ubuntu1
  SourcePackage: horizon
  Title: package openstack-dashboard-ubuntu-theme 2:9.0.0-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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