[Bug 1757433] Re: [SRU] mistral-event-engine conflicts mistral-event

[Corey Bryant]

I've verified this successfully on artful-proposed:

root at a1:~# apt policy mistral-engine mistral-event-engine
mistral-engine:
  Installed: 5.2.2-0ubuntu1
  Candidate: 5.2.2-0ubuntu1
  Version table:
 *** 5.2.2-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu artful-proposed/universe amd64 Packages
        100 /var/lib/dpkg/status
     5.0.0-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu artful/universe amd64 Packages
mistral-event-engine:
  Installed: 5.2.2-0ubuntu1
  Candidate: 5.2.2-0ubuntu1
  Version table:
 *** 5.2.2-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu artful-proposed/universe amd64 Packages
        100 /var/lib/dpkg/status
     5.0.0-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu artful/universe amd64 Packages
root at a1:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 17.10
Release:        17.10
Codename:       artful

** Tags removed: verification-needed-artful
** Tags added: verification-done-artful

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https://bugs.launchpad.net/bugs/1757433

Title:
  [SRU] mistral-event-engine conflicts mistral-event

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive pike series:
  Fix Committed
Status in Ubuntu Cloud Archive queens series:
  Fix Released
Status in mistral package in Ubuntu:
  Fix Released
Status in mistral source package in Artful:
  Fix Committed
Status in mistral source package in Bionic:
  Fix Released

Bug description:
  [Impact]

  This affects artful/pike and above. mistral-event-engine didn't exist
  in ocata.

  On Cloud Archive repos, packages mistral-event-engine and mistral-
  engine conflict because mistral-event-engine mistakenly provides
  mistral-engine:

  Steps to reproduce:
  # add-apt-repository cloud-archive:pike
  [...]
  # apt install mistral-event-engine mistral-engne
  [...]
  Setting up mistral-engine (5.0.0-0ubuntu1~cloud0) ...
  Setting up mistral-event-engine (5.0.0-0ubuntu1~cloud0) ...
  insserv: script mistral-event-engine: service mistral-engine already provided!
  insserv: exiting now!
  update-rc.d: error: insserv rejected the script header
  dpkg: error processing package mistral-event-engine (--configure):
   subprocess installed post-installation script returned error exit status 1
  Processing triggers for libc-bin (2.23-0ubuntu10) ...
  Processing triggers for systemd (229-4ubuntu21.1) ...
  Processing triggers for ureadahead (0.100.0-19) ...
  Errors were encountered while processing:
   mistral-event-engine
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  I only tested on pike version.
  The problem comes from the debian/mistral-event-engine.init.in file in package source.

  [Test Case]
  apt install mistral-engine mistral-event-engine

  [Regression Potential]
  Low. The fix updates a typo in the template used to generate init scripts.

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