[Bug 1687129] Re: Needs to allow updates from the ESM archive

[Steve Langasek]

Output now that the publication change is live on esm.u.c:

$ sudo unattended-upgrades --debug --dry-run
Initial blacklisted packages: 
Starting unattended upgrades script
Allowed origins are: ['o=Ubuntu,a=precise-security', 'o=UbuntuESM,a=precise']
Checking: unattended-upgrades (["<Origin component:'main' archive:'precise' origin:'UbuntuESM' label:'UbuntuESM' site:'esm.ubuntu.com' isTrusted:True>"])
pkgs that look like they should be upgraded: unattended-upgrades
Get:1 https://esm.ubuntu.com/ubuntu/ precise/main unattended-upgrades all 0.76ubuntu1.4 [24.8 kB]
Err https://esm.ubuntu.com/ubuntu/ precise/main unattended-upgrades all 0.76ubuntu1.4
                                                                               
Fetched 0 B in 0s (0 B/s)                                                      
<snip>
$

This looks like what we want.

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

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https://bugs.launchpad.net/bugs/1687129

Title:
  Needs to allow updates from the ESM archive

Status in unattended-upgrades package in Ubuntu:
  Confirmed
Status in unattended-upgrades source package in Precise:
  Fix Committed

Bug description:
  [SRU Justification]
  When the dust has settled on the ESM archive Release file format[1], unattended-upgrades needs to be tweaked to match.

  [1] https://github.com/CanonicalLtd/archive-auth-mirror/issues/43

  Since the ESM archive contains packages updated by the Ubuntu Security
  team, we should ensure the behavior of unattended-upgrades applies the
  same default policy to both.

  [Test case]
  1. run 'sudo apt-get install ubuntu-advantage-tools unattended-upgrades'
  2. run 'sudo ubuntu-advantage enable-esm <creds>' with your private creds to enable the ESM archive
  3. run 'sudo apt-get update'
  4. create a faked-up entry in /var/lib/apt/lists/esm.ubuntu.com_ubuntu_dists_precise_main_binary-amd64_Packages for the unattended-upgrades package with a higher version number
  5. run 'sudo unattended-upgrades --debug --dry-run' and verify that no unattended-upgrades package is installed.
  6. install unattended-upgrades from -proposed.
  7. again create a faked-up entry in /var/lib/apt/lists/esm.ubuntu.com_ubuntu_dists_precise_main_binary-amd64_Packages for the unattended-upgrades package with a higher version number
  8. run 'sudo unattended-upgrades --debug --dry-run' and verify that it offers to install a new unattended-upgrades package.

  [Regression potential]
  Worst-case scenario is a bug that prevents future security updates from being applied correctly.  This is not a concern for precise because there will be no further security updates /except/ those enabled by this SRU, but this SRU should also be included in all later stable releases.

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