[Bug 1906364] Re: unattended-upgrade still restarts blacklisted daemons

[Balint Reczey]

Containerd unsuccessfully restarting docker is tracked at LP: #1870514.

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https://bugs.launchpad.net/bugs/1906364

Title:
  unattended-upgrade still restarts blacklisted daemons

Status in containerd package in Ubuntu:
  New
Status in docker.io package in Ubuntu:
  New
Status in unattended-upgrades package in Ubuntu:
  Won't Fix

Bug description:
  Hello,

  Today plenty of our systems running ubuntu 20.04 were restarting the
  docker daemon, even if i blacklisted the docker package. Since docker
  has an dependency on containerd thats the reason why it was restarted.
  IMO the blacklist should also check the full tree of dependencies...
  This should NOT happen!

  From the log you find:

  2020-12-01 06:40:13,881 INFO Starting unattended upgrades script
  2020-12-01 06:40:13,882 INFO Allowed origins are: o=Ubuntu,a=focal, o=Ubuntu,a=focal-security, o=UbuntuESMApps,a=focal-apps-security, o=UbuntuESM,a=focal-infra-security
  2020-12-01 06:40:13,882 INFO Initial blacklist: docker docker.io
  2020-12-01 06:40:13,882 INFO Initial whitelist (not strict):
  2020-12-01 06:40:19,139 INFO Packages that will be upgraded: containerd qemu-block-extra qemu-kvm qemu-system-common qemu-system-data qemu-system-gui qemu-system-x86 qemu-utils
  2020-12-01 06:40:19,140 INFO Writing dpkg log to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log
  2020-12-01 06:40:46,996 INFO All upgrades installed
  2020-12-01 06:40:50,732 INFO Starting unattended upgrades script
  2020-12-01 06:40:50,732 INFO Allowed origins are: o=Ubuntu,a=focal, o=Ubuntu,a=focal-security, o=UbuntuESMApps,a=focal-apps-security, o=UbuntuESM,a=focal-infra-security
  2020-12-01 06:40:50,733 INFO Initial blacklist: docker docker.io
  2020-12-01 06:40:50,733 INFO Initial whitelist (not strict):

  Also this happened for us on plenty of our servers almost at the same
  (why the unattended updates are not spread over time?), which
  destroyed the second time an production environment.

  This is not how unattended-upgraded should be, sadly this package lost
  our trust and we disable it and schedule the 'unattended updates' now
  on our own.

  PS: Not to say that on some servers the docker daemon did not even
  restart..

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