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Enable a Kolab Installation to Actually Function
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Feb 11 2016, 5:03 PM
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"Like" token, awarded by petersen."Like" token, awarded by vincent."Like" token, awarded by vanmeeuwen.


Currently, Enterprise Linux 7 deployments may run in to the following problem:

# systemctl enable clamd@amavisd.service
The unit files have no [Install] section. They are not meant to be enabled
using systemctl.
Possible reasons for having this kind of units are:
1) A unit may be statically enabled by being symlinked from another unit's
   .wants/ or .requires/ directory.
2) A unit's purpose may be to act as a helper for some other unit which has
   a requirement dependency on it.
3) A unit may be started when needed via activation (socket, path, timer,
   D-Bus, udev, scripted systemctl call, ...).

This is an issue with a package originating from EPEL, for which a solution is unclear and not available in the foreseeable future.

Rather, we can make PyKolab's setup-kolab read in /lib/systemd/system/clamd\@.service, see if there's an [Install] section, and otherwise write out a copy to /etc/systemd/system/clamd\@.service that has the necessary corrections, before issuing a systemctl enable clamd@amavisd.service.

Functionally, not starting ClamAV has two possible consequences:

  1. No mail passes through Amavis
  2. No virus scanning is applied

Implementation Design Considerations

  • A system may or may not use systemd.
  • A dependency under the kolab-mta sub-package is responsible for pulling in either clamav-server-systemd or clamav-server-sysvinit.

The eligibility for clamav-server-sysvinit to not start clamd@amavisd successfully has not been determined.


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vanmeeuwen awarded a token.
vanmeeuwen moved this task from Backlog to Inception on the Architecture & Design board.

A Nice to have, but probably not a mega priority..

Thank you @petersen and @vincent this makes it ready for Elaboration.

vanmeeuwen lowered the priority of this task from 60 to Normal.Mar 22 2019, 12:28 PM

Correcting the priority from 60/40 to Normal