Restart telegraf service if it is already running and upgraded via RPM

[druchoo]

Feature Request

If RPM package is upgraded and the telegraf service is running have postscript restart service.

Proposal:

Current behavior:

Service is not restarted if already running and upgraded via RPM

Desired behavior:

Restart service if it is already running and upgraded via RPM

Use case: [Why is this important (helps with prioritizing requests)]

According to https://fedoraproject.org/wiki/Packaging:Scriptlets#Systemd

On upgrade, a package may only restart a service if it is running; it may not start it if it is off.

I think restarts were removed from #3015?

This behavior is probably a matter of preference but the reasoning is if you're upgrading telegraf it is intentional and you want to use the new version. Currently a manual restart is needed if the service is already running and an upgrade is performed.

[danielnelson]

Which distro and distro version are you using?

[druchoo]

CentOS Linux release 7.2.1511 (Core) and telegraf 1.4.x

[sparr]

There is a restart with the .deb package upgrade, so this is at best an inconsistency between different packagings of the same version.

[danielnelson]

I'm okay with the rpm and deb packages behaving differently, but they should follow guidelines from debian and redhat. One example is that in debian a service is generally started on install, while on redhat you need to manually enable it.

[nerijus]

I'm okay with the rpm and deb packages behaving differently, but they should follow guidelines from debian and redhat. One example is that in debian a service is generally started on install, while on redhat you need to manually enable it.

Yes, but we are talking about restarting service when it is already running before update. It should restart in such case, all other services do that and Fedora guidelines suggests it.