[clamav-users] Update policy for clamd at .service

[Herbert]

RESOLVED with help of 
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/sect-Managing_Services_with_systemd-Unit_Files#brid-Managing_Services_with_systemd-Extending_Unit_Config

I simply had to (removed former approach first):

1) cp /usr/lib/systemd/clam at .service  /etc/systemd/system/
2) made my changes in copied file
3) perfomed systemctl daemon-reload
4) Checked changes with systemd-delta:
[.. snippet ..]
[OVERRIDDEN] /etc/systemd/system/clamd at .service → 
/usr/lib/systemd/system/clamd at .service

--- /usr/lib/systemd/system/clamd at .service      2019-08-23 
17:07:29.000000000 +0200
+++ /etc/systemd/system/clamd at .service  2019-08-26 14:17:31.144758369 +0200
@@ -1,5 +1,5 @@
  [Unit]
-Description = clamd scanner (%i) daemon
+Description = Customized clamd scanner (%i) daemon
  Documentation=man:clamd(8) man:clamd.conf(5) 
https://www.clamav.net/documents/
  # Check for database existence
  # ConditionPathExistsGlob=@DBDIR@/main.{c[vl]d,inc}
@@ -9,4 +9,5 @@
  [Service]
  Type = forking
  ExecStart = /usr/sbin/clamd -c /etc/clamd.d/%i.conf
-Restart = on-failure
+#Restart = on-failure
+TimeoutSec = 600

Thanks to everyone who helped. Great community indeed!



On 26.08.2019 11:27, Fajar A. Nugraha via clamav-users wrote:
> On Mon, Aug 26, 2019 at 4:18 PM Herbert via clamav-users 
> <clamav-users at lists.clamav.net <mailto:clamav-users at lists.clamav.net>> 
> wrote:
>
>     Hi all,
>
>     System Fedora 5.2.9-200.fc30.x86_64
>     ClamAv 0.101.4
>
>
>     I wonder why a DNF update changes my customized
>     /usr/lib/systemd/clam@,service file.
>
>
> ... because you shouldn't have modified that file?
> https://docs.fedoraproject.org/en-US/quick-docs/understanding-and-administering-systemd/#modifying-existing-systemd-services
>
>     Background:
>     I had to add/change the following configurations in above
>     mentioned file
>     to overcome
>     a timeout issue.
>
>     TimeOutSec = 600
>     #Restart = on-failure        # to avoid restarting on timeout failure
>
>
> If it's an addition, you could probably use systemd drop-in 
> configuration file instead, e.g.
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/sect-Managing_Services_with_systemd-Unit_Files#brid-Managing_Services_with_systemd-Extending_Unit_Config
>
>     IMHO an update should not change the service files, but instead
>     install
>     a new version of this file(s)
>     with an appropriate extension. In addition DNF update should inform
>     about this with a warning.
>
>
> Are you sure you're not confusing /usr/lib/systemd with files under 
> /etc ? AFAIK what you wrote is correct for files in /etc.
>
> -- 
> Fajar
>
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