Maybe I'm missing something here but doesn't logrotate have the 'postrotate ... endscript' block for its configuration files where you can run any command you desire?
Leroy Tennison
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From: CentOS <centos-bounces@xxxxxxxxxx> on behalf of Alice Wonder <alice@xxxxxxxxxxxxxx>
Sent: Wednesday, March 13, 2019 5:13 PM
To: centos@xxxxxxxxxx
Subject: [EXTERNAL] read permission on rotated logs
When logs (e.g. /var/log/maillog) are rotated (e.g. to
/var/log/maillog-YYYYMDD) is there a way via systemd or whatever to
assign read permission to a specific group?
Right now, for example -
ls -l maillog*
-rw------- 1 root root 3105240 Mar 13 22:04 maillog
-rw------- 1 root root 1079031 Feb 24 04:39 maillog-20190224
-rw------- 1 root root 7237640 Mar 1 12:59 maillog-20190228
-rw------- 1 root root 1297508 Mar 3 04:21 maillog-20190303
-rw------- 1 root root 1319371 Mar 10 08:17 maillog-20190310
What I would like -
ls -l maillog*
-rw------- 1 root root 3105240 Mar 13 22:04 maillog
-rw-r----- 1 root somegroup 1079031 Feb 24 04:39 maillog-20190224
-rw-r----- 1 root somegroup 7237640 Mar 1 12:59 maillog-20190228
-rw-r----- 1 root somegroup 1297508 Mar 3 04:21 maillog-20190303
-rw-r----- 1 root somegroup 1319371 Mar 10 08:17 maillog-20190310
That way a user in somegroup could run a script that analyzes the
rotated logs w/o needing root privileges.
Obviously I could put a script in /etc/cron.hourly that looks for
rotated log files and changes ownership / permission, but I am wondering
if there is a "proper" way to configure it via systemd or another utility.
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