zimbra-autorestart

Auto restart zimbra if something stops working, because some zimbra services likes to stop working randomly for absolutely no reason and restarting (some) services fixes it. This is a cure-all solution I came up with. Prevent consecutive restart if last restart didn't fix the problem. Also send a Pushbullet notification on restart/reboot.

Setup

1. Ideally put this in your /root home folder, otherwise replace each source /path/to/pushbullet.sh for each script

2. Create an Access Token for Pushbullet and put in pushbullet.sh. This is not necessary if you don't want to use Pushbullet.

3. Setup cronjob:

   0 * * * * bash /root/auto_restart.sh
   @reboot bash /root/notify_reboot.sh
   

4. chmod 500 /root/pushbullet.sh to prevent access token leak. Same goes with other files to be safe.

Example pushes

mail.example.com (zimbra restart)

Fri, 11 Feb 2022 10:13:00 +0100
	antivirus               Stopped
Zimbra was restarted
up 3 hours, 45 minutes

mail.example.com (zimbra restart)

Fri, 11 Feb 2022 10:15:21 +0100
	antivirus               Stopped
Zimbra restart failed to solve problem!
up 3 hours, 47 minutes

mail.example.com (reboot)

Fri, 11 Feb 2022 09:58:16 +0100
reboot   system boot  4.15.0-167-gener Fri Feb 11 09:57   still running
reboot   system boot  4.15.0-167-gener Fri Feb  4 02:15   still running

wtmp begins Wed Feb  2 17:06:09 2022