Hi i recently wrote a PHP Skript which is running in an endless-loop and try to connect every 10 seconds to 127.0.0.1 and receive the service-greeting
if the connection fails or there is no response
"killall dbmail-imapd" or "killall dbmail-pop3d"
on systemd-systems with "Restart=always" the "killall"
triggers the restart by systemd while prevent that
a for whatever reason manually stopped daemon get
fired up by a restart and this should catch the cases
from thursday where the processes refused to respond
another script greps the syslog for "time over, scheduling restart"
twice an hour and triggers cronmails to take notice of this but
that does a lot of other things on the infrastructure and so no
way to publish ist
anybody feel free to reuse these two units and the worker
on systemd-installations (yes, i know PHP is not the first
language for services, but the one i use regulary *gg*)
________________________________________________________
[root@mail:~]$ systemctl status monitor-dbmail-imapd.service
monitor-dbmail-imapd.service - monitor dbmail-imapd
Loaded: loaded (/etc/systemd/system/monitor-dbmail-imapd.service; enabled)
Active: active (running) since Mo 2013-08-19 16:07:16 CEST; 5min ago
Main PID: 5209 (check-dbmail-se)
CGroup: name=systemd:/system/monitor-dbmail-imapd.service
└─5209 /usr/bin/php /usr/local/bin/check-dbmail-service.php 143
dbmail-imapd
[root@mail:~]$ systemctl status monitor-dbmail-pop3d.service
monitor-dbmail-pop3d.service - monitor dbmail-pop3d
Loaded: loaded (/etc/systemd/system/monitor-dbmail-pop3d.service; enabled)
Active: active (running) since Mo 2013-08-19 16:07:16 CEST; 5min ago
Main PID: 5210 (check-dbmail-se)
CGroup: name=systemd:/system/monitor-dbmail-pop3d.service
└─5210 /usr/bin/php /usr/local/bin/check-dbmail-service.php 110
dbmail-pop3d
[Unit]
Description=monitor dbmail-pop3d
After=dbmail-pop3d.service
[Service]
Type=simple
ExecStart=/usr/local/bin/check-dbmail-service.php 110 dbmail-pop3d
Restart=always
RestartSec=1
TimeoutSec=1
Nice=19
IOSchedulingClass=3
User=root
Group=root
PrivateTmp=true
NoNewPrivileges=yes
CapabilityBoundingSet=CAP_KILL
ReadOnlyDirectories=/etc
ReadOnlyDirectories=/usr
ReadOnlyDirectories=/proc
ReadOnlyDirectories=/sys
InaccessibleDirectories=/boot
InaccessibleDirectories=/home
InaccessibleDirectories=/var/lib/rpm
InaccessibleDirectories=/var/lib/yum
InaccessibleDirectories=/var/spool
[Install]
WantedBy=multi-user.target[Unit]
Description=monitor dbmail-imapd
After=dbmail-imapd.service
[Service]
Type=simple
ExecStart=/usr/local/bin/check-dbmail-service.php 143 dbmail-imapd
Restart=always
RestartSec=1
TimeoutSec=1
Nice=19
IOSchedulingClass=3
User=root
Group=root
PrivateTmp=true
NoNewPrivileges=yes
CapabilityBoundingSet=CAP_KILL
ReadOnlyDirectories=/etc
ReadOnlyDirectories=/usr
ReadOnlyDirectories=/proc
ReadOnlyDirectories=/sys
InaccessibleDirectories=/boot
InaccessibleDirectories=/home
InaccessibleDirectories=/var/lib/rpm
InaccessibleDirectories=/var/lib/yum
InaccessibleDirectories=/var/spool
[Install]
WantedBy=multi-user.target<<attachment: check-dbmail-service.php>>
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