Integrate RAID check with Nagios for servers with software-raid

[matze]

Our Nagios setup for generic-hosts does not include checks for software RAIDs, although package monitoring-plugins-standard is installed and provides check_linux_raid anyway. Thus we want to update the Nagios config to apply this check to all servers with a software RAID.

[matze]

The only (Puppet-managed) servers without a software raid are server_10 and server_15:

mhennig@w540:~/AdblockPlus/infrastructure$ ./run.py -r $PUPPETMASTER -t \* -i /usr/lib/nagios/plugins/check_linux_raid 2>&1 | grep -B1 ^UNKNOWN
Running on server_10.adblockplus.org...
UNKNOWN
--
Running on server_15.adblockplus.org...
UNKNOWN

While server_10 does not have a RAID at all, server_15 seems to rely on the hardware RAID controller:

mhennig@w540:~/AdblockPlus/infrastructure$ ./run.py -r $PUPPETMASTER -t server10 -t server15 -i 'lspci -vv | grep -i raid || echo "(none)"'
Running on server_15.adblockplus.org...
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
Running on server_10.adblockplus.org...
(none)

[matze]

Update: server_10 is a virtual host, server_15 is misconfigured - it should have had a software RAID. The latter one should get fixed before (or at least while) this ticket is tackled.

[matze]

See also /etc/cron.daily/mdadm on precise and jessie, respectively

[abpbot]

A commit referencing this issue has landed:
​Issue 2338 - Create /etc/crontab from Puppet template