[Nut-upsuser] Email Alerts for Multiple UPSs with upssched

[Garrett Michael Hayes]

Ah!  So I can detect the source UPS in the upssched.conf and pass it as a distinct event to the shell script.  That sounds like an excellent approach.

Thanks!

GMH

From: O'Shaughnessy, Mike [mailto:Mike.OShaughnessy at gd-ms.com]
Sent: Tuesday, October 31, 2017 12:46 PM
To: Garrett Michael Hayes <Garrett at VerbalImaging.com>; nut-upsuser at lists.alioth.debian.org
Subject: RE: Email Alerts for Multiple UPSs with upssched

I'm running a single "nut-server" that monitors seven ups units.

In upsmon.conf:
MONITOR ups-1   0 <User> <Pw> master
MONITOR ups-2   0 <User> <Pw> master
MONITOR ups-3   0 <User> <Pw> master
MONITOR ups-4   0 <User> <Pw> master
MONITOR ups-5   1 <User> <Pw> master
MONITOR ups-6   1 <User> <Pw> master
MONITOR ups-7   0 <User> <Pw> master

NOTIFYCMD /sbin/upssched

NOTIFYFLAG ONLINE       SYSLOG+WALL+EXEC
NOTIFYFLAG ONBATT       SYSLOG+WALL+EXEC
NOTIFYFLAG LOWBATT      SYSLOG+WALL+EXEC
NOTIFYFLAG FSD          SYSLOG+WALL+EXEC
NOTIFYFLAG COMMOK       SYSLOG+WALL+EXEC
NOTIFYFLAG COMMBAD      SYSLOG+WALL+EXEC
NOTIFYFLAG SHUTDOWN     SYSLOG+WALL+EXEC
NOTIFYFLAG REPLBATT     SYSLOG+WALL+EXEC
NOTIFYFLAG NOCOMM       SYSLOG+WALL+EXEC
NOTIFYFLAG NOPARENT     SYSLOG+WALL+EXEC

In upssched.conf
CMDSCRIPT /bin/upssched-cmd

AT LOWBATT ups-1        EXECUTE ups-1-low
AT LOWBATT ups-2        EXECUTE ups-2-low
AT LOWBATT ups-3        EXECUTE ups-3-low
AT LOWBATT ups-4        EXECUTE ups-4-low
AT LOWBATT ups-5        EXECUTE ups-5-low
AT LOWBATT ups-6        EXECUTE ups-6-low
AT LOWBATT ups-7        EXECUTE ups-7-low

Upssched-cmd:

echo "upssched-cmd entry was $1"

case $1 in
        ups-1-low)
                /ws/tools/shutdownUps-1
                logger -t upssched-cmd "UPS 1 low battery"
                ;;
        ups-2-low)
                /ws/tools/shutdownUps-2
                logger -t upssched-cmd "UPS 2 low battery"
                ;;
      ups-3-low)
                /ws/tools/shutdownUps-3
                logger -t upssched-cmd "UPS 3 low battery"
                ;;
        ups-4-low)
                /ws/tools/shutdownUps-4
                logger -t upssched-cmd "UPS 4 low battery"
                ;;
        ups-5-low)
                /ws/tools/shutdownUps-5
                logger -t upssched-cmd "UPS 5 low battery"
                ;;
        ups-6-low)
                /ws/tools/shutdownUps-6
                logger -t upssched-cmd "UPS 6 low battery"
                ;;
        ups-7-low)
                /ws/tools/shutdownUps-7
                logger -t upssched-cmd "UPS 7 low battery"
                ;;
Esac

Scripts like 'shutdownUPS-N' do this:

*        Foreach linux box on the ups, log in and issue "shutdown -h now"

*        Foreach VMWare server on the ups, log in and issue "/sbin/shutdown.sh && /sbin/poweroff"

Hope that helps!

Mike

From: Nut-upsuser [mailto:nut-upsuser-bounces+mike.oshaughnessy=gd-ms.com at lists.alioth.debian.org] On Behalf Of Garrett Michael Hayes
Sent: Tuesday, October 31, 2017 11:10 AM
To: nut-upsuser at lists.alioth.debian.org<mailto:nut-upsuser at lists.alioth.debian.org>
Subject: [Nut-upsuser] Email Alerts for Multiple UPSs with upssched

Greetings Gentlebeings,

I have started deploying a number of NUT instances on Raspberry Pi machines (Raspbian Jessie) across my network.  The purpose of these "nutcases" as we refer to them is to monitor the status of the UPSs supporting our network switching infrastructure and notify us of power and battery events via email.  No shutdown or other actions are required.

Everything is going spiffy as all get-out so far.  But now I'm running up against a configuration issue I don't quite know how to address.

Thus far each "nutcase" has been configured to monitor a single UPS.  Now I want to deploy one to monitor three UPSs in a larger switch closet.  Adding the additional UPSs to ups.conf and upsmon.conf is fairly straightforward.  But I'm darned if I can figure out how to configure the email alerts to let me know WHICH UPS is the source of an event.

I'm using upssched as my NOTIFYCMD, and it in turn is calling a little shell script that reads the flag that's passed and sends an email.  What I can't figure out is how (if there is a way) to determine the originating UPS.  It seems that only the status flag makes it across to the shell script.  Or at least if it's passing more than that, I don't know how to retrieve it.

I'm sure I must be missing something simple.  Any thoughts/pointers would be appreciated!

Garrett Michael Hayes

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