this tells kuma that cron is running - its the last cron line in /etc/crontab on mara, if anything in cron syntax/barfs, then this heartbeat script will not be run, and the CRON check in kuma will go crit

kuma-cron

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# uncomment to test
+#exit 0
+
+# this is complex, we use cron to run stuff, but if cron fails, no script gets
+# an update, BUT, as prometheus is just looking at the last state of the file,
+# it would see the last values and think they are 'current'.
+#
+# SO, lets date 'stamp' when we ran this, rather than give a boolean, because if
+# its running this will update the date, if not, it wont anyway :)
+
+# tell kuma so we don't get an alert (and use no DNS, no internet)
+curl 'http://mara.ddp.net:3001/api/push/VPFRqXRjvq?status=up&msg=OK'