Add zmirror's crontab to git.

(imported from commit 37c96933a507c661c2ca252c78e5cd9e8a699ba2)

bots/zephyr-mirror-crontab

@@ -0,0 +1,26 @@
+SHELL=/bin/bash
+# Edit this file to introduce tasks to be run by cron.
+#
+# Each task to run has to be defined through a single line
+# indicating with different fields when the task will be run
+# and what command to run for the task
+#
+# To define the time you can provide concrete values for
+# minute (m), hour (h), day of month (dom), month (mon),
+# and day of week (dow) or use '*' in these fields (for 'any').
+#
+# Notice that tasks will be started based on the cron's system
+# daemon's notion of time and timezones.
+#
+# Output of the crontab jobs (including errors) is sent through
+# email to the user the crontab file belongs to (unless redirected).
+#
+# For example, you can run a backup of all your user accounts
+# at 5 a.m every week with:
+# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
+#
+# For more information see the manual pages of crontab(5) and cron(8)
+#
+# m h  dom mon dow   command
+35 * * * * kinit -k -t /home/humbug/tabbott.extra.keytab tabbott/extra@ATHENA.MIT.EDU
+*/2 * * * * /home/humbug/api/bots/check-mirroring &> /var/run/nagios/check-mirroring-results