Icinga/nagios check for FSFE meetups @ chaosdorf

check_fsfe.sh

#!/bin/zsh

fsfe=0
for j in {1..7}; do
    month=$(date +"%m")
    date=$(date -d "$month/1 + 1 month - $j day" +"%w %F")
    if [ ${date:0:1} -eq 3 ]; then
        fsfe=${date:2}
    fi
done

today=$(date +%F)
if [ "$today" = "$fsfe" ]; then
        hour=$(date +%H)
        if [ "$hour" -ge "19" ]; then
                if [ "$hour" -lt "22" ]; then
                        # FSFE!
                        echo "CRITICAL - FSFE meetup in place"
                        exit 2 # CRITICAL
                else
                        echo "OK - FSFE meetup should be over"
                        exit 0 # OK
                fi
        else
                echo "WARNING - FSFE meetup today"
                exit 1 # WARNING
        fi
else
        echo "OK - no FSFE meetup today"
        exit 0 # OK
fi