Comment 4 for bug 317065

I have not tried this in the EU zone, but it seems to work well in the US one:

root@domU-12-31-39-03-44-37:~# ZONE=`curl http://169.254.169.254/latest/meta-data/placement/availability-zone`
root@domU-12-31-39-03-44-37:~# echo $ZONE
us-east-1c