Finding out if you're a Rackspace instance

Different hosting providers do things slightly differently, so it's sometimes handy to be able to figure out where you are. Rackspace is based on Xen and their provided images should include the xenstore-ls command available. xenstore-ls vm-data will give you a handy provider and even region fields to let you know where you are.

function is_rackspace {
  if [ ! -f /usr/bin/xenstore-ls ]; then
      return 1

  /usr/bin/xenstore-ls vm-data | grep -q "Rackspace"

if is_rackspace; then
  echo "I am on Rackspace"

Other reading about how this works: