if scope.lookupvar('::cluster').to_s != 'undefined'
purp += "\n This server is a node in ganeti cluster: "
purp += scope.lookupvar('::cluster').to_s + ":\n"
if scope.lookupvar('::cluster').to_s != 'undefined'
purp += "\n This server is a node in ganeti cluster: "
purp += scope.lookupvar('::cluster').to_s + ":\n"