[1] Formats — Cloud-Init 0.7.7 documentation ( 版) <http://cloudinit.readthedocs.org/en/latest/topics/format.html>
Supported content-types:
text/x-include-once-url
text/x-include-url
text/cloud-config-archive
text/upstart-job
text/cloud-config
text/part-handler
text/x-shellscript
text/cloud-boothook