CirrOS doesn't support MIME multipart userdata

[Dmitry Teselkin]

Script /etc/init.d/cloud-userdata could only execute 'simple' userdata sections which contain only one script without any extra information.

However, under some circumstances userdata section could be more complex, and contain several sections, in MIME multipart format.

To support this I've created a few functions which could parse such userdata sections and execute their parts.

These function are available here - https://raw.github.com/dmitry-teselkin/cirros/master/config.local.sh

/etc/init.d/cloud-userdata also should be modified - https://raw.github.com/dmitry-teselkin/cirros/master/cloud-userdata

[Scott Moser (smoser)]

I did a proof of concept that does the file splitting bit in pure awk, this avoids a bunch of forks.

It works on my little 'combined-userdata.txt' that was created from https://help.ubuntu.com/community/CloudInit (write-mime-multipart).

The other thing I'd like for it to do is to support cloud-config-archive formatted as json (ie, not supporting yaml, but just json).

This shouldnt be that hard since we already have the json parser in json2fstree.

attaching the split-multipart.awk here so I don't lose it.

[Dmitry Teselkin (teselkin-d)]

I've made a patch for 0.3.1 based on your script. It works for me. Could you please check it too?