Folks,
Have anybody tried to inject user data into instances? Or if anybody
actually tried to use Cloudpipe / VPN functionality?
It seems like there is some code missing (at least on libvirt/connection
level).
If I’m not missing anything, EC2 RunInstances takes user_data from kwargs
arguments and provides it to compute_api, who stores it in base_options /
instances table.
Cloudpipe’s launch_vpn_instance also goes through the same path. However,
there is no any parser of user_data field on compute manager / driver level.
For example, if we will look at spawn implementation in libvirt:
it calls _create_image(instance, …
, who calls
disk.inject_data(basepath('disk'), key, net, partition=target_partition,
nbd=FLAGS.use_cow_images)
where image is mounted as nbd device and key/net information
is inserted by
inject_data_into_fs(tmpdir, key, net, utils.execute)
_inject_key_into_fs
_inject_net_into_fs
It seems reasonable to pass user data to disk.inject_data and
inject_data_into_fs and inject it into FS as well, but there is no such code
…
Or am I missing anything?
Another interesting situation is with inject_file compute APIs …
on API level there is no even file/contents fields, only
def inject_file(self, context, instance_id):
but they exist on compute.manager level:
def inject_file(self, context, instance_id, path, file_contents):
Thanks,
-Vladimir
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