root@a1:~# cloud-init
usage: cloud-init [-h] [--version] [--file FILES] [--debug] [--force]
                  {init,modules,single,dhclient-hook,features,analyze} ...
cloud-init: error: the following arguments are required: subcommand
root@a1:~# cloud-init analyze
Traceback (most recent call last):
  File "/usr/bin/cloud-init", line 11, in <module>
    load_entry_point('cloud-init==0.7.9', 'console_scripts', 'cloud-init')()
  File "/usr/lib/python3/dist-packages/cloudinit/cmd/main.py", line 775, in main
    (name, functor) = args.action
AttributeError: 'Namespace' object has no attribute 'action'