Adding more CloudLaunch CLI documentation

[bioboot]

• CloudLaunch CLI obtained from following QuickStart/README.md
• Python 3.8.5
• macOS Catalina 10.15.7

Description

I get errors using cloudlaunch deployments create and can't find docs to help me out (see below).

Background

I love the ease and utility of using CloudLaunch through the web interface and would like to learn more about using the CLI. The quick start guide worked as advertised and I can list my deployments with

cloudlaunch deployments list

and I see there is a create option but I don't see any documentation for that beyond what I can get with the --help flag.

cloudlaunch deployments create [OPTIONS] NAME APPLICATION CLOUD

Trying the cmd from the quickstart page and the README.md here yields an error for me (see below). I guess I am missing some "required parameters" like id and I have tried a few variants but would benefit from some documentation and/or guidance. Thanks!

> cloudlaunch deployments create my-ubuntu-test ubuntu amazon-us-east-n-virginia --application-version 16.04
Traceback (most recent call last):
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/bin/cloudlaunch", line 8, in <module>
    sys.exit(client())
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/cloudlaunch_cli/main.py", line 103, in create_deployment
    cloudlaunch_client = create_api_client(cloud)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/cloudlaunch_cli/main.py", line 20, in create_api_client
    cloud_resource = cloudlaunch_client.infrastructure.clouds.get(cloud)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/cloudlaunch_cli/api/endpoints.py", line 96, in get
    item = self._client.action(document, self.path + ['read'],
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/coreapi/client.py", line 160, in action
    _validate_parameters(link, params)
  File "/Users/barry/tmpwork/gvl-cmdlaunch/venv/lib/python3.8/site-packages/coreapi/client.py", line 80, in _validate_parameters
    raise exceptions.ParameterError(errors)
coreapi.exceptions.ParameterError: {'id': 'This parameter is required.', 'slug': 'Unknown parameter.'}

[nuwang]

@bioboot At present, the documentation is virtually non-existent. Possibly the best point of reference are the tests:

cloudlaunch-cli/tests/test_cloudlaunch_cli.py

Line 56 in 7641361

def test_create_deployments(self):

We've been intending to switch the cli from coreapi to openapi, and have the cli auto-generated, so that the documentation and examples also become clearer, but due to time pressure, that has gone into the backburner. PRs and doc updates would be most welcome.