Open Infrastructure

I'll add things I find on the way of installing ucloud 0.0.1 in this ticket and they should be fixed prior to release.

strike through what has been fixed

Small / doc Fixes¶

• ucloud-api
  • README: include curl example on creating VM
  • Include curl example on listing VMs that belong to me
  • Include curl example on deleting VM that belong to me
• ucloud-pay
  • order of pipenv commands seems to be mixed up
  • pipenv shell->run
  • typos in getting started
  • main command is ucloud_pay instead of main
  • example uses a "seed" in the argument -> needs to be a token
  • unit is a bit strange (12000)
  • user should / needs to be able to register only for themselves
  • need to distinguish ADMIN vs. USER actions better
• all docs:
  • instead of pipenv shell and then executing, using pipenv run
  • how to configure ucloud? where is the main doc?

ucloud-api¶

After following the manual, the following error happens:

[18:17] diamond:ucloud-api% pipenv run python main.py 
Traceback (most recent call last):
  File "main.py", line 13, in <module>
    from config import etcd_client as client
  File "/home/nico/vcs/ucloud-api/config.py", line 3, in <module>
    from etcd3_wrapper import Etcd3Wrapper
ModuleNotFoundError: No module named 'etcd3_wrapper'
[18:18] diamond:ucloud-api% 

ucloud-pay¶

We need a more graceful way of failing when stuff is not configured:

[18:33] diamond:ucloud-pay% pipenv run python ucloud_pay.py 
Traceback (most recent call last):
  File "ucloud_pay.py", line 11, in <module>
    from config import etcd_client as client, logging, APP_PORT
  File "/home/nico/vcs/ucloud-pay/config.py", line 15, in <module>
    etcd_client = Etcd3Wrapper(host=config("ETCD_HOST"), port=config("ETCD_PORT"))
  File "/home/nico/.local/share/virtualenvs/ucloud-pay-_iEKDH1V/lib/python3.7/site-packages/decouple.py", line 197, in __call__
    return self.config(*args, **kwargs)
  File "/home/nico/.local/share/virtualenvs/ucloud-pay-_iEKDH1V/lib/python3.7/site-packages/decouple.py", line 85, in __call__
    return self.get(*args, **kwargs)
  File "/home/nico/.local/share/virtualenvs/ucloud-pay-_iEKDH1V/lib/python3.7/site-packages/decouple.py", line 70, in get
    raise UndefinedValueError('{} not found. Declare it as envvar or define a default value.'.format(option))
decouple.UndefinedValueError: ETCD_HOST not found. Declare it as envvar or define a default value.
[18:37] diamond:ucloud-pay% 

Easy / small improvements (?)¶

• Centralisation
  • maybe create a ucloud repo and begin to merge things
  • maybe have main ucloud script to launch components
  • maybe we add/move the documentation into there, as well
  • all this considering: how many LOC do we have at the moment?
    • need to consider this for whether it's a good idea to merge
• Configuration
  • Our configuration base is /etc/ucloud
  • Let's define an entry file like /etc/ucloud/ucloud.SOMETHING
    • something = json, ini, python, whatever
  • This should be minimal and only contain etcd information
• etcd based configuration
  • everything else should be in distributed data store