Add vo-list command

[sebastian-luna-valero]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)
• If applicable, I’ve added docs and tests

Description of changes

Added a new command to filter sites in the EGI Federated Cloud supporting a VO

[tdviet]

@sebastian-luna-valero thank very much for the PR. My first thought of fedcloud site vo-list is about listing the VO supported on a given site. What about merging the new command which the fedcloud site list command, i.e. fedcloud site list --vo VO where if the --vo option is omitted, it will print all sites, if present, print only sites supported the VO.

PS. Sorry for unfinished comments, misclicking :-)

[sebastian-luna-valero]

Thanks for your feedback @tdviet

What about merging the new command which the fedcloud site list command, i.e. fedcloud site list --vo VO where if the --vo option is omitted, it will print all sites, if present, print only sites supported the VO.

That was my initial attempt, but I then realised that the vo_params decorator is required:

fedcloudclient/fedcloudclient/decorators.py

Line 98 in 0f875de

required=True,

Therefore, adding it to the existing list command for sites will return:

$ fedcloud site list
Usage: fedcloud site list [OPTIONS]
Try 'fedcloud site list --help' for help.

Error: Missing option '--vo'.

That's why I created a new command. However, I agree the naming might be confusing. Instead, how should I call it to make it more intuitive?

[tdviet]

What about creating a new decorator for --vo parameter without the required, e.g. vo_params_unrequired. I don't think there will be any conflicts between decorators

[sebastian-luna-valero]

Done!

I don't think there will be any conflicts between decorators

That was exactly my concern and I didn't test it. Seems to work well, please check.

[tdviet]

LGTM