Support for clouds.yaml

[jtopjian]

For #122

@mcanevet Thank you for your patience with this. Please let me know what you think and if you see room for improvement.

[mcanevet]

@jtopjian Thanks a lot for this work.
I get "You must provide exactly one of DomainID or DomainName to authenticate by Username" with a clouds.yaml file containing:

clouds:
  test:
    auth:
      auth_url: https://cloud.example.com/v3
      username: foo
      password: bar
      project_id: deadbeef
      project_name: test
      user_domain_name: example
    region_name: regionOne
    interface: public
    identity_api_version: 3

Any idea?

[mcanevet]

It works if I add domain_name in the clouds.yaml file, but somehow I don't have this key set when I download the clouds.yaml file for horizon...
Are you sure it shouldn't be user_domain_name and user_domain_id instead of domain_name and domain_id here: https://github.com/gophercloud/utils/blob/master/openstack/clientconfig/results.go#L28-L29 ?

[mcanevet]

@jtopjian I think it should be like that : gophercloud/utils#3

[jtopjian]

@mcanevet Thank you for verifying this and for fixing up gophercloud/utils. I've rebased the vendor commit with your addition. When you have time, let me know how it's working now :)

[mcanevet]

@jtopjian works fine for me now.
Thanks a lot for this great work.

[jtopjian]

@mcanevet Perfect - thank you for testing!

@fatmcgav @catsby ping for review on this.

[catsby]

👍

[jtopjian]

@catsby Thank you!

@mcanevet Thank you very much for your patience with this feature. As well, thank you again for testing it.

[mcanevet]

@jtopjian thanks a lot for implementing this.
Time for a new release?