Added Cloudwatt driver

[ZuluPro]

Added Driver for new French cloud provider Cloudwatt https://www.cloudwatt.com/fr/

This provider is based on OpenStack but uses a custom kind of authentication,
The request data must look like below:
{'auth': {
'passwordCredentials': {
'username': 'THE_USERNAME',
'password': 'THE_PASSWORD'
},
'tenantId': 'THE_TENANT_ID
}}

So, I adapt classes to accept tenant_id argument.

I manually tested it with a custom script and Driver.list_nodes().

[sebgoa]

Hi, can you put this under the #OpenStack based providers ….couple lines below ?

[Kami]

Missing first line of the license header - # Licensed to the Apache Software Foundation (ASF) under one or more

[Kami]

@ZuluPro Let me know once those comments have been addressed and I will get the PR merged.

[ZuluPro]

Ok, thx! I'm not dead only in holydays...

[Kami]

@ZuluPro Hey, any progress on this?

It would be great if those comments would get addressed so the driver can be included in the next release.

[ZuluPro]

All your requests are now fixed at master of my fork.

I fixed the first line of License
Fix import statement, now with try/except, import simplejson as json
I moved service_type & auth_url in Connection class

[ZuluPro]

Do you want me to remake this patch from actual trunk ?

[sebgoa]

Hi @ZuluPro sorry for the delay. Can you rebase on trunk and squash your commits. We will then look into merging it.

[ZuluPro]

Ok, I will make !

[Kami]

@ZuluPro Thanks.

Is it possible to get a test Cloudwatt account / credentials? I would like to test this driver before merging those changes into trunk.

[ZuluPro]

@Kami, Sorry, my account is only for work purpose, Maybe you can ask them one account with notoriety of libcloud ?

[Kami]

@ZuluPro I've made some changes so it works with the latest OpenStack auth refactoring (8aa3e27) and merged changes into trunk.

Next time please make sure you create a branch for your changes and don't directly commit to trunk - this will make it easier for both of us (this time, I needed to do some git foo and rebase to get it into mergable state).

Please also submit a new pull request which inclues documentation and usage examples for the driver (see libcloud/compute/drivers*.rst` for an examples) - driver without documentation (and tests) is not really useful.

Thanks.