Support all Fog OpenStack options

[BobbyRyterski]

This loads all the openstack options directly from Fog to create auth_params. The only deviations from Fog are the two that existed previously, openstack_insecure and openstack_password.

[BobbyRyterski]

This is similar to my pull request to kitchen-openstack. Since knife-openstack is a little more complex, this will probably need some work.

[jjasghar]

We'll need some documentation on the README for the "sane" defaults for this change. I want to make sure something like this is as delightful as possible.

[jjasghar]

I ran the specs against this and it blew up. I'll see if i can fix it, but some help on that would be appreciated.

[BobbyRyterski]

I've already dug into this a bit.

The builds have been failing since 84f5a86 because the Rake task runs all tests (spec/\*\*\{,/\*/\*\*\}/\*_spec.rb) instead of just unit tests (spec/unit/**/*_spec.rb). I'm not sure if you want to go back to just running unit tests or not.

Regardless, I was able to fix some of the functional tests by adding the ohai hint to @config.

# spec/functional/server_create_func_spec.rb:76
     context 'for Linux' do
       before do
        @config = { openstack_floating_ip: '-1', bootstrap_ip_address: '75.101.253.10', ssh_password: 'password', hints: { "openstack" => {} }}

The unit test failures cropped up in d120353. It looks like they're using the wrong expectation syntax. It should use be_nil.

# spec/unit/openstack_service_spec.rb:35
     it 'sets the api_endpoint in auth params' do
      expect(@instance.instance_variable_get(:@auth_params)[:openstack_auth_url]).to be_nil

I can throw those fixes in this PR or make a new one. Do you have a preference?

[jjasghar]

Yeah go ahead and add it to this PR. I'm cool with that.

[jjasghar]

I'll wait for this to be merged then I'll release the gem.

[BobbyRyterski]

@jjasghar, is this the kind of example you were looking for?

[jjasghar]

Yep, this works!