You can configure authentication services with external OAuth suppliers, right now Twitter, Facebook and Google are supported.
For each platform, go to their developers section and follow their guides to create an app.
They'll ask you for your Consul Democracy's auth URL, and as you can see running rake routes
at your Consul Democracy repo locally:
user_omniauth_authorize GET|POST /users/auth/:provider(.:format) users/omniauth_callbacks#passthru {:provider=>/twitter|facebook|google_oauth2/}
So for example the URL for facebook application would be yourdomain.com/users/auth/facebook/callback
When you complete the application registration you'll get a key and secret values, those need to be stored at your config/secrets.yml
file:
twitter_key: ""
twitter_secret: ""
facebook_key: ""
facebook_secret: ""
google_oauth2_key: ""
google_oauth2_secret: ""
NOTE: Also in the case of Google, verify that the APIs Contacts API and Google+ API are enabled for the application.