add github for openid login

Gemfile

@@ -19,6 +19,7 @@ gem 'omniauth'
 gem 'omniauth-facebook'
 gem 'omniauth-openid'
 gem 'omniauth-google-oauth2'
+gem 'omniauth-github'
 
 # Use cancancan as authorization framework
 gem 'cancancan'

Gemfile.lock

@@ -210,6 +210,9 @@ GEM
       rack (~> 1.0)
     omniauth-facebook (1.6.0)
       omniauth-oauth2 (~> 1.1)
+    omniauth-github (1.1.2)
+      omniauth (~> 1.0)
+      omniauth-oauth2 (~> 1.1)
     omniauth-google-oauth2 (0.2.4)
       omniauth (~> 1.0)
       omniauth-oauth2 (~> 1.1)
@@ -429,6 +432,7 @@ DEPENDENCIES
   mysql2
   omniauth
   omniauth-facebook
+  omniauth-github
   omniauth-google-oauth2
   omniauth-openid
   paper_trail

app/models/user.rb

@@ -7,7 +7,7 @@ class User < ActiveRecord::Base
   # :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable, :confirmable,
-         :omniauthable, omniauth_providers: [:suse, :google, :facebook]
+         :omniauthable, omniauth_providers: [:suse, :google, :facebook, :github]
 
   has_and_belongs_to_many :roles
   has_many :openids

config/initializers/devise.rb

@@ -14,6 +14,7 @@ Devise.setup do |config|
                   name: 'google',
                   scope: 'email'
   config.omniauth :facebook, Rails.application.secrets.facebook_key, Rails.application.secrets.facebook_secret
+  config.omniauth :github, Rails.application.secrets.github_key, Rails.application.secrets.github_secret
 
   # ==> Mailer Configuration
   # Configure the e-mail address which will be shown in Devise::Mailer,

config/secrets.yml.example

@@ -45,8 +45,12 @@ production:
   # For example:
   #suse_key: 'sample data'
   #suse_secret: 'sample data'
-
   suse_key: ''
   suse_secret: ''
 
+
+  # Register your application with GitHub from https://github.com/settings/applications
+  github_key: '7e38bdc9408721600e2c'
+  github_secret: '0290d60c27b1f0b9e88d73551862f6e0136976ba'
+
   # If you add more providers that do not require a key, you still have to create the 2 variables with sample data