[openstack|identity] Added sample code to README.identity.md

lib/fog/openstack/README.identity.md

@@ -0,0 +1,69 @@
+# OpenStack Identity Service (Keystone) Example
+
+    require 'fog'
+    require 'pp'
+    
+    auth_url = "https://example.net/v2.0/tokens"
+    username = 'admin@example.net'
+    password = 'secret'
+    
+    keystone = Fog::Identity.new :provider           => 'OpenStack',
+                                 :openstack_auth_url => auth_url,
+                                 :openstack_username => username,
+                                 :openstack_api_key  => password
+                                 # Optional, self-signed certs
+                                 #:connection_options => { :ssl_verify_peer => false }
+    
+    #
+    # Listing keystone tenants
+    #
+    keystone.tenants.each do |tenant|
+      # <Fog::Identity::OpenStack::Tenant
+      #   id="46b4ab...",
+      #   description=nil,
+      #   enabled=1,
+      #   name="admin@example.net"
+      # >
+      #pp tenant
+    end
+    
+    #
+    # List users
+    #
+    keystone.users.each do |user|
+      # <Fog::Identity::OpenStack::User
+      #   id="c975f...",
+      #   email="quantum@example.net",
+      #   enabled=true,
+      #   name="quantum",
+      #   tenant_id="00928...",
+      #   password=nil
+      # >
+      # ...
+      #pp user
+    end
+    
+    #
+    # Create a new tenant
+    #
+    tenant = keystone.tenants.create :name        => 'rubiojr@example.net',
+                                     :description => 'My foo tenant'
+    
+    #
+    # Create a new user
+    #
+    user = keystone.users.create :name      => 'rubiojr@example.net',
+                                 :tenant_id => tenant.id,
+                                 :password  => 'rubiojr@example.net',
+                                 :email     => 'rubiojr@example.net'
+    
+    
+    # Find the recently created tenant
+    tenant = keystone.tenants.find { |t| t.name == 'rubiojr@example.net' }
+    # Destroy the tenant
+    tenant.destroy
+    
+    # Find the recently created user 
+    user = keystone.users.find { |u| u.name == 'rubiojr@example.net' }
+    # Destroy the user
+    user.destroy