[aws|compute] Add better security group documentation.

lib/fog/aws/models/compute/security_group.rb

@@ -12,6 +12,32 @@ module Fog
         attribute :ip_permissions,  :aliases => 'ipPermissions'
         attribute :owner_id,        :aliases => 'ownerId'
 
+        # Authorize access by another security group
+        #
+        #  >> g = AWS.security_groups.all(:description => "something").first
+        #  >> g.authorize_group_and_owner("some_group_name", "1234567890")
+        #
+        # == Parameters:
+        # group::
+        #   The name of the security group you're granting access to.
+        #
+        # owner::
+        #   The owner id for security group you're granting access to.
+        #
+        # == Returns:
+        #
+        # An excon response object representing the result
+        #
+        #  <Excon::Response:0x101fc2ae0
+        #    @status=200,
+        #    @body={"requestId"=>"some-id-string",
+        #           "return"=>true},
+        #    headers{"Transfer-Encoding"=>"chunked",
+        #            "Date"=>"Mon, 27 Dec 2010 22:12:57 GMT",
+        #            "Content-Type"=>"text/xml;charset=UTF-8",
+        #            "Server"=>"AmazonEC2"}
+        #
+
         def authorize_group_and_owner(group, owner)
           requires :name
 
@@ -22,6 +48,34 @@ module Fog
           )
         end
 
+        # Authorize a new port range for a security group
+        #
+        #  >> g = AWS.security_groups.all(:description => "something").first
+        #  >> g.authorize_port_range(20..21)
+        #
+        # == Parameters:
+        # range::
+        #   A Range object representing the port range you want to open up. E.g., 20..21
+        #
+        # options::
+        #   A hash that can contain any of the following keys:
+        #    :cidr_ip (defaults to "0.0.0.0/0")
+        #    :ip_protocol (defaults to "tcp")
+        #
+        # == Returns:
+        #
+        # An excon response object representing the result
+        #
+        #  <Excon::Response:0x101fc2ae0
+        #    @status=200,
+        #    @body={"requestId"=>"some-id-string",
+        #           "return"=>true},
+        #    headers{"Transfer-Encoding"=>"chunked",
+        #            "Date"=>"Mon, 27 Dec 2010 22:12:57 GMT",
+        #            "Content-Type"=>"text/xml;charset=UTF-8",
+        #            "Server"=>"AmazonEC2"}
+        #
+
         def authorize_port_range(range, options = {})
           requires :name
 
@@ -34,6 +88,15 @@ module Fog
           )
         end
 
+        # Removes an existing security group
+        #
+        # security_group.destroy
+        #
+        # ==== Returns
+        #
+        # True or false depending on the result
+        #
+
         def destroy
           requires :name
 
@@ -41,6 +104,32 @@ module Fog
           true
         end
 
+        # Revoke access by another security group
+        #
+        #  >> g = AWS.security_groups.all(:description => "something").first
+        #  >> g.revoke_group_and_owner("some_group_name", "1234567890")
+        #
+        # == Parameters:
+        # group::
+        #   The name of the security group you're revoking access to.
+        #
+        # owner::
+        #   The owner id for security group you're revoking access access to.
+        #
+        # == Returns:
+        #
+        # An excon response object representing the result
+        #
+        #  <Excon::Response:0x101fc2ae0
+        #    @status=200,
+        #    @body={"requestId"=>"some-id-string",
+        #           "return"=>true},
+        #    headers{"Transfer-Encoding"=>"chunked",
+        #            "Date"=>"Mon, 27 Dec 2010 22:12:57 GMT",
+        #            "Content-Type"=>"text/xml;charset=UTF-8",
+        #            "Server"=>"AmazonEC2"}
+        #
+
         def revoke_group_and_owner(group, owner)
           requires :name
 
@@ -51,6 +140,34 @@ module Fog
           )
         end
 
+        # Revoke an existing port range for a security group
+        #
+        #  >> g = AWS.security_groups.all(:description => "something").first
+        #  >> g.revoke_port_range(20..21)
+        #
+        # == Parameters:
+        # range::
+        #   A Range object representing the port range you want to open up. E.g., 20..21
+        #
+        # options::
+        #   A hash that can contain any of the following keys:
+        #    :cidr_ip (defaults to "0.0.0.0/0")
+        #    :ip_protocol (defaults to "tcp")
+        #
+        # == Returns:
+        #
+        # An excon response object representing the result
+        #
+        #  <Excon::Response:0x101fc2ae0
+        #    @status=200,
+        #    @body={"requestId"=>"some-id-string",
+        #           "return"=>true},
+        #    headers{"Transfer-Encoding"=>"chunked",
+        #            "Date"=>"Mon, 27 Dec 2010 22:12:57 GMT",
+        #            "Content-Type"=>"text/xml;charset=UTF-8",
+        #            "Server"=>"AmazonEC2"}
+        #
+
         def revoke_port_range(range, options = {})
           requires :name
 
@@ -63,6 +180,17 @@ module Fog
           )
         end
 
+        # Create a security group
+        #
+        #  >> g = AWS.security_groups.new(:name => "some_name", :description => "something")
+        #  >> g.save
+        #
+        # == Returns:
+        #
+        # True or an exception depending on the result. Keep in mind that this *creates* a new security group.
+        # As such, it yields an InvalidGroup.Duplicate exception if you attempt to save an existing group.
+        #
+
         def save
           requires :description, :name