Tell me what the igw id is if we created an igw.

cloud/amazon/ec2_vpc.py

@@ -182,6 +182,17 @@ def get_vpc_info(vpc):
         'state': vpc.state,
     })
 
+def get_igw_info(igw):
+    """
+    Get info about the internet gateway.
+    """
+    if igw is None:
+        return {}
+
+    return ({
+        'id': igw.id,
+    })
+
 def find_vpc(module, vpc_conn, vpc_id=None, cidr=None):
     """
     Finds a VPC that matches a specific id or cidr + tags