add --private-ips

Author: andrewgiessel

python/thunder/utils/ec2.py

@@ -455,7 +455,11 @@ def setup_cluster(conn, master_nodes, slave_nodes, opts, deploy_ssh_key):
                       help="Github repo from which to checkout spark-ec2 (default: %default)")
     parser.add_option("--spark-ec2-git-branch", default="branch-1.3",
                       help="Github repo branch of spark-ec2 to use (default: %default)")
-        
+    parser.add_option("--private-ips", action="store_true", default=False,
+                      help="Use private IPs for instances rather than public if VPC/subnet " +
+                      "requires that.")
+
+    
     (opts, args) = parser.parse_args()
     if len(args) != 2:
         parser.print_help()