begin phasing in arguments instead of **arguments

scripts/uncloud

@@ -8,6 +8,17 @@ import multiprocessing as mp
 from uncloud import UncloudException
 from contextlib import suppress
 
+# the components that use etcd
+ETCD_COMPONENTS= ['api',
+                  'scheduler',
+                  'host',
+                  'filescanner',
+                  'imagescanner',
+                  'metadata',
+                  'configure' ]
+
+ALL_COMPONENTS = ETCD_COMPONENTS.copy()
+ALL_COMPONENTS.append('cli')
 
 def exception_hook(exc_type, exc_value, exc_traceback):
     logging.getLogger(__name__).error(
@@ -30,12 +41,26 @@ if __name__ == '__main__':
     parent_parser.add_argument('--debug', '-d', action='store_true', default=False,
                                help='More verbose logging')
 
-    for component in ['api', 'scheduler', 'host', 'filescanner', 'imagescanner',
-                      'metadata', 'configure', 'cli']:
+    etcd_parser = argparse.ArgumentParser(add_help=False)
+    etcd_parser.add_argument('--etcd-host')
+    etcd_parser.add_argument('--etcd-port')
+    etcd_parser.add_argument('--etcd-ca-cert',
+                             help="CA that signed the etcd certificate")
+    etcd_parser.add_argument('--etcd-cert-cert',
+                             help="Path to client certificate")
+    etcd_parser.add_argument('--etcd-cert-key',
+                             help="Path to client certificate key")
+
+    for component in ALL_COMPONENTS:
         mod = importlib.import_module('uncloud.{}.main'.format(component))
         parser = getattr(mod, 'arg_parser')
+
+        if component in ETCD_COMPONENTS:
+            subparsers.add_parser(name=parser.prog, parents=[parser, parent_parser, etcd_parser])
+        else:
             subparsers.add_parser(name=parser.prog, parents=[parser, parent_parser])
 
+
     args = arg_parser.parse_args()
     if not args.command:
         arg_parser.print_help()
@@ -46,11 +71,13 @@ if __name__ == '__main__':
         # module to not inherit anything from parent.
         # mp.set_start_method('spawn')
         arguments = vars(args)
+        print(arguments)
+        print(etcd_parser)
         try:
             name = arguments.pop('command')
             mod = importlib.import_module('uncloud.{}.main'.format(name))
             main = getattr(mod, 'main')
-            main(**arguments)
+            main(arguments)
         except UncloudException as err:
             logger.error(err)
             sys.exit(1)

uncloud/api/main.py

@@ -563,7 +563,10 @@ api.add_resource(ListHost, '/host/list')
 api.add_resource(CreateNetwork, '/network/create')
 
 
-def main(debug=False, port=None):
+def main(arguments):
+    debug = arguments['debug']
+    port  = arguments['port']
+
     try:
         image_stores = list(
             shared.etcd_client.get_prefix(