Support for partial deploy of a service

cloudlift/__init__.py

@@ -113,8 +113,9 @@ def edit_config(name, environment):
 @click.option("--build-arg", type=(str, str), multiple=True, help="These args are passed to docker build command "
                                                                   "as --build-args. Supports multiple.\
                                                                    Please leave space between name and value" )
-def deploy_service(name, environment, version, build_arg):
-    ServiceUpdater(name, environment, None, version, dict(build_arg)).run()
+@click.option('--component', help='nested service name',  multiple=True)
+def deploy_service(name, environment, version, build_arg, component):
+    ServiceUpdater(name, environment, None, version, dict(build_arg)).run(list(component))
 
 
 @cli.command()

cloudlift/deployment/service_updater.py

@@ -37,9 +37,16 @@ def __init__(self, name, environment, env_sample_file, version=None,
         self.working_dir = working_dir
         self.build_args = build_args
 
-    def run(self):
+    def run(self, component=None):
         log_warning("Deploying to {self.region}".format(**locals()))
         self.init_stack_info()
+        if component is not None:
+            found = [str for str in self.ecs_service_names if any(sub in str for sub in component)]
+            self.ecs_service_names = found
+            if not found:
+                raise UnrecoverableException("Component {component} not found in service {self.name}".format(**locals()))
+            elif len(found) != 0 and len(found) != len(component):
+                log_warning("Few Component {found} found in service {self.name}".format(**locals()))
         if not os.path.exists(self.env_sample_file):
             raise UnrecoverableException('env.sample not found. Exiting.')
         ecr_client = EcrClient(self.name, self.region, self.build_args)