Dev/fix upgrade issue (#2)

Summary:
Summary :
Upgrade fails due to wrong ansible user (when it is not root) , Now ansible user / docker user is taken from config.yml file.

Pull Request resolved: #2

Reviewed By: tommyhuynh

Differential Revision: D33551007

Pulled By: aclave1

fbshipit-source-id: a2eb604a88c55392ed2c4becd76987e23e7b1aea

nms_stack/nms_cli/nms.py

@@ -251,6 +251,8 @@ def upgrade(ctx, config_file, host, controller, image, tags, verbose, password):
 
  generated_config = generate_common_configs(loaded_config)
  if loaded_config:
+ generated_config["ansible_user"] = loaded_config["ansible_user"]
+ generated_config["docker_user"] = loaded_config["docker_user"]
  controllers_list = loaded_config["controllers_list"]
  controllers_list = [
  ctrlr for ctrlr in controllers_list if ctrlr["name"] == controller