feature: Support for remote docker host

Author: samadwar

src/sagemaker/local/utils.py

@@ -128,13 +128,12 @@ def get_child_process_ids(pid):
             return pids + get_child_process_ids(child_pid)
     else:
         return []
-    
+
 def get_docker_host():
-    """Discover remote docker host address (if applicable) or use "localhost"
-    
+    """Discover remote docker host address (if applicable) or use "localhost"    
     Use "docker context inspect" to read current docker host endpoint url
     url must start with "tcp://"
-    
+
     Args:
 
     Returns:
@@ -144,4 +143,4 @@ def get_docker_host():
     docker_context_host_url = json.loads(docker_context_string)[0]['Endpoints']['docker']['Host']
     parsed_url = urlparse(docker_context_host_url)
     docker_host = parsed_url.hostname if parsed_url.hostname and parsed_url.scheme=="tcp" else "localhost"
-    return docker_host
+    return docker_host