From a268aae540a040fe14ba4627a174050f220834e2 Mon Sep 17 00:00:00 2001
From: Razvan Cosma <75040720+razvan-moj@users.noreply.github.com>
Date: Thu, 6 May 2021 16:47:08 +0300
Subject: [PATCH] allow specifying the service as env var (#3899)

* allow specifying the service as env var

This is required if running as a Github Action which doesn't allow passing parameters to `docker create` but allows environment variables

* import os

* Update server.py
---
 moto/server.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/moto/server.py b/moto/server.py
index 748cd2974..338ca9db3 100644
--- a/moto/server.py
+++ b/moto/server.py
@@ -3,6 +3,7 @@ from __future__ import unicode_literals
 import argparse
 import io
 import json
+import os
 import re
 import signal
 import sys
@@ -262,7 +263,7 @@ def main(argv=sys.argv[1:]):
         "service",
         type=str,
         nargs="?",  # http://stackoverflow.com/a/4480202/731592
-        default=None,
+        default=os.environ.get("MOTO_SERVICE"),
     )
     parser.add_argument(
         "-H", "--host", type=str, help="Which host to bind", default="127.0.0.1"