Start nginx if it's not already running

letsencrypt/client/plugins/nginx/configurator.py

@@ -545,11 +545,18 @@ def nginx_restart(nginx_ctl):
         stdout, stderr = proc.communicate()
 
         if proc.returncode != 0:
-            # Enter recovery routine...
-            logging.error("Nginx Restart Failed!")
-            logging.error(stdout)
-            logging.error(stderr)
-            return False
+            # Maybe Nginx isn't running
+            nginx_proc = subprocess.Popen([nginx_ctl],
+                                          stdout=subprocess.PIPE,
+                                          stderr=subprocess.PIPE)
+            stdout, stderr = nginx_proc.communicate()
+
+            if nginx_proc.returncode != 0:
+                # Enter recovery routine...
+                logging.error("Nginx Restart Failed!")
+                logging.error(stdout)
+                logging.error(stderr)
+                return False
 
     except (OSError, ValueError):
         logging.fatal(

letsencrypt/client/plugins/nginx/tests/configurator_test.py

@@ -259,6 +259,20 @@ class NginxConfiguratorTest(util.NginxTest):
         mocked.returncode = 0
         self.assertTrue(self.config.restart())
 
+    @mock.patch("letsencrypt.client.plugins.nginx.configurator."
+                "subprocess.Popen")
+    def test_nginx_restart_fail(self, mock_popen):
+        mocked = mock_popen()
+        mocked.communicate.return_value = ('', '')
+        mocked.returncode = 1
+        self.assertFalse(self.config.restart())
+
+    @mock.patch("letsencrypt.client.plugins.nginx.configurator."
+                "subprocess.Popen")
+    def test_no_nginx_start(self, mock_popen):
+        mock_popen.side_effect = OSError("Can't find program")
+        self.assertRaises(SystemExit, self.config.restart)
+
     @mock.patch("letsencrypt.client.plugins.nginx.configurator."
                 "subprocess.Popen")
     def test_config_test(self, mock_popen):