add env vars to config

fixes #509

frigate/app.py

@@ -39,6 +39,10 @@ class FrigateApp():
         self.log_queue = mp.Queue()
         self.camera_metrics = {}
 
+    def set_environment_vars(self):
+        for key, value in self.config.environment_vars.items():
+            os.environ[key] = value
+
     def ensure_dirs(self):
         for d in [RECORD_DIR, CLIPS_DIR, CACHE_DIR]:
             if not os.path.exists(d) and not os.path.islink(d):
@@ -201,6 +205,7 @@ class FrigateApp():
                 logger.error(f"Error parsing config: {e}")
                 self.log_process.terminate()
                 sys.exit(1)
+            self.set_environment_vars()
             self.ensure_dirs()
             self.check_config()
             self.set_log_levels()

frigate/config.py

@@ -248,7 +248,8 @@ FRIGATE_CONFIG_SCHEMA = vol.Schema(
         vol.Optional('objects', default={}): OBJECTS_SCHEMA,
         vol.Optional('motion', default={}): MOTION_SCHEMA,
         vol.Optional('detect', default={}): DETECT_SCHEMA,
-        vol.Required('cameras', default={}): CAMERAS_SCHEMA
+        vol.Required('cameras', default={}): CAMERAS_SCHEMA,
+        vol.Optional('environment_vars', default={}): { str: str }
     }
 )
 
@@ -982,6 +983,7 @@ class FrigateConfig():
         self._snapshots = SnapshotsConfig(config['clips'])
         self._cameras = { name: CameraConfig(name, c, config) for name, c in config['cameras'].items() }
         self._logger = LoggerConfig(config['logger'])
+        self._environment_vars = config['environment_vars']
 
     def _sub_env_vars(self, config):
         frigate_env_vars = {k: v for k, v in os.environ.items() if k.startswith('FRIGATE_')}
@@ -1015,7 +1017,8 @@ class FrigateConfig():
             'clips': self.clips.to_dict(),
             'snapshots': self.snapshots.to_dict(),
             'cameras': {k: c.to_dict() for k, c in self.cameras.items()},
-            'logger': self.logger.to_dict()
+            'logger': self.logger.to_dict(),
+            'environment_vars': self._environment_vars
         }
 
     @property
@@ -1049,3 +1052,7 @@ class FrigateConfig():
     @property
     def cameras(self) -> Dict[str, CameraConfig]:
         return self._cameras
+
+    @property
+    def environment_vars(self):
+        return self._environment_vars