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docker/routlin-portal/app/config_utils.py

@@ -0,0 +1,23 @@
+import copy, json, os
+
+CONFIGS_DIR   = '/routlin_location'
+CONFIG_FILE   = f'{CONFIGS_DIR}/config.json'
+CAPTIVE_QUEUE = f'{CONFIGS_DIR}/.captive-queue'
+
+_config_cache = None
+_config_mtime = None
+
+
+def load_config():
+    global _config_cache, _config_mtime
+    try:
+        mtime = os.path.getmtime(CONFIG_FILE)
+        if _config_cache is not None and mtime == _config_mtime:
+            return copy.deepcopy(_config_cache)
+        with open(CONFIG_FILE) as f:
+            data = json.load(f)
+        _config_cache = data
+        _config_mtime = mtime
+        return copy.deepcopy(data)
+    except Exception:
+        return {}