add: hub template

hub/config.py

@@ -0,0 +1,26 @@
+import os
+
+
+def try_parse_int(value: str):
+    try:
+        return int(value)
+    except Exception:
+        return None
+
+
+# Configuration for the Store API
+STORE_API_HOST = os.environ.get("STORE_API_HOST") or "localhost"
+STORE_API_PORT = try_parse_int(os.environ.get("STORE_API_PORT")) or 8000
+STORE_API_BASE_URL = f"http://{STORE_API_HOST}:{STORE_API_PORT}"
+
+# Configure for Redis
+REDIS_HOST = os.environ.get("REDIS_HOST") or "localhost"
+REDIS_PORT = try_parse_int(os.environ.get("REDIS_PORT")) or 6379
+
+# Configure for hub logic
+BATCH_SIZE = try_parse_int(os.environ.get("BATCH_SIZE")) or 20
+
+# MQTT
+MQTT_BROKER_HOST = os.environ.get("MQTT_BROKER_HOST") or "localhost"
+MQTT_BROKER_PORT = try_parse_int(os.environ.get("MQTT_BROKER_PORT")) or 1883
+MQTT_TOPIC = os.environ.get("MQTT_TOPIC") or "processed_agent_data_topic"