add: agent template

agent/src/config.py

@@ -0,0 +1,17 @@
+import os
+
+
+def try_parse(type, value: str):
+    try:
+        return type(value)
+    except Exception:
+        return None
+
+
+# MQTT config
+MQTT_BROKER_HOST = os.environ.get("MQTT_BROKER_HOST") or "mqtt"
+MQTT_BROKER_PORT = try_parse(int, os.environ.get("MQTT_BROKER_PORT")) or 1883
+MQTT_TOPIC = os.environ.get("MQTT_TOPIC") or "agent"
+
+# Delay for sending data to mqtt in seconds
+DELAY = try_parse(float, os.environ.get("DELAY")) or 1