added ping uptime test

docker-compose.yml

@@ -8,6 +8,18 @@ services:
     environment:
       - DB_PATH=/data/speedtest.db
 
+  ping:
+    build: ./measurement
+    container_name: ping
+    restart: unless-stopped
+    network_mode: host
+    volumes:
+      - sqlite-data:/data
+    environment:
+      - DB_PATH=/data/speedtest.db
+      - PING_INTERVAL=5
+    command: python3 /app/run_ping.py
+
   grafana:
     image: grafana/grafana:latest
     container_name: grafana