feat: Adds healthcheck that restarts data_handler, when any error is printed to log files

docker-compose.yml

@@ -57,6 +57,13 @@ services:
       db:
         condition: service_healthy
         restart: true
+    # if the latest `update_camera_*.log` contains "error", fail the healthcheck
+    healthcheck:
+      test: ["CMD", "sh", "-c", "ls /var/log | grep '^update_camera_' | xargs -I {} sh -c 'grep -q error /var/log/{} || exit 0; exit 1'"]
+      interval: 10s
+      timeout: 5s
+      start_period: 30s
+      retries: 5
 
 volumes:
   mariadb: