Autobuild docker imahe for application

cntmanage/docker/docker-compose.yml

@@ -19,6 +19,9 @@ services:
       PGDATA: /var/lib/postgresql/data
 
   flightslot:
+    build: 
+      context: ..
+      dockerfile: ./docker/flightslot.Dockerfile
     image: flightslot:latest
     container_name: tech-flightslot
     restart: unless-stopped