Update the docker-compose to run also run the tomcat.

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '3'
 
 services:
-  db:
+  postgres:
     image: postgres:15-alpine
     restart: always
     volumes:
@@ -12,3 +12,12 @@ services:
       POSTGRES_PASSWORD: testpassword
     ports:
       - 5432:5432
+
+  tomcat:
+    build: .
+    restart: always
+    ports:
+      - "8080:8080"
+    depends_on:
+      - postgres
+