egid, dta-test file permission

docker-compose.yml

@@ -34,15 +34,16 @@ services:
 
   backend:
     container_name: backend
-    user: root
     image: hftstuttgart/cota-backend:latest
-    # user: "${EUSER}:${EGID}"
+    user: "${EUSER}:${EGID}"
     ports: # Add this section
       - "8081:8080"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - type: tmpfs
         target: /tmp/dta-tests
+        tmpfs:
+          mode: 1777
     restart: unless-stopped
     # This service can be reached by the 'web' container at http://backend:[port]