fixed copy of version

.gitlab-ci.yml

@@ -15,7 +15,7 @@ build: #This will be executed on every push. It builds an docker image, which is
     - master
   script:
     - echo "building for branch $CI_COMMIT_REF_NAME, current date:" `date`
-    - cp VERSION /app
+    - cp VERSION /app/
     - sudo docker image prune -f #Delete old unused images
     - sudo docker pull python:3
     - sudo docker build -t gitlab.jonasled.de/jonasled/url_shorter_docker:$CI_COMMIT_REF_NAME . #Build the image with the name already set to push
@@ -34,7 +34,7 @@ build-release: #This will be executed if you push on master, it makes a new rele
     - git config --global user.email "noreply@jonasled.de"
     - git tag -a $version -m "$version" #add a tag with the current version
     - git push --tags -o ci.skip ssh://git@gitlab.jonasled.de:2222/jonasled/url_shorter_docker #Push the tag to the repo ci.skip means don't build the image again. I've configured an ssh key for the runner user,so it can push via ssh.
-    - cp VERSION /app
+    - cp VERSION /app/
     - sudo docker image prune -f #Delete old unused images
     - sudo docker pull python:3
     - sudo docker build -t gitlab.jonasled.de/jonasled/url_shorter_docker . #Build the image with the name already set to push