Restrict production deployment

.gitlab-ci.yml

@@ -61,6 +61,10 @@ production_deploy:
     REMOTE_DIR: ${PRODUCTION_DIR}
     GIT_STRATEGY: none
 
+  only:
+    - master
+  when: manual
+
   environment:
     name: Production
     url: http://tls-tracking.sauerburger.com/