ensure juggler is triggered on nightly builds

.gitlab-ci.yml

@@ -24,6 +24,9 @@ variables:
   DOCKER_NTRIES: 5
   DOCKER_WAIT_TIME: 5
 
+  ## is this nightly or not?
+  NIGHTLY: 0
+
 stages:
   - config
   - build:base      ## base OS image
@@ -287,7 +290,7 @@ jug_xl:singularity:nightly:
 juggler:master:
   stage: deploy
   rules:
-    - if: '$NIGHTLY == "0" && $CI_COMMIT_BRANCH == "master"'
+    - if: '$NIGHTLY != "0" && $CI_COMMIT_BRANCH == "master"'
       when: on_success
     - when: never
   needs: