feat: allow prefix to image names

This is in order to support proxy/caching without
needing to maintain separate inventory override of
each and every image.

Closes-Bug: CLOUDOPS-761
Change-Id: I7585377939ac7e6757f1cdbcfcdffae02bab2715
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index 99662e4..2659902 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -8,8 +8,6 @@
 - job:
     name: atmosphere-golang-go-test
     parent: atmosphere-golang-go
-    pre-run:
-      - zuul.d/playbooks/common/switch-to-atmosphere-mirror.yml
     vars:
       go_command: test ./... -v
 
@@ -76,6 +74,9 @@
       - ^build/
       - ^doc/
       - ^releasenotes/
+    vars:
+      tox_environment:
+        ATMOSPHERE_IMAGE_PREFIX: "harbor.atmosphere.dev/"
 
 - job:
     name: atmosphere-molecule-csi