Add e2e test job for ephemeral cluster

Change-Id: Id7902e3220dc3621776b23b435949bf782e383d1
diff --git a/jjb/metal3/projects.yml b/jjb/metal3/projects.yml
index dba00df..b8ad712 100644
--- a/jjb/metal3/projects.yml
+++ b/jjb/metal3/projects.yml
@@ -242,6 +242,9 @@
       - capm3_main_e2e_upgrade_tests:
           exclude:
             - image_os: centos
+      - capm3_main_e2e_ephemeral_tests:
+          exclude:
+            - image_os: ubuntu
       - capm3_main_e2e_tests:
           version:
             - v1b1: