While we are interested in building docker images in different
branches, it only makes sense to push 'latest' to the registry
when this is the project default branch (usually 'master').

Else when pushing different branches concurrently we might have
inconsistent image state between branches.

Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
 .gitlab-ci.d/containers.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gitlab-ci.d/containers.yml b/.gitlab-ci.d/containers.yml
index 90fac85ce46..52a915f4141 100644
--- a/.gitlab-ci.d/containers.yml
+++ b/.gitlab-ci.d/containers.yml
@@ -17,7 +17,7 @@
           -t "qemu/$NAME" -f "tests/docker/dockerfiles/$NAME.docker"
           -r $CI_REGISTRY_IMAGE
     - docker tag "qemu/$NAME" "$TAG"
-    - docker push "$TAG"
+    - test "$CI_COMMIT_BRANCH" = "$CI_DEFAULT_BRANCH" && docker push "$TAG"
   after_script:
     - docker logout
   rules:
-- 
2.26.2


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