[stable/2024.1] Stop using CDN for CI (#2185) (#2194)

Switch image builds to use Harbor
Switch Zuul to avoid CDN
Small more fixes
Configure CI bits to not use CDN
Fixes #2187
diff --git a/images/staffeln/Dockerfile b/images/staffeln/Dockerfile
index 0a1bc5b..0884363 100644
--- a/images/staffeln/Dockerfile
+++ b/images/staffeln/Dockerfile
@@ -3,7 +3,7 @@
 
 ARG RELEASE
 
-FROM registry.atmosphere.dev/library/openstack-venv-builder:${RELEASE} AS build
+FROM harbor.atmosphere.dev/library/openstack-venv-builder:${RELEASE} AS build
 ARG STAFFELN_GIT_REF=v2.2.3
 ADD --keep-git-dir=true https://github.com/vexxhost/staffeln.git#${STAFFELN_GIT_REF} /src/staffeln
 RUN git -C /src/staffeln fetch --unshallow
@@ -13,5 +13,5 @@
         /src/staffeln
 EOF
 
-FROM registry.atmosphere.dev/library/openstack-python-runtime:${RELEASE}
+FROM harbor.atmosphere.dev/library/openstack-python-runtime:${RELEASE}
 COPY --from=build --link /var/lib/openstack /var/lib/openstack