Fix download of IPA images from Ark in Bifrost

Author: MoteHue

etc/kayobe/kolla/config/bifrost/bifrost.yml

@@ -8,3 +8,12 @@ cirros_deploy_image_upstream_url: "{{ stackhpc_overcloud_host_image_url }}"
 
 # Disable debug logging to avoid generating large log files
 ironic_debug: false
+
+# Use prebuilt release train IPA images from Ark.
+{% if stackhpc_ipa_image_bifrost_enabled | bool %}
+ipa_download_url_username: "{{ stackhpc_release_pulp_username }}"
+ipa_download_url_password: "{{ stackhpc_release_pulp_password }}"
+ipa_download_force_basic_auth: true
+ipa_download_unredirected_headers:
+  - Authorization
+{% endif %}