Merge pull request #673 from stackhpc/document-kolla-filter

Document stackhpc_pulp_images_kolla_filter variable

Author: markgoddard

doc/source/configuration/release-train.rst

@@ -170,6 +170,16 @@ promoted to production:
 
    kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/pulp-repo-promote-production.yml
 
+Synchronising all Kolla container images can take a long time. A limited list
+of images can be synchronised using the ``stackhpc_pulp_images_kolla_filter``
+variable, which accepts a whitespace-separated list of regular expressions
+matching Kolla image names. Usage is similar to ``kolla-build`` CLI arguments.
+For example:
+
+.. code-block:: console
+
+   kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/pulp-container-sync.yml -e stackhpc_pulp_images_kolla_filter='"^glance nova-compute$"'
+
 Initial seed deployment
 -----------------------