Add seed_deploy_containers_registry_attempt_login

Follow on to Ie17ef9ce1147cbaec2e42db932c7d59293b49b1b

Adds seed_deploy_containers_registry_attempt_login variable to seed.yml,
which acts as a redirection of deploy_containers_registry_attempt_login
so that the variable is more descriptive, declared in a better location,
and extensible to other groups

Change-Id: I86d8f13062ff8e664919cd5d63bc17bdafb32e0c

ansible/inventory/group_vars/all/seed

@@ -123,6 +123,10 @@ seed_users: "{{ users_default }}"
 #
 seed_containers: {}
 
+# Whether to attempt a basic authentication login to a registry when
+# deploying seed containers
+seed_deploy_containers_registry_attempt_login: "{{ kolla_docker_registry_username is truthy and kolla_docker_registry_password is truthy }}"
+
 ###############################################################################
 # Seed node firewalld configuration.
 

ansible/inventory/group_vars/seed/docker-registry

@@ -0,0 +1,7 @@
+---
+###############################################################################
+# Seed node docker regsitry configuration.
+
+# Whether to attempt a basic authentication login to a registry when
+# deploying seed containers
+deploy_containers_registry_attempt_login: "{{ seed_deploy_containers_registry_attempt_login }}"

doc/source/configuration/reference/seed-custom-containers.rst

@@ -73,9 +73,9 @@ custom seed container. In this case, basic authentication login attempts can be
 disabled by setting
 
 .. code-block:: yaml
-   :caption: ``kolla.yml``
+   :caption: ``seed.yml``
 
-   deploy_containers_registry_attempt_login: false
+   seed_deploy_containers_registry_attempt_login: false
 
 Without this setting, the login will fail because the registry has not yet been
 deployed.

etc/kayobe/seed.yml

@@ -106,6 +106,10 @@
 #
 #seed_containers:
 
+# Whether to attempt a basic authentication login to a registry when
+# deploying seed containers
+#seed_deploy_containers_registry_attempt_login:
+
 ###############################################################################
 # Seed node firewalld configuration.