chore(keycloak): split upstream container image coordinates

roles/keycloak/defaults/main.yml

@@ -2,7 +2,17 @@
 keycloak_version: 26.0.5
 keycloak_container_name: keycloak
 
-keycloak_container_upstream_image_name: quay.io/keycloak/keycloak
+keycloak_container_image_upstream_registry: quay.io
+keycloak_container_image_upstream_namespace: keycloak
+keycloak_container_image_upstream_name: keycloak
+keycloak_container_image_upstream: >-2
+  {{
+    ([
+      keycloak_container_image_upstream_registry | default([]),
+      keycloak_container_image_upstream_namespace | default([]),
+      keycloak_container_image_upstream_name,
+    ] | flatten | join('/'))
+  }}
 keycloak_container_image_name: "keycloak:{{ keycloak_version }}-custom"
 
 keycloak_container_database_vendor: postgres

roles/keycloak/tasks/main.yml

@@ -27,9 +27,9 @@
     - keycloak-container
     - keycloak-build-container
 
-- name: Ensure upstream Keycloak container image '{{ keycloak_container_upstream_image_name }}:{{ keycloak_version }}' is present
+- name: Ensure upstream Keycloak container image '{{ keycloak_container_image_upstream }}:{{ keycloak_version }}' is present
   docker_image:
-    name: "{{ keycloak_container_upstream_image_name }}:{{ keycloak_version }}"
+    name: "{{ keycloak_container_image_upstream }}:{{ keycloak_version }}"
     source: pull
     state: present
   register: keycloak_container_image_upstream_status

roles/keycloak/templates/Dockerfile.j2

@@ -1,4 +1,4 @@
-FROM {{ keycloak_container_upstream_image_name }}:{{ keycloak_version }} as builder
+FROM {{ keycloak_container_image_upstream }}:{{ keycloak_version }} as builder
 
 # Enable health and metrics support
 ENV KC_HEALTH_ENABLED={{ keycloak_config_health_enabled | ternary('true', 'false') }}
@@ -27,7 +27,7 @@ RUN {{ keycloak_container_working_directory }}/bin/kc.sh --verbose \
 {% endif %}
 
 
-FROM {{ keycloak_container_upstream_image_name }}:{{ keycloak_version }}
+FROM {{ keycloak_container_image_upstream }}:{{ keycloak_version }}
 COPY --from=builder {{ keycloak_container_working_directory }}/ {{ keycloak_container_working_directory }}/
 
 ENV KC_HOSTNAME={{ keycloak_config_hostname }}