[remove-registry-tag] Allow using in a loop

The role remove-registry-tag can not be used within
ansible loop because it sets the remove_registry_tag_api_url
variable if it is not defined and then this variabled is
never redefined during second and later iterations of the
loop.

Change-Id: I1880efc0d7d94ade7b529b1462fe15e8a58bdfc4

roles/remove-registry-tag/tasks/docker.yaml

@@ -6,9 +6,13 @@
         (container_registry_credentials[_registry].password is defined)
 
 - name: Set API base
-  when: remove_registry_tag_api_url is not defined
   set_fact:
-    remove_registry_tag_api_url: 'https://hub.docker.com/v2'
+    _remove_registry_tag_api_url: 'https://hub.docker.com/v2'
+
+- name: Override API base
+  when: remove_registry_tag_api_url is defined
+  set_fact:
+    _remove_registry_tag_api_url: '{{ remove_registry_tag_api_url }}'
 
 - name: Delete single tag
   when: remove_registry_tag_tag is defined
@@ -25,7 +29,7 @@
 
     - name: Get project tags
       uri:
-        url: '{{ remove_registry_tag_api_url }}/repositories/{{ _repopath }}/tags?page_size=1000'
+        url: '{{ _remove_registry_tag_api_url }}/repositories/{{ _repopath }}/tags?page_size=1000'
         status_code: 200
       register: _tags
 
@@ -46,7 +50,7 @@
 - name: Get dockerhub JWT token
   no_log: true
   uri:
-    url: "{{ remove_registry_tag_api_url }}/users/login/"
+    url: "{{ _remove_registry_tag_api_url }}/users/login/"
     body_format: json
     body:
       username: "{{ container_registry_credentials[_registry].username }}"
@@ -59,7 +63,7 @@
 - name: Delete tag
   no_log: true
   uri:
-    url: '{{ remove_registry_tag_api_url }}/repositories/{{ _repopath }}/tags/{{ zj_docker_tag }}'
+    url: '{{ _remove_registry_tag_api_url }}/repositories/{{ _repopath }}/tags/{{ zj_docker_tag }}'
     method: DELETE
     status_code: [200, 204]
     headers:

roles/remove-registry-tag/tasks/quay.yaml

@@ -4,9 +4,13 @@
   no_log: true
 
 - name: Set API base
-  when: remove_registry_tag_api_url is not defined
   set_fact:
-    remove_registry_tag_api_url: 'https://{{ _registry }}/api/v1'
+    _remove_registry_tag_api_url: 'https://{{ _registry }}/api/v1'
+
+- name: Override API base
+  when: remove_registry_tag_api_url is defined
+  set_fact:
+    _remove_registry_tag_api_url: '{{ remove_registry_tag_api_url }}'
 
 - name: Delete single tag
   when: remove_registry_tag_tag is defined
@@ -23,7 +27,7 @@
 
     - name: Get project tags
       uri:
-        url: '{{ remove_registry_tag_api_url }}/repository/{{ _repopath }}/tag/'
+        url: '{{ _remove_registry_tag_api_url }}/repository/{{ _repopath }}/tag/'
         status_code: 200
       register: _tags
 
@@ -45,7 +49,7 @@
 - name: Delete tag
   no_log: true
   uri:
-    url: '{{ remove_registry_tag_api_url }}/repository/{{ _repopath }}/tag/{{ zj_quay_tag }}'
+    url: '{{ _remove_registry_tag_api_url }}/repository/{{ _repopath }}/tag/{{ zj_quay_tag }}'
     method: DELETE
     status_code: [200, 204]
     headers: