Substituting 'localhost' for wildcard '*' in image-serve validation

Recent changes to the httpd config template[0] have led to
failure of the image-serve validation during the "Ensure registry does answer"
task as the '*' host was not reachable.

Substitution of the 'localhost' for '*' should resolve the issue.

Same modification was applied to the "Ensure port is open" task
for the sake of consistency.

Closes-Bug: #1959864

[0] 9b2ffd10dc
Signed-off-by: Jiri Podivin <jpodivin@redhat.com>
Change-Id: I90171b424f0678001c2ca53a1fee819993fff6f5

roles/image_serve/tasks/main.yaml

@@ -17,13 +17,13 @@
 - name: Ensure port is open
   wait_for:
     port: "{{ container_registry_port }}"
-    host: "{{ virthost_name.stdout }}"
+    host: "{{ virthost_name.stdout | regex_replace('^\\*$', 'localhost')}}"
     timeout: 10
 
 - name: Ensure registry does answer
   uri:
     method: HEAD
-    url: "http://{{ virthost_name.stdout }}:{{ container_registry_port }}/v2/index.json"
+    url: "http://{{ virthost_name.stdout | regex_replace('^\\*$', 'localhost')}}:{{ container_registry_port }}/v2/index.json"
     status_code:
       - 200
       - 204