Use auth file instead of creds in quadlet files

roles/image/defaults/main.yaml

@@ -1,4 +0,0 @@
----
-image_creds:
-  username: ""
-  password: ""

roles/image/meta/argument_specs.yaml

@@ -9,19 +9,3 @@ argument_specs:
         description: "The image FQIN (format registry/imagename:tag)"
         type: str
         required: true
-      image_creds:
-        description: Credentials used to authenticate with the registry
-        type: dict
-        required: false
-        default:
-          username: ""
-          password: ""
-        options:
-          username:
-            description: Username
-            type: str
-            required: true
-          password:
-            description: Password
-            type: str
-            required: true

roles/image/tasks/main.yaml

@@ -6,9 +6,14 @@
 - name: Create container image service {{ image_name }}
   containers.podman.podman_image:
     name: "{{ image_name }}"
-    username: "{{ image_creds.username if image_creds.username | length > 0 else omit }}"
-    password: "{{ image_creds.password if image_creds.password | length > 0 else omit }}"
     state: quadlet
     quadlet_filename: "{{ image_name | replace('/', '_') }}"
     quadlet_file_mode: "0600"
+    quadlet_options: >-
+      {{
+        ['AuthFile=/etc/containers/auth.json']
+        if image_name.split('/')[0] in
+        podman_registry_accounts | map(attribute='registry')
+        else []
+      }}
   notify: Reload systemd daemon