Add playbook and roles for Audio Pi

playbooks/roles/add_apt_repository/meta/argument_specs.yml

@@ -9,11 +9,11 @@ argument_specs:
         type: bool
       add_apt_repository__keyring_url:
         description: URL to the repository's keyring
-        required: true
+        required: false
         type: str
       add_apt_repository__keyring_path:
         description: Path where to store the keyring
-        required: true
+        required: false
         type: str
       add_apt_repository__repo:
         description: The apt source line

playbooks/roles/add_apt_repository/tasks/main.yml

@@ -13,6 +13,7 @@
     name: apt-transport-https
   when: add_apt_repository__https_repo
 - name: Add repository signing key to keychain
+  when: add_apt_repository__keyring_url is defined and add_apt_repository__keyring_path is defined
   ansible.builtin.apt_key:
     url: "{{ add_apt_repository__keyring_url }}"
     keyring: "{{ add_apt_repository__keyring_path }}"
@@ -21,3 +22,4 @@
   ansible.builtin.apt_repository:
     repo: "{{ add_apt_repository__repo }}"
     filename: "{{ add_apt_repository__filename }}"
+    update_cache: true