Add become: true

defaults/main.yml

@@ -41,7 +41,7 @@ docker_add_repo: true
 docker_repo_url: https://download.docker.com/linux
 
 # Used only for Debian/Ubuntu/Pop!_OS/Linux Mint. Switch 'stable' to 'nightly' if needed.
-docker_apt_release_channel: nightly
+docker_apt_release_channel: stable
 # docker_apt_ansible_distribution is a workaround for Ubuntu variants which can't be identified as such by Ansible,
 # and is only necessary until Docker officially supports them.
 docker_apt_ansible_distribution: "{{ 'ubuntu' if ansible_distribution in ['Pop!_OS', 'Linux Mint'] else ansible_distribution }}"

tasks/setup-Debian.yml

@@ -34,6 +34,7 @@
     mode: "0755"
 
 - name: Add Docker apt key.
+  become: true
   ansible.builtin.get_url:
     url: "{{ docker_apt_gpg_key }}"
     dest: /etc/apt/keyrings/docker.asc