+docker_apt_ignore_key_error: true
+docker_apt_gpg_key: "https://download.docker.com/linux/{{ ansible_distribution | lower }}/gpg"
+docker_apt_gpg_key_state: present
+
+# Used only for RedHat/CentOS/Fedora.
+docker_yum_repo_url: https://download.docker.com/linux/{{ (ansible_distribution == "Fedora") | ternary("fedora","centos") }}/docker-{{ docker_edition }}.repo
+docker_yum_repo_enable_edge: "0"
+docker_yum_repo_enable_test: "0"
+docker_yum_gpg_key: https://download.docker.com/linux/centos/gpg