docker/defaults/main.yml

---

docker_channel: stable # one of: stable, test, edge, nightly

docker_configure_ipv6: true

#docker_auth_config:
#  auths:
#    my.registry:
#      auth: '{{ "user:pass" | b64encode }}'
docker_auth_config_user: root
docker_auth_config_homedir: /root

docker_start_opts:
- -H fd://

...