---
#-----------------------------------------------------------------
# DOCKER
#-----------------------------------------------------------------
docker_enabled: false             # enable docker on this node?
docker_data: /data/docker         # docker data directory, /data/docker by default
docker_storage_driver: overlay2   # docker storage driver, can be zfs, btrfs
docker_cgroups_driver: systemd    # docker cgroup fs driver: cgroupfs,systemd
docker_registry_mirrors: []       # docker registry mirror list
docker_exporter_port: 9323        # docker metrics exporter port, 9323 by default
docker_image: []                  # docker image to be pulled after bootstrap
docker_image_cache: /tmp/docker/*.tgz # docker image cache glob pattern

#-----------------------------------------------------------------
# NODE_ADMIN (Reference)
#-----------------------------------------------------------------
node_admin_username: dba          # name of this admin user, dba by default
...