+ domain: {% if 'dns' in yaml.networks.host and 'domain' in yaml.networks.host.dns %}{{yaml.networks.host.dns.domain}}
+ {% else %}{{yaml.dns.domain}}
+ {% endif %}
+ servers: '{% if 'dns' in yaml.networks.host %}{{yaml.networks.host.dns.servers}}{% else %}{{yaml.dns.upstream_servers|join(' ')}}{% endif %}'