kubespray/roles/kubernetes/preinstall/templates/resolved.conf.j2

[Resolve]
{% if dns_early is sameas true and dns_late is sameas false %}
#DNS=
{% else %}
DNS={{ ([nodelocaldns_ip] if enable_nodelocaldns else coredns_server )| list | join(' ') }}
{% endif %}
FallbackDNS={{ ( upstream_dns_servers|d([]) + nameservers|d([]) + cloud_resolver|d([])) | unique | join(' ') }}
{% if remove_default_searchdomains is sameas false or (remove_default_searchdomains is sameas true and searchdomains|default([])|length==0)%}
Domains={{ ([ 'default.svc.' + dns_domain, 'svc.' + dns_domain ] + searchdomains|default([])) | join(' ') }}
{% else %}
Domains={{ searchdomains|default([]) | join(' ') }}
{% endif %}
#LLMNR=no
#MulticastDNS=no
DNSSEC=no
Cache=no-negative
{% if ansible_os_family in ["Flatcar", "Flatcar Container Linux by Kinvolk"] %}
DNSStubListener=no
{% else %}
#DNSStubListener=yes
{% endif %}