COREDNS-CLOUDDNS(7) CoreDNS Plugins COREDNS-CLOUDDNS(7) NAME clouddns - enables serving zone data from GCP Cloud DNS. DESCRIPTION The clouddns plugin is useful for serving zones from resource record sets in GCP Cloud DNS. This plugin supports all Google Cloud DNS records <https://cloud.google.com/dns/docs/overview#supported_dns_record_types>. This plugin can be used when CoreDNS is deployed on GCP or elsewhere. Note that this plugin accesses the resource records through the Google Cloud API. For records in a privately hosted zone, it is not necessary to place CoreDNS and this plugin in the associated VPC network. In fact the private hosted zone could be created without any associated VPC and this plugin could still access the resource records under the hosted zone. SYNTAX clouddns [ZONE:PROJECT_ID:HOSTED_ZONE_NAME...] { credentials [FILENAME] fallthrough [ZONES...] } * ZONE the name of the domain to be accessed. When there are multiple zones with overlapping domains (private vs. public hosted zone), CoreDNS does the lookup in the given order here. Therefore, for a non- existing resource record, SOA response will be from the rightmost zone. * PROJECT_ID the project ID of the Google Cloud project. * HOSTED_ZONE_NAME the name of the hosted zone that contains the resource record sets to be accessed. * credentials is used for reading the credential file from FILENAME (nor- mally a .json file). This field is optional. If this field is not pro- vided then authentication will be done automatically, e.g., through en- vironmental variable GOOGLE_APPLICATION_CREDENTIALS. Note that CoreDNS validates that the given file has a valid credentials type, but does not validate the credentials file for malicious input. Please see Google Cloud's authentication method <https://cloud.google.com/docs/au- thentication> and validating credential configurations from external sources <https://docs.cloud.google.com/docs/authentication/client-li- braries#external-credentials> for more details. * fallthrough If zone matches and no record can be generated, pass re- quest to the next plugin. If [ZONES...] is omitted, then fallthrough happens for all zones for which the plugin is authoritative. If spe- cific zones are listed (for example in-addr.arpa and ip6.arpa), then only queries for those zones will be subject to fallthrough. EXAMPLES Enable clouddns with implicit GCP credentials and resolve CNAMEs via 10.0.0.1: example.org { clouddns example.org.:gcp-example-project:example-zone forward . 10.0.0.1 } Enable clouddns with fallthrough: example.org { clouddns example.org.:gcp-example-project:example-zone example.com.:gcp-example-project:example-zone-2 { fallthrough example.gov. } } Enable clouddns with multiple hosted zones with the same domain: . { clouddns example.org.:gcp-example-project:example-zone example.com.:gcp-example-project:other-example-zone } CoreDNS March 2026 COREDNS-CLOUDDNS(7)
NAME | DESCRIPTION | SYNTAX | EXAMPLES
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