Registries¶
A registry persists metadata pertaining to DNS records.
The most important metadata is the owning external-dns deployment.
This is specified using the --txt-owner-id flag, specifying a value unique to the
deployment of external-dns and which doesn’t change for the lifetime of the deployment.
Deployments in different clusters but sharing a DNS zone need to use different owner IDs.
The registry implementation is specified using the --registry flag.
Supported registries¶
- txt (default) - Stores metadata in TXT records in the same provider.
- dynamodb - Stores metadata in an AWS DynamoDB table.
- noop - Passes metadata directly to the provider. For most providers, this means the metadata is not persisted.
- aws-sd - Stores metadata in AWS Service Discovery. Only usable with the
aws-sdprovider.
Last update:
May 28, 2023