sigs.k8s.io/external-dns@v0.14.1/docs/registry/registry.md (about)

     1  # Registries
     2  
     3  A registry persists metadata pertaining to DNS records.
     4  
     5  The most important metadata is the owning external-dns deployment.
     6  This is specified using the `--txt-owner-id` flag, specifying a value unique to the
     7  deployment of external-dns and which doesn't change for the lifetime of the deployment.
     8  Deployments in different clusters but sharing a DNS zone need to use different owner IDs.
     9  
    10  The registry implementation is specified using the `--registry` flag.
    11  
    12  ## Supported registries
    13  
    14  * [txt](txt.md) (default) - Stores metadata in TXT records in the same provider.
    15  * [dynamodb](dynamodb.md) - Stores metadata in an AWS DynamoDB table.
    16  * noop - Passes metadata directly to the provider. For most providers, this means the metadata is not persisted.
    17  * aws-sd - Stores metadata in AWS Service Discovery. Only usable with the `aws-sd` provider.