How can I register a resolver?

[nakabonne]

Title: How can I register a resolver?

Description:
I want to resolve names dynamically when getting EDS response.
That is, I am looking for a way to set a EDS config to use LOGICAL_DNS/STRICT_DNS.
There are multiple discussions on this subject.

• when Cluster using EDS service to fectch endpoints ,can't using DNS name in endpoint address #4290 (comment)
• Is there a way that EDS IPAddress accepts docker hostname with EDS Cluster? go-control-plane#87 (comment)

In these discussions, it is recommended to do complete CDS response.
However, my log is output as follows.

Consider setting resolver_name or setting cluster type to 'STRICT_DNS' or 'LOGICAL_DNS'

So I look up the resolver_name in the document and it is written as below.

The name of the resolver. This must have been registered with Envoy.

How can I register a resolver?

[junr03]

I think there are two parts to your question:

1. Your actual objective to resolve EDS endpoints via DNS: this is still a feature request, as also presented in when Cluster using EDS service to fectch endpoints ,can't using DNS name in endpoint address #4290. That issue was auto closed, but can be reopened. The solution that @dio suggested there is still valid. Your control plane could do CDS for clusters with DNS-resolved addresses, instead of having EDS-based clusters.
2. Your question about the resolver: Add custom resolver support for v2 Address messages #1477 has more contexts on resolvers.

[nakabonne]

Thank you for your politeness.
I thought resolver_name would solve the EDS endpoint via DNS, but it seems not to be the case.
My problem was solved. Thank you!