blue-green deployments

[gid-fieldcode]

We are thinking about upgrading our Envoy Gateway using blue-green deployments, i.e. install the current version in its own namespace with the version in the namespace name, run it, then at some point install a new version in a different namespace, test it, and when ready, switch to the new version by pointing the DNS name to the new load balancer (for AWS EKS environment).

Is this supported in princible?

If yes, do you agree that we'll need to define a new GatewayClass (and point the new Gateway to the new class)? Any other pointers or caveats?

Thanks!