[FEATURE] dns for host at host.k3d.local

[blaggacao]

Scope of your request

• cluster create or cluster start

Describe the solution you'd like

→ https://minikube.sigs.k8s.io/docs/handbook/host-access/#hostminikubeinternal

Describe alternatives you've considered

I think injecting a DNS alias for the local host into the kube dns server is genious. This makes dev environments much more portable where the cluster needs to talk to a legacy host service. It might be relatively common to desire spawning a service on the host for development purpose (eg. persistent database — without the complexity). I had a concrete case where I was manually adding a Service + Endpoint object to expose the local IP address as a cluster service and it's a very, very brittle solution since any accidential selector (eg. injected by an overarching kustomize workflow throgh transformers) brakes the Service's bond to the Endpoint. I additionally stashed a local patch with my current IP address to make it run on my machine.

[bitjson]

I'm also very interested in a development workflow for accessing services running on the host (not in the cluster).

Related issue: #101

[iwilltry42]

Here's a test-release of #360 : https://github.com/rancher/k3d/releases/tag/v3.1.0-dev.0
Please give it a try and leave feedback on #360 👍