Support for nerdctl & local cluster check for rancher-desktop

[Kampe]

Issue

rancher-desktop has become a very popular and simple to use desktop development client for developers to adopt, it would be very convenient if it were also a first class citizen for skaffold tooling!

Expected behavior

https://skaffold.dev/docs/environment/local-cluster/

performs the same as minikube or docker-desktop

Actual behavior

builds and deploys fail due to registry authentication issues and must be countered with esoteric dockerCLI configuration as nerdctl is not yet supported.

Information

build:
  local:
    push: false
    useDockerCLI: true

[tejal29]

This is not currently a high priority for team. Happy to see community contributions!

[errordeveloper]

It looks like scaffold is really married to Docker, and there is no quick way to change the code without some significant refactoring. My work-around to this is to run run Docker in a container ;)

nerdctl run --privileged --name dind -d -v /var/run/dind:/var/run docker:dind

and then DOCKER_HOST=unix:///var/run/dind/docker.sock skaffold build

There are probably ways to improve it, and e.g. mount containerd socket into the dockerd container, but the above works to unblock using skaffold.