Skaffold Compatibility

[Exagram]

Hi Rancher Community,

I have been currently using Skaffold to automate development:

• Build Docker images on file changes
• Apply images to my local Minikube server

First problem: I try to run skaffold dev but it doesn't appear to work with nerdctl/containerd:

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?. Docker build ran into internal error. Please retry.
If this keeps happening, please open an issue..

I fixed this by switching Rancher's default containerd option to Docker Engine API:

Second problem: I ran skaffold dev but got back an error:

Build Failed. No push access to specified image repository. Trying running with `--default-repo` flag.

What image repository does Rancher/K3S use? Do I need to install extra software for this?

Thanks!

[gunamata]

For the first problem, skaffold doesn't work with nerdctl. So you are correct that you switched to dockerd to use skaffold

Second problem,

The default registry is https://index.docker.io/v1/ . As you need to have push access to the image repository, you can either docker login (if you have docker hub account) before running skaffold dev or you can setup a local registry using docker run -d -p 5000:5000 --restart=always --name registry registry:2 and then run skaffold dev --default-repo=localhost:5000.

Hope this helps!

[Exagram]

Hi @gunamata, I have succeeded in your steps above. How can I configure Rancher Kubernetes to use the local registry at :5000? I'm having difficulties finding a clear answer online.

[gunamata]

As Rancher Desktop uses k3s, you can use the instructions on this page to configure private registry for your local kubernetes.

I hope this helps!