This directory contains sources for building the kind base "node" image.

The image can be built with make quick.

This image needs to do a number of unusual things to support running systemd, nested containers, and Kubernetes. All of what we do and why we do it is documented inline in the Dockerfile.

If you make any changes to this image, please continue to document exactly why we do what we do, citing upstream documentation where possible.

See also pkg/cluster for logic that interacts with this image.

Kind frequently picks up new releases of dependent projects including containerd, runc, cni, and crictl. If you choose to use the provided Dockerfile but use build arguments to specify a different base image or application version for dependencies, be aware that you may possibly encounter bugs and undesired behavior.

See base-image for more design details.