[Fix] nil-pointer exception when eyposing port on loadbalancer with -…

…-no-lb set (k3d-io#442)

registry: allow creating new and using existing registries

allow overriding GIT_TAG for make build target to fix publishing dock…

…er images

[FEATURE] Config File (k3d-io#351)

ci/drone: allow building from main-* and release-* branches

extended e2e tests

tests/e2e: fix grep in label assertion

update checked k3s versions

do not use host.docker.internal IP for API on non-docker-machine setu…

…ps of Docker for Desktop

Docs: Add asdf install option (k3d-io#389, @poikilotherm)

* Add asdf install option maintained by @spencergilbert