Zarf fails to find the k3s it installed when running zarf from cloud-init

[eikesauer]

Environment

Device and OS: Debian Bookworm (custom installer)
App version: Zarf v0.35.0
Kubernetes distro being used: zarf's own k3s

Steps to reproduce

We're creating a custom Debian installer with simple-cdd, include cloud-init (via deb), zarf, and the zarf-init-package and make cloud-init run "zarf init --components k3s --confirm --no-color --no-progress".

Expected result

k3s and the zarf stuff are installed, just as when I install them manually from the command line after a "pure" installation (which does work).

Actual Result

Zarf does install k3s, but fails to connect with the message "invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable". Accordingly, k8s is running but does not contain the zarf data.

Visual Proof (screenshots, videos, text, etc)

Severity/Priority

Additional Context

• We found a workaround. Setting KUBECONFIG=/etc/rancher/k3s/k3s.yaml makes the installation work.
• There's a similar report about terraform and kubernetes: Kubernetes cluster unreachable: invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable terraform-aws-modules/terraform-aws-eks#1234