Cluster api os image

This repository contains the code to build the bootc based(fedora/centos stream) image for the use with cluster api.

How to build the image

To build the image, you need to have the following tools installed on your machine:

• make
• podman
• buildah
• go (optional, only if you then want to upload the image to Hetzner Cloud)

###To build the image, run the following command:

make sure your git is clean & that you have a tag, if you don't have any tag the image version will have a dev- prefix, if you have a tag, but made changes, the image will have a version will have a -dirty suffix

1. cp creds.mk.example creds.mk

edit creds.mk to include your repository credentials & optional Hetzner Cloud token

2. make build push

note: to build a CentOS Stream image(broken currently) set OS_VARIANT=centos make ...

3a. make build-qcow2 to build a qcow2 image

3b. make build-raw to build a raw image

You will now find your image in the output directory.(qcow2 or image, depending on the variant you built)

4. make hcloud-upload to upload the image to Hetzner Cloud(optional)

What's in the image

The image is based on the bootc image

• kubernetes specific modifications, see the os directory
• cloud-init
• cri-o
• kubeadm & friends (version is set in the version.mk file) and is exposed as environment variable/label/part of container tag
• default user: capi