Embed Core OS installation to iPXE

coreos_embedded_ipxe.sh

#!/bin/bash

download_folder="ipxe"
install_script_url="https://gist.githubusercontent.com/UnconventionalMindset/f4ca2d66b943f916b5fecfad698b47ea/raw"

full_path="$HOME/${download_folder}"

[ -z $full_path ] && { echo "Error: download path is empty"; exit 1; } || echo "Download path set to: ${full_path}, continuing..."

apt -y install gcc binutils make perl liblzma-dev mtools genisoimage syslinux isolinux

rm -f $HOME/coreos-install.ipxe
rm -rf ${full_path}/
rm -f /var/lib/vz/template/iso/coreos-ipxe.iso

git clone https://git.ipxe.org/ipxe.git $full_path

cd ${full_path}/src

curl $install_script_url -o $HOME/coreos-install.ipxe

sed -i 's/#undef[[:space:]]*\(DOWNLOAD_PROTO_HTTPS\)/#define \1/' config/general.h

make bin/ipxe.iso EMBED=$HOME/coreos-install.ipxe

mv bin/ipxe.iso /var/lib/vz/template/iso/coreos-ipxe.iso

rm -f $HOME/coreos-install.ipxe
rm -rf ${full_path}/

Running this script (almost) automatically provision my Fedora Core OS VM in proxmox:

1. Embeds coreos-install.ipxe script and builds an iPXE ISO.
2. (Only Manual step, to be made automatic with Terraform) Create a VM in proxmox that boots the iPXE
3. The iPXE gets an IP and download the core OS installer ISO
4. iPXE starts the core OS installer ISO passing my ignition
5. The installer installs core OS with my ignition config to be applied at first boot.