This is a fork from https://git.geco-it.net/GECO-IT-PUBLIC/fedora-coreos-proxmox.git, it has the modified as below:

• Fixed: the problem of geco-motd and qemu-ga during the setup of latest FCOS, according to this post
• Feature: additional custom config of Template VM base on the modifies of Doc-Tiebeau/proxmox-flatcar
• Feature: allow adding custom packages repo

1. Be sure to install git on your PVE server first:

   apt update
   apt install git

2. Clone this repository on your Proxmox server:

   git clone https://github.com/jimlee2002/fedora-coreos-proxmox.git

3. Get into the directory fedora-coreos-proxmox

   cd fedora-coreos-proxmox

4. Modify template_deploy.conf to custom your VM parameter as below:

   # template vm vars
   TEMPLATE_NAME="TMPLT-fcos" # Template VM name append with <flactar_version> in Proxmox GUI
   TEMPLATE_RECREATE="false" # Fore recreate template ?
   # Note: If you want only update hook script and Template_Ignition file, you can keep it as false, these files are always overwritten
   TEMPLATE_VMID="900" # VMID of Template VM
   TEMPLATE_VMSTORAGE="local-lvm" # Target storage for template VM
   SNIPPET_STORAGE="local" # Target storage for snippets files
   VMDISK_OPTIONS=",discard=on"
   
   TEMPLATE_MEMORY="4096" # Amount of RAM for the template VM in MB
   TEMPLATE_CPU_TYPE="host" # Emulated CPU type
   TEMPLATE_CPU_CORE="4" # The number of cores for template VM
   # 0-False, 1-True
   TEMPLATE_AUTOSTART="1" # Whether the VM will be automatic restart after crash
   TEMPLATE_ONBOOT="0" # Whether the VM will be started during system bootup.
   
   
   TEMPLATE_IGNITION="fcos-base-tmplt.yaml"
   
   # fcos image version
   STREAMS=stable # The stream you decide to use
   VERSION=36.20220618.3.1 # You need to bump it to the latest version manually
   PLATEFORM=qemu
   BASEURL=https://builds.coreos.fedoraproject.org
   

5. Add your custom packages repo in hook-fcos.sh as below:

   (...)
   
       echo -n "Fedora CoreOS: Adding custom packages repos..."
       pkgs_repo=(
           # Put the URL of custom packages repo here
           "https://pkgs.tailscale.com/stable/fedora/tailscale.repo"
           "https://download.docker.com/linux/fedora/docker-ce.repo"
       )
       
   (...)

6. Run the scripts to generate the template VM:

   ./vmsetup.sh

7. Check the template VM just generated in Proxmox Web GUI and clone a VM base on it.

8. BEFORE first boot: update Cloud-Init config of your new VM in Proxmox Web GUI.

   Without specifying, the default username is admin

9. Wait for multiple reboot the enjoy.

• GECO-IT-PUBLIC/fedora-coreos-proxmox
• Doc-Tiebeau/proxmox-flatcar
• Proxmox VE - Fedora CoreOS : Un mariage presque parfait / An almost perfect Union [Geco-iT Wiki]
• [TUTORIAL] - HOWTO : Wrapper Script to Use Fedora CoreOS Ignition with Proxmox cloud-init system for Docker workloads | Proxmox Support Forum