CoreOS Dev Butane Config

coreos-butane-dev.yaml

variant: fcos
version: 1.3.0
passwd:
  users:
    - name: core
      password_hash: PASSWORD_PLACEHOLDER
    - name: root
      groups:
        - docker
        - wheel
      password_hash: PASSWORD_PLACEHOLDER
storage:
  files:
    - path: /etc/ssh/sshd_config.d/20-enable-passwords.conf
      mode: 0644
      contents:
        inline: |
          PasswordAuthentication yes
    - path: /etc/NetworkManager/system-connections/ens2.nmconnection
      mode: 0600
      contents:
        inline: |
          [connection]
          id=ens2
          type=ethernet
          interface-name=ens2
          [ipv4]
          address1=10.0.3.100/24,10.0.3.1
          dns=10.0.3.1;
          dns-search=
          may-fail=false
          method=manual
    - path: /etc/sysctl.d/20-silence-audit.conf
      mode: 0644      
      contents:
        inline: |
          kernel.printk=4
    - path: /etc/profile.d/systemd-pager.sh
      mode: 0644
      contents:
        inline: |
          # Tell systemd to not use a pager when printing information
          export SYSTEMD_PAGER=cat
    - path: /etc/hostname
      mode: 0644
      contents:
        inline: |
          docker-base
    - path: /etc/hosts
      mode: 0644
      contents:
        inline: |
          127.0.0.1     localhost
          ::1           localhost ip6-localhost ip6-loopback
          ff02::1       ip6-allnodes
          ff02::2       ip6-allrouters
          10.0.3.100    docker-base

install.sh

# NOTE: This installation is not suited for production
# It was written to make coreos installations easier on my homelab

exit 0;

nmcli
curl -fsSLO <coreos-butane-dev.yaml RAW URL>
sed -i "s@PASSWORD_PLACEHOLDER@$(openssl passwd -1)@g" coreos-butane-dev.yaml
vi coreos-butane-dev.yaml
sudo docker run -i --rm quay.io/coreos/butane:release --strict < coreos-butane-dev.yaml > coreos-dev.ign

# INSTALL
sudo coreos-installer install /dev/sda --ignition-file coreos-dev.ign

post-install.sh

#!/bin/bash
sudo rpm-ostree install docker-compose

proxmox-post-clone.sh

#!/bin/bash
# Set the hostname from the first param

oldhost=$(cat /etc/hostname)
newhost=$1
newhostid=$2

if [ -z "$1" ]
  then
    echo "New hostname: "
    read newhost
fi

if [ -z "$2" ]
  then
    echo "New host id: "
    read newhostid
fi

sudo sed -i "s/$oldhost//g" /etc/hosts
sudo sed -i "s/localhost/$newhost localhost/g" /etc/hosts
sudo sed -i "s/$oldhost/$newhost/g" /etc/hostname

sudo sed -i "s/10.0.3.100/10.0.3.$newhostid/g" /etc/NetworkManager/system-connections/ens2.nmconnection

read -s -n 1 p "Press any key to reboot"
sudo reboot