Vagrantfile um n Boxen mit gleichem existierenden Schlüssel zu erzeugen

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :


default_box = "rockylinux/9"
default_cpus = 2
default_mem = 1024
nodes = [
 {
   ip_addr: '192.168.56.10',
   hostname: 'vagrant1',
   forwarded_ports: [{guest: 80, host: 8080},{guest: 443, host: 8443}]
 },
 {
   ip_addr: '192.168.56.11',
   hostname: 'vagrant2',
   forwarded_ports: [{guest: 80, host: 8081},{guest: 443, host: 8444}]
 }
]

# Function to check whether VM was already provisioned
def provisioned?(vm_name='default', provider='virtualbox')
  File.exist?(".vagrant/machines/#{vm_name}/#{provider}/action_provision")
end

# Function to provision SSH keys and configurations
def provision_ssh(vm, private_key_path, public_key_path)
  vm.vm.provision "file", source: private_key_path, destination: "/home/vagrant/.ssh/vagrant_private"
  public_key = File.read(public_key_path)
  vm.vm.provision :shell, :inline => <<-SHELL
    echo 'Provisioning ssh key.'
    mkdir -p /home/vagrant/.ssh
    chmod 700 /home/vagrant/.ssh
    echo '#{public_key}' > /home/vagrant/.ssh/authorized_keys
    chmod -R 600 /home/vagrant/.ssh/authorized_keys
    echo 'Host 192.168.*.*' > /home/vagrant/.ssh/config
    echo 'StrictHostKeyChecking no' >> /home/vagrant/.ssh/config
    echo 'UserKnownHostsFile /dev/null' >> /home/vagrant/.ssh/config
    chmod -R 600 /home/vagrant/.ssh/config
  SHELL
end

Vagrant.configure("2") do |config|
  nodes.each do |node|
    config.ssh.insert_key = false
    config.vm.define node[:hostname] do |node_config|
      node_config.vm.box = !node[:box].nil? ? node[:box] : default_box
      node_config.vm.network "private_network", ip: node[:ip_addr]
      node_config.vm.hostname = node[:hostname]
      if node.key?(:forwarded_ports)
        node[:forwarded_ports].each do |forwarded_port|
          node_config.vm.network "forwarded_port", guest: forwarded_port[:guest], host: forwarded_port[:host]
        end
      end
      
      if provisioned?(node[:hostname])
        node_config.ssh.private_key_path = [ "vagrant_private" ]
      else
        provision_ssh(node_config, 'vagrant_private', 'vagrant_public')
      end
    end
  end
end

Anmerkung: Schlüssel wird nach "up" provisioniert, etwaig existierende Schlüssel aus Config entfernt, Schlüssel könnte natürlich auch konfigurierbar geamcht werden.