!!!!!At kell nevezni yaml-re a fajlt!!!!! Az egyenloseg jelekkel egyutt torolheto ez a resz!
=========================
#cloud-config
preserve_hostname: false
manage_etc_hosts: true

users:
  - name: feketebt
    groups: sudo
    shell: /bin/bash
    lock_passwd: false
    passwd: "$6$v4pWfv2/1rR24SDS$TE4yxcNddNZTa/N50AmN5onikC6rfG1pZS2f1aN4TzWY5X3pfhlDNENUxOxTVImakdITSA4la8r3zW/Y8HB5S/"
    ssh_authorized_keys:
      - ssh-rsa AAAAB3...
      - ssh-dss AAAAB3...
      - ssh-ed25519 AAAA...

package_update: true
package_upgrade: true
package_reboot_if_required: true

locale: hu_HU.UTF-8
timezone: Europe/Budapest

keyboard:
  layout: hu
  variant: nodeadkeys
  model: pc105

packages:
  - qemu-guest-agent

runcmd:
  - sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication no/' /etc/ssh/sshd_config
  - sed -i 's/^#\?ChallengeResponseAuthentication.*/ChallengeResponseAuthentication no/' /etc/ssh/sshd_config
  - systemctl reload ssh
  - systemctl enable qemu-guest-agent
  - systemctl start qemu-guest-agent