[Cloud-Init] User-Data for auto root login

cloud-init.cfg .yaml

%YAML 1.2
---
#cloud-config
disable_root: false
ssh_pwauth: True
chpasswd:
  list: |
    root:toor
  expire: False
users:
  - default
  - name: user
    groups: sudo
    shell: /bin/bash
    sudo:  ALL=(ALL) NOPASSWD:ALL
    lock_passwd: False
    plain_text_passwd: 'unlimited750'
write_files:
  - path: /etc/issue
    permissions: '0644'
    content: |
      \S
      Kernel \r on an \m 
      IPv4: \4    IPv6: \6
      
  - path: /etc/systemd/system/[email protected]/override.conf
    permissions: '0644'
    content: |
      [Service]
      Type=simple
      ExecStart=
      ExecStart=-/sbin/agetty --autologin root --noclear %I 38400 linux
runcmd:
  - [ /bin/systemctl, daemon-reload ]
...