cloud-config

#cloud-config
# Customize as per your need. At least change username and ssh-ed22519 
# key with your actual public key
 
# Hostname management
preserve_hostname: False
hostname: vm-rhel8
fqdn: vm-rhel8.sample.com
 
# Setup Users with ssh keys so that I can log in into new machine
users:
    - default
    - name: sampleuser
      groups: ['wheel']
      shell: /bin/bash
      sudo: ALL=(ALL) NOPASSWD:ALL
      ssh-authorized-keys:
        - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG+zTQJ5sdf4w3sa4tsggdsaQUbMq3jt19HflOtAy1EPBmKw KVM VM Lab SSH Login key for user
 
# Configure where output will go
output:
  all: ">> /var/log/cloud-init.log"
 
# configure interaction with ssh server
ssh_genkeytypes: ['ed25519', 'rsa']
 
# Install your public ssh key to the first user-defined user configured
# in cloud.cfg in the template (optional since I created sampleuser)
ssh_authorized_keys:
  - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG+zTQJ5sdf4w3sa4tsggdsaQUbMq3jt19HflOtAy1EPBmKw KVM VM Lab SSH Login key for user
 
# set timezone for VM
timezone: Europe/Czechia
 
# Remove cloud-init 
runcmd:
  - systemctl stop network && systemctl start network
  - yum -y remove cloud-init