Import User Data to Linux VMs

Before importing User Data, ensure the VM image has cloud-init installed. Recommended version: 0.7.9, 17.1, 19.4, or later version.
When setting hostname and SSH password via User Data, avoid configuring these parameters again on the platform to prevent conflicts.
For Linux VMs created from images with pre-installed cloud-init, you must import User Data. Otherwise, cloud-init task will wait until timeout.

Prepare the User Data script for your desired functionality.

Example script:

#cloud-config
users:
 - name: test
   shell: /bin/bash
   groups: users
   sudo: ['ALL=(ALL) NOPASSWD:ALL']
   ssh-authorized-keys:
       - ssh-rsa AAAAB3NzaC1LXCJfjroD1lT root@10-0-0-18
bootcmd:
 - mkdir /tmp/temp 
write_files:
 - path: /tmp/Cloud_config
   content: |
       Hello,world!
   permissions: '0755'
fqdn: Perf-test
disable_root: false
ssh_pwauth: yes
chpasswd:
  list: |
      root:word
  expire: False
runcmd:
 - echo ls -l / >/root/list.sh

This example script performs the following actions:

Create user "test" with SSH Key authentication during VM creation.
Write to /etc/hosts, create directory /tmp/temp, and generate files with specified content during boot.
Set hostname, enable root user, allow SSH password authentication, and change root password.
Run the echo ls -l / command.

In the navigation pane, choose Inventory.
In the inventory, right-click a cluster, host, or image, then select New Virtual Machine
In the New Virtual Machine dialog, select Advanced Settings > General Options.
Paste your script into the User Data input field.
Complete the VM creation process to import the User Data.