Advanced Cloud-Init Generator

Easily create customized cloud-config YAML for your server deployments. Automate setup, user creation, package installation, and more.

Cloud-Init Configuration

Start with a blank slate and configure everything manually.
Format each line as username|ssh-key|sudo. Sudo can be 'yes' or 'no'. If sudo is omitted, it defaults to 'no'.
If firewall rules are specified for Ubuntu/Debian, 'ufw' will be automatically added if not already listed. For Alma/Rocky, ensure 'firewalld' is included if needed.
One file per line: /absolute/path/to/file|content for the file. Use \n for newlines within content.
One command per line. Runs before package installation.
One command per line. Runs after package installation.
For Ubuntu/Debian: UFW rules (e.g., 22/tcp, http). For Alma/Rocky: Firewalld rules (e.g., http, 80/tcp) or full firewall-cmd commands in Run Commands.

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Understanding Cloud-Init

Frequently Asked Questions

Cloud-Init is the industry standard multi-distribution method for cross-platform cloud instance initialization. It is supported on most major Linux distributions and cloud platforms. It allows you to automate the initial setup of a server when it first boots.

The YAML generated by this tool is a #cloud-config file. You typically provide this configuration to your cloud provider when launching a new virtual machine. Most providers have a "user data" field where you can paste this YAML content. On the first boot, Cloud-Init on the server will read this configuration and apply the settings.

Common uses include:

  • Setting the hostname.
  • Configuring default locale and timezone.
  • Adding SSH keys for root or other users.
  • Creating new user accounts.
  • Installing software packages.
  • Writing files to the disk.
  • Running commands on first boot.

This tool generates YAML based on your input. The security of the resulting configuration depends on the data you provide (e.g., strength of SSH keys, commands you choose to run). We do not store any of your input data. Always review the generated YAML before using it on a production server. Ensure any commands or scripts you include are from trusted sources.

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