# cloud-init [![Build Status](https://travis-ci.com/canonical/cloud-init.svg?branch=main)](https://travis-ci.com/canonical/cloud-init) [![Read the Docs](https://readthedocs.org/projects/cloudinit/badge/?version=latest&style=flat)](https://cloudinit.readthedocs.org) Cloud-init is the *industry standard* multi-distribution method for cross-platform cloud instance initialization. It is supported across all major public cloud providers, provisioning systems for private cloud infrastructure, and bare-metal installations. Cloud instances are initialized from a disk image and instance data: - Cloud metadata - User data (optional) - Vendor data (optional) Cloud-init will identify the cloud it is running on during boot, read any provided metadata from the cloud and initialize the system accordingly. This may involve setting up network and storage devices to configuring SSH access key and many other aspects of a system. Later on cloud-init will also parse and process any optional user or vendor data that was passed to the instance. ## Getting help If you need support, start with the [user documentation](https://cloudinit.readthedocs.io/en/latest/). If you need additional help consider reaching out with one of the following options: - Ask a question in the [``#cloud-init`` IRC channel on Libera](https://kiwiirc.com/nextclient/irc.libera.chat/cloud-init) - Search the cloud-init [mailing list archive](https://lists.launchpad.net/cloud-init/) - Better yet, join the [cloud-init mailing list](https://launchpad.net/~cloud-init) and participate - Find a bug? [Report bugs on Launchpad](https://bugs.launchpad.net/cloud-init/+filebug) ## Distribution and cloud support Below are a list of the many OSes and clouds that contain and ship with cloud-init. If your distribution or cloud is not listed or does not have a recent version of cloud-init, please get in contact with that distribution and send them our way! | Supported OSes | Supported Public Clouds | Supported Private Clouds | | --- | --- | --- | | Alpine Linux
ArchLinux
Debian
DragonFlyBSD
Fedora
FreeBSD
Gentoo Linux
NetBSD
OpenBSD
RHEL/CentOS/AlmaLinux/Rocky/PhotonOS/Virtuozzo/EuroLinux
SLES/openSUSE
Ubuntu










| Amazon Web Services
Microsoft Azure
Google Cloud Platform
Oracle Cloud Infrastructure
Softlayer
Rackspace Public Cloud
IBM Cloud
DigitalOcean
Bigstep
Hetzner
Joyent
CloudSigma
Alibaba Cloud
OVH
OpenNebula
Exoscale
Scaleway
CloudStack
AltCloud
SmartOS
HyperOne
Vultr
Rootbox
| Bare metal installs
OpenStack
LXD
KVM
Metal-as-a-Service (MAAS)
VMware















| ## To start developing cloud-init Checkout the [hacking](https://cloudinit.readthedocs.io/en/latest/topics/hacking.html) document that outlines the steps necessary to develop, test, and submit code. ## Daily builds Daily builds are useful if you want to try the latest upstream code for the latest features or to verify bug fixes. For Ubuntu, see the [Daily PPAs](https://code.launchpad.net/~cloud-init-dev/+archive/ubuntu/daily) For CentOS, see the [COPR build repos](https://copr.fedorainfracloud.org/coprs/g/cloud-init/cloud-init-dev/)