cloud-init

wikipedia:cloud-init (man) is a package included in Ubuntu and RHEL among others that contains utilities for early initialization of cloud instances. It is needed in images that are built with the intention of being launched in cloud environments like OpenStack, AWS, Azure, Google Cloud etc.

• https://cloud-init.io/
• https://help.ubuntu.com/community/CloudInit
• Configuration file: /etc/cloud/cloud.cfg

Features

• Setting the hostname
• Setting a default locale
• Generating and setting up SSH private keys
• Setting up ephemeral mount points

Binaries

• /usr/bin/cloud-id
• /usr/bin/cloud-init
• /usr/bin/cloud-init-per

Logs

• /var/log/cloud-init.log
• /var/log/cloud-init-output.log
• /var/lib/cloud/instance/
• /var/lib/cloud/instance/user-data.txt

Examples:

• multipass launch --name ubuntu-lts-custom --cloud-init cloud-config.yaml

Activities

• Read https://wiki.archlinux.org/index.php/Cloud-init

Related terms

• growpart
• cloud-image-utils
• --cloud-init multipass
• --cloud-init virt-install
• Terraform provider: cloud-init
• final_message
• systemctl status cloud-init
• /etc/init.d/cloud-init-user-scripts
• bootcmd:
• runcmd:
• hashicorp/cloudinit
• ~/.ssh/authorized_keys

See also

• cloud-init, cloud-id, /etc/cloud/cloud.cfg, cloud-init status, user_data, /var/log/cloud-init.log
• Ubuntu, Ubuntu releases, snap, MAAS, PPA, Canonical Livepatch, Ubuntu Advantage, netplan, multipass, Landscape, Subiquity, lsb_release, Ubuntu MATE, Wayland, pro status, unminimize