For the record, below is the input to cloudinit. Not that it matters, but for reference the underlying platform is Proxmox,so the below is merely a copy/paste from "qm cloudinit dump $vm_id network":
version: 1 config: - type: physical name: eth0 mac_address: 'ff:ff:ff:ff:ff:ff' subnets: - type: static address: '192.0.2.60' netmask: '255.255.255.0' gateway: '192.0.2.62' - type: static6 address: '2001:db8:aaa:bbb::ccc/64' gateway: '2001:db8:aaa:bbb::ddd - type: nameserver address: - '127.0.0.1' Also for the record, my /etc/cloud/cloud.cfg: disable_root: true preserve_hostname: false apt: preserve_sources_list: true cloud_init_modules: - set_hostname - update_hostname - update_etc_hosts cloud_config_modules: - runcmd cloud_final_modules: - package-update-upgrade-install - write-files-deferred - power-state-change system_info: distro: debian paths: cloud_dir: /var/lib/cloud/ templates_dir: /etc/cloud/templates/ package_mirrors: - arches: [default] failsafe: primary: https://deb.debian.org/debian security: https://deb.debian.org/debian-security ssh_svcname: ssh network: renderers: - networkd activators: - networkd