cloud-config.yaml

#cloud-config
#
# This is an example file to automatically configure resolv.conf when the
# instance boots for the first time.
#
# Ensure that your yaml is valid and pass this as user-data when starting
# the instance. Also be sure that your cloud.cfg file includes this
# configuration module in the appropriate section.

bootcmd:
- printf "[Resolve]\nDNS=8.8.8.8" > /etc/systemd/resolved.conf
- [systemctl, restart, systemd-resolved]