Comment 11 for bug 1906829

cloud-init runs when it's supposed to run; it has 4 stages[1].

What units don't wait for cloud-init?

In case you're creating scripts or units then:

Scripts can use:

cloud-init status --wait

Systemd Units can use:

After=cloud-init.target

This will ensure they don't run until after cloud-init is complete.

1. https://cloudinit.readthedocs.io/en/latest/topics/boot.html