Comment 8 for bug 1633453

It's totally possible to fix things in the tools, but you have to fix in all provisioning tools. My use case is first boot and is not about user scripts, but proper configuration of SSH and SSH keys.

Looking a bit more, I see there is a Before=sshd.service for cloud-init.service, so sshd should not be started while cloud-init is still running. However, in my case, this is cloud-config.service that finish setting SSH stuff (and restart ssh). I am not familiar with the different steps. Shouldn't cloud-config.service delays SSH start too?