Comment 8 for bug 1750780

I dont think I really agree with this fix.

Adding 'After=local-fs.target' essentially pushes cloud-init to have that same dependency, which it does not have. We don't really want cloud-init to have to wait for local-fs.target.
For example see bug 1691489 (and related fallout bug 1717477).

If the only reason for local-fs.target was actually PrivateTmp, then there is a bug in systemd.

https://www.freedesktop.org/software/systemd/man/systemd.exec.html
 | Implicit Dependencies
 | Similar, units with PrivateTmp= enabled automatically get mount unit
 | dependencies for all mounts required to access /tmp and /var/tmp. They
 | will also gain an automatic After= dependency on systemd-tmpfiles-
 | setup.service(8).

 So there must have been a different read-only filesystem involved.