How to mount /tmp as tmpfs in Alpine Linux?

[VinceHillier (Vince)]

@Maniaxx

/etc/fstab entries are not accepted either even though a manual mount does work:
tmpfs /tmp tmpfs nodev,nosuid,size=8G 0 0

Try this in /etc/fstab:

/tmp /tmp tmpfs defaults,size=8G 0 0