I've found a very useful script for installing alpine on a dedicated server.

It works beautifully on a IONOS server (hosted in DE), I had to wipe the
hard disks from mdraid/lvm completely to make it work.

I've also updated the script to install alpine 3.12

https://gist.github.com/thde/5312a42665c5c901aef4

FYI, the ssh-serial console in those IONOS servers is set to 57600 baud, so
set ttys0 (kernel line,inittab) accordingly.

eth0 can be set to dhcp.

You can, of course, modify the script to make a more complex install, like
raid1, zfs,luks, etc.