Suspend on LID close
This article explanis how to make your laptop go to Suspend when closing the LID.
This can be done via pm-utils and acpid. Install pm-utils if it is not already.
apk add pm-utils
Create an acpid hook script called /etc/acpi/LID/00000080:
Contents of /etc/acpi/LID/00000080
#!/bin/sh
exec pm-suspend
Make the hook executable:
chmod +x /etc/acpi/LID/00000080
And that should be it. Make sure that the acpid daemon is running:
/etc/init.d/acpid start