How to run so script when the HOST is going to shutdown?

[why-be-banned]

Hello,

How to execute some bash script when the HOST is going to shutdown, click the shutdown button on the WEB UI, or enter "shutdown" on ssh console.

I want to hibernate all VMs instead of shutdown VMs.

 

[fabian]

you'd need to write a custom systemd unit and put it in the appropriate place in the shutdown sequence.