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libvirt-guests-delayed

Autostart libvirt guests at boot with a delay.

Installation via PPA for Ubuntu

  • Add ppa to your system and install package

    sudo add-apt-repository ppa:sgallet/libvirt-guests-delayed

    sudo apt update

    sudo apt install libvirt-guests-delayed

And use it

Installation for Debian/Ubuntu

  • Copy guests_delayed.py to /usr/lib/libvirt

  • Make it executable

  • Copy libvirt-guests-delayed.service to /etc/systemd/system

  • Enable it to start it at boot

    systemctl enable libvirt-guests-delayed.service

And use it

Use it

  • Create or update the configuration file in /etc/libvirt/guests_delayed.conf

    guest1 800
    guest2 500
    guest3 120

  • Remove autostart in the configuration of guests you want to delay

    virsh autostart guest1 --disable
    virsh autostart guest2 --disable
    virsh autostart guest3 --disable

  • Reboot your host to try it

  • Check status after restarting

    systemctl status libvirt-guests-delayed

    ● libvirt-guests-delayed.service - Running libvirt delayed Guests

    Loaded: loaded (/etc/systemd/system/libvirt-guests-delayed.service; enabled; vendor preset: enabled)
    Active: active (exited) since Thu 2024-08-01 23:27:59 CEST; 16min ago
    Process: 70440 ExecStart=/usr/lib/libvirt/guests_delayed.py (code=exited, status=0/SUCCESS)
    Main PID: 70440 (code=exited, status=0/SUCCESS)


    août 01 23:27:59 xxxxxxxx systemd[1]: Started Running libvirt delayed Guests.
    août 01 23:27:59 xxxxxxxx guests_delayed[70440]: Found configuration : [['guest1', '800'], ['guest2', '500'], ['guest3', '120']]
    août 01 23:27:59 xxxxxxxx guests_delayed[70440]: Found inactive guests : ['guest1', 'guest2', 'guest3', 'guest4']
    août 01 23:27:59 xxxxxxxx guests_delayed[70440]: Schedule start of guest1 in 800 seconds
    août 01 23:27:59 xxxxxxxx guests_delayed[70440]: Schedule start of guest2 in 500 seconds
    août 01 23:27:59 xxxxxxxx guests_delayed[70440]: Schedule start of guest3 in 120 seconds
    août 01 23:29:59 xxxxxxxx guests_delayed[70440]: Start guest guest3
    août 01 23:32:59 xxxxxxxx guests_delayed[70440]: Start guest guest2
    août 01 23:41:19 xxxxxxxx guests_delayed[70440]: Start guest guest1
    août 01 23:41:21 xxxxxxxx guests_delayed[70440]: All delayed guests started

  • If something went wrong when starting guests, unit will enter in fail mode

  • If you want to stop startup process of guests, stop the service

    systemctl stop libvirt-guests-delayed

Others linux

You need to update the paths in script and systemd service according to your distribution