example of creating an openbsd 6.6 virtual machine with virt-install / kvm

make-openbsd-virt

#!/bin/bash

OWNER=libvirt-qemu:libvirtd
RELEASE=https://cloudflare.cdn.openbsd.org/pub/OpenBSD/6.6/amd64

function sudo {
    command sudo -p "Please enter password for %u@%h to fiddle with virtual machines: " ls /dev/null >/dev/null
    command sudo "$@"
}

function get {
    sudo wget "$1"
}

function download {
    cd /var/lib/libvirt/boot/
    sudo mkdir -p openbsd66
    cd openbsd66

    get $RELEASE/SHA256
    get $RELEASE/SHA256.sig

    for file in $(sudo egrep -o '(\(.*\))' SHA256 | tr -d '()'); do
        get $RELEASE/$file
        sudo chown $OWNER $file
    done

    signify-openbsd -C SHA256.sig
}

function install {
    sudo virt-install \
        --name=openbsd66 \
        --virt-type=kvm \
        --memory=1024,maxmemory=1024 \
        --vcpus=1,maxvcpus=1 \
        --cpu host \
        --os-variant=openbsd6.3 \
        --cdrom=/var/lib/libvirt/boot/openbsd66/install66.iso \
        --network=bridge=lxcbr0,model=virtio,mac=52:54:00:0b:5d:66 \
        --boot menu=on,useserial=on \
        --graphics=none \
        --console pty,target_type=virtio \
        --serial pty \
        --disk path=/var/lib/libvirt/images/openbsd.qcow2,size=10,bus=virtio,format=qcow2

    # most of the input, give or take

    # set tty com0
    # boot
    # I
    # \n
    # openbsd66
    # vio0
    # 10.0.1.66
    # 255.255.255.0
    # none
    # done
    # 10.0.1.1
    # v.evq.io
    # 10.0.1.1
    # root
    # root
    # yes
    # yes
    # 115200
    # username
    # password
    # password
    # no
    # \n
    # sd0
    # w
    # a
    # \n
    # \n
    # done
    # yes
    # done
    # r    
}

function delete {
    sudo virsh destroy openbsd66
    sudo virsh undefine openbsd66
}

case $1 in
    download) download ;;
    install)  install ;;
    delete)   delete ;;
esac