Instalace serveru Gentoo Linux ve virtuálním stroji 1

qemu-image create -f qcow2 /home/vm/vm1/vm1.qcow2 20G (1)

#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
extra_commands="zaloha"
CISLO="01"                                                      (1)
NAME="vm$CISLO"                                                 (2)
MEMORY="2048M"                                                  (3)
CORES=2                                                         (4)
VIRTDISK="/home/vm/${NAME}/${NAME}.qcow2"                       (5)
ZALDISK="/mnt/backup/vm"                                        (6)
ZALOHA="${ZALDISK}/${NAME}/${NAME}.qcow2"                       (7)
ISOIMG="/home/vm/iso/finnix-125.iso"                            (8)
pidfile="/run/kvm-${NAME}.pid"
PORT=59$CISLO                                                   (9)
MAC="00:25:2d:36:e6:$CISLO"                                     (10)
NETDEV="mp$CISLO"                                               (11)
BR="br0"                                                        (12)
TAP="tap$CISLO"                                                 (13)
CHANNEL=$CISLO                                                  (14)
SECRET="/etc/qemu/spice${CISLO}"                                (15)

depend() {
	use logger clock hostname net
}

start() {                                                       (16)
	ebegin "Starting ${SVCNAME}"
	mkdir -p /run/kvm-${NAME}
	qemu-system-x86_64 -enable-kvm \
			-name ${NAME} \
			-smp cores=${CORES} \
			-cpu host \
			-m ${MEMORY} \
			-drive driver=qcow2,file=${VIRTDISK},if=virtio \
			-cdrom ${ISOIMG} \
			-device virtio-net,netdev=${NETDEV},mac=${MAC} \
			-netdev tap,id=${NETDEV},ifname=${TAP},br=${BR} \
			-boot order=c \
			-object secret,id="spice${CISLO}",file=${SECRET} \
			-vga qxl -device virtio-serial-pci -spice port=${PORT},password-secret="spice${CISLO}" \
			-device virtserialport,chardev=spicechannel${CHANNEL},name=com.redhat.spice.${CHANNEL} -chardev spicevmc,id=spicechannel${CHANNEL},name=vdagent \
			-monitor unix:/run/kvm-${NAME}/monitor,server,nowait \
			-object rng-random,id=rng${CHANNEL},filename=/dev/urandom -device virtio-rng-pci,rng=rng${CHANNEL} \
			-daemonize \
			-pidfile ${pidfile}
	eend $?
}

stop() {                                                        (17)
	ebegin "Stopping ${SVCNAME}"
	echo system_powerdown | socat - UNIX-CONNECT:/run/kvm-${NAME}/monitor
	sleep 10
	start-stop-daemon --stop --pidfile ${pidfile}
	ret=$?
	eend ${ret}
}

zaloha() {                                                      (18)
	stop
	ebegin "Zalohuji ${SVCNAME}"
	mkdir -p $ZALDISK/${NAME}
	mv $ZALOHA.xz $ZALOHA.xz.old
	cat $VIRTDISK | xz > $ZALOHA.xz
	eend $?
	start
}