Cleanup and improvements

2025-11-07 21:15:29 +01:00
parent 6cb1c7d48b
commit 8c53b59671
22 changed files with 263 additions and 151 deletions
--- a/tools/vm
+++ b/tools/vm
@@ -0,0 +1,154 @@
+#!/usr/bin/env bash
+set -euo pipefail
+ROOT=$(git rev-parse --show-toplevel)
+
+VM_NAME="talos-vm"
+VCPUS="2"
+RAM_MB="2048"
+DISK_GB="10"
+NETWORK=talos
+CONNECTION="qemu:///system"
+
+function define_network() {
+	config_file=$(mktemp)
+	cat > ${config_file} << EOF
+<network>
+	<name>${NETWORK}</name>
+	<bridge name="talos0" stp="on" delay="0"/>
+	<forward mode='nat'>
+		<nat/>
+	</forward>
+	<ip address="192.168.1.1" netmask="255.255.255.0">
+		<dhcp>
+			<range start="192.168.1.2" end="192.168.1.254"/>
+			<bootp file='ipxe.pxe'/>
+		</dhcp>
+	</ip>
+</network>
+EOF
+
+	function cleanup() {
+		rm ${config_file}
+	}
+	trap cleanup EXIT
+
+	if [[ $(virsh --connect="${CONNECTION}" net-list --all | grep -c "${NETWORK}") == "0" ]]; then
+		virsh --connect="${CONNECTION}" net-define "${config_file}"
+		virsh --connect="${CONNECTION}" net-start "${NETWORK}"
+		virsh --connect="${CONNECTION}" net-autostart "${NETWORK}"
+	fi
+
+	trap - EXIT
+	cleanup
+}
+
+
+function create() {
+	define_network
+
+	if [[ $(virsh --connect="${CONNECTION}" list --all | grep -c "${VM_NAME}") == "0" ]]; then
+		virt-install --connect="${CONNECTION}" --name="${VM_NAME}" --vcpus="${VCPUS}" --memory="${RAM_MB}" \
+			--os-variant="linux2022" \
+			--disk="size=${DISK_GB}" \
+			--pxe \
+			--sysinfo system.serial=${VM_NAME} \
+			--network network="${NETWORK}"
+	else
+		echo -n "VM already exists, start it with:
+	${0} start
+"
+		exit -1
+	fi
+}
+
+function start() {
+	if [[ $(virsh --connect="${CONNECTION}" list --all | grep -c "${VM_NAME}") > "0" ]]; then
+		virsh --connect="${CONNECTION}" start ${VM_NAME}
+		virt-viewer --connect="${CONNECTION}" ${VM_NAME}
+	else
+		echo -n "VM doest not exists yet, create it with:
+	${0} create
+"
+		exit -1
+	fi
+}
+
+function connect() {
+	if [[ $(virsh --connect="${CONNECTION}" list | grep -c "${VM_NAME}") > "0" ]]; then
+		virt-viewer --connect="${CONNECTION}" ${VM_NAME}
+	else
+		echo "VM is not running"
+		exit -1
+	fi
+}
+
+function stop() {
+	if [[ $(virsh --connect="${CONNECTION}" list | grep -c "${VM_NAME}") > "0" ]]; then
+		virsh --connect="${CONNECTION}" shutdown ${VM_NAME}
+		WAIT=240
+		for i in $(seq 0 1 ${WAIT}); do
+			echo -en "\rWaiting for VM to shutdown... (${i}/${WAIT})"
+
+			if [[ $(virsh --connect="${CONNECTION}" list | grep -c "${VM_NAME}") == "0" ]]; then
+				echo -e "\nVM successfully shutdown"
+				exit
+			fi
+
+			sleep 1
+		done
+
+		echo -e "\nDestroying VM"
+		virsh --connect="${CONNECTION}" destroy ${VM_NAME}
+	else
+		echo "VM is not running"
+		exit -1
+	fi
+}
+
+function delete() {
+	if [[ $(virsh --connect="${CONNECTION}" list --all | grep -c "${VM_NAME}") > "0" ]]; then
+		if [[ $(virsh --connect="${CONNECTION}" list | grep -c "${VM_NAME}") > "0" ]]; then
+			virsh --connect="${CONNECTION}" destroy "${VM_NAME}"
+		fi
+		virsh --connect="${CONNECTION}" undefine "${VM_NAME}" --remove-all-storage
+	else
+		echo "VM doest not exists"
+		exit -1
+	fi
+
+	if [[ $(virsh --connect="${CONNECTION}" net-list --all | grep -c "${NETWORK}") > "0" ]]; then
+		virsh --connect="${CONNECTION}" net-destroy "${NETWORK}"
+		virsh --connect="${CONNECTION}" net-undefine "${NETWORK}"
+	fi
+}
+
+function help() {
+	echo -n "Available commands:
+	start
+	stop
+	remove
+	connect
+"
+}
+
+COMMAND=${1:-}
+case ${COMMAND} in
+	create)
+		create			Create the vm and perform first install
+		;;
+	start)
+		start			Start the vm
+		;;
+	stop)
+		stop			Stop the vm
+		;;
+	delete)
+		delete			Delete the vm
+		;;
+	connect)
+		connect			Connect to an already running vm
+		;;
+	*)
+		help
+		;;
+esac