wip: pxe test setup still has a few kinks with serial console
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docs/pxe_test_setup.sh
Executable file
195
docs/pxe_test_setup.sh
Executable file
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#!/usr/bin/env bash
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set -euo pipefail
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# --- Configuration ---
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LAB_DIR="/var/lib/harmony_pxe_test"
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IMG_DIR="${LAB_DIR}/images"
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STATE_DIR="${LAB_DIR}/state"
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VM_OPN="opnsense-pxe"
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VM_PXE="pxe-node-1"
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NET_HARMONYLAN="harmonylan"
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# Network settings for the isolated LAN
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VLAN_CIDR="192.168.150.0/24"
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VLAN_GW="192.168.150.1"
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VLAN_MASK="255.255.255.0"
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# VM Specifications
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RAM_OPN="2048"
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VCPUS_OPN="2"
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DISK_OPN_GB="10"
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OS_VARIANT_OPN="freebsd13.1" # Using a slightly more recent variant
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RAM_PXE="4096"
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VCPUS_PXE="2"
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DISK_PXE_GB="40"
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OS_VARIANT_LINUX="centos-stream9"
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# ISO URLs and Paths
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OPN_ISO="${IMG_DIR}/OPNsense-latest.iso"
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CENTOS_ISO="${IMG_DIR}/CentOS-Stream-9-latest-boot.iso"
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OPN_URL="https://mirror.wdc1.us.leaseweb.net/opnsense/releases/25.7/OPNsense-25.7-dvd-amd64.iso.bz2"
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CENTOS_URL="https://mirror.stream.centos.org/9-stream/BaseOS/x86_64/os/images/boot.iso"
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# Libvirt connection URI for system-wide daemon
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CONNECT_URI="qemu:///system"
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# --- Helper Functions ---
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download_if_missing() {
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local url="$1"
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local dest="$2"
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if [[ ! -f "$dest" ]]; then
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echo "Downloading $url to $dest"
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mkdir -p "$(dirname "$dest")"
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local tmp
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tmp="$(mktemp)"
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curl -L --progress-bar "$url" -o "$tmp"
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case "$url" in
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*.bz2) bunzip2 -c "$tmp" > "$dest" && rm -f "$tmp" ;;
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*) mv "$tmp" "$dest" ;;
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esac
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else
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echo "Already present: $dest"
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fi
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}
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# Ensures a libvirt network is defined and active
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ensure_network() {
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local net_name="$1"
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local net_xml_path="$2"
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if virsh --connect "${CONNECT_URI}" net-info "${net_name}" >/dev/null 2>&1; then
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echo "Network ${net_name} already exists."
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else
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echo "Defining network ${net_name} from ${net_xml_path}"
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virsh --connect "${CONNECT_URI}" net-define "${net_xml_path}"
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fi
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if ! virsh --connect "${CONNECT_URI}" net-info "${net_name}" | grep "Active: *yes"; then
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echo "Starting network ${net_name}..."
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virsh --connect "${CONNECT_URI}" net-start "${net_name}"
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virsh --connect "${CONNECT_URI}" net-autostart "${net_name}"
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fi
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}
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# Destroys a VM completely
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destroy_vm() {
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local vm_name="$1"
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if virsh --connect "${CONNECT_URI}" dominfo "$vm_name" >/dev/null 2>&1; then
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echo "Destroying and undefining VM: ${vm_name}"
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virsh --connect "${CONNECT_URI}" destroy "$vm_name" || true
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virsh --connect "${CONNECT_URI}" undefine "$vm_name" --nvram
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fi
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}
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# Destroys a libvirt network
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destroy_network() {
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local net_name="$1"
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if virsh --connect "${CONNECT_URI}" net-info "$net_name" >/dev/null 2>&1; then
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echo "Destroying and undefining network: ${net_name}"
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virsh --connect "${CONNECT_URI}" net-destroy "$net_name" || true
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virsh --connect "${CONNECT_URI}" net-undefine "$net_name"
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fi
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}
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# --- Main Logic ---
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create_lab_environment() {
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# Create network definition files
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cat > "${STATE_DIR}/default.xml" <<EOF
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<network>
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<name>default</name>
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<forward mode='nat'/>
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<bridge name='virbr0' stp='on' delay='0'/>
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<ip address='192.168.122.1' netmask='255.255.255.0'>
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<dhcp>
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<range start='192.168.122.100' end='192.168.122.200'/>
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</dhcp>
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</ip>
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</network>
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EOF
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cat > "${STATE_DIR}/${NET_HARMONYLAN}.xml" <<EOF
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<network>
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<name>${NET_HARMONYLAN}</name>
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<forward mode='nat'/>
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<bridge name='virbr1' stp='on' delay='0'/>
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<ip address='${VLAN_GW}' netmask='${VLAN_MASK}'>
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</ip>
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</network>
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EOF
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# Ensure both networks exist and are active
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ensure_network "default" "${STATE_DIR}/default.xml"
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ensure_network "${NET_HARMONYLAN}" "${STATE_DIR}/${NET_HARMONYLAN}.xml"
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# --- Create OPNsense VM ---
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local disk_opn="${IMG_DIR}/${VM_OPN}.qcow2"
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if [[ ! -f "$disk_opn" ]]; then
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qemu-img create -f qcow2 "$disk_opn" "${DISK_OPN_GB}G"
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fi
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echo "Creating OPNsense VM..."
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virt-install \
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--connect "${CONNECT_URI}" \
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--name "${VM_OPN}" \
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--ram "${RAM_OPN}" \
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--vcpus "${VCPUS_OPN}" \
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--cpu host-model-only \
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--os-variant "${OS_VARIANT_OPN}" \
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--graphics none \
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--noautoconsole \
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--disk path="${disk_opn}",format=qcow2,bus=virtio \
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--cdrom "${OPN_ISO}" \
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--network network=default,model=virtio \
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--network network="${NET_HARMONYLAN}",model=virtio \
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--boot uefi
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echo "OPNsense VM created. Connect with: sudo virsh console ${VM_OPN}"
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echo "In OPNsense, assign WAN to the NIC with DHCP (default), and LAN to the ${NET_HARMONYLAN} NIC."
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echo "Set LAN IP to ${VLAN_GW}/24 and enable DHCP on LAN (e.g., ${VLAN_GW%.*}.100 - ${VLAN_GW%.*}.200)."
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# --- Create PXE Client VM ---
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local disk_pxe="${IMG_DIR}/${VM_PXE}.qcow2"
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if [[ ! -f "$disk_pxe" ]]; then
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qemu-img create -f qcow2 "$disk_pxe" "${DISK_PXE_GB}G"
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fi
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echo "Creating PXE client VM..."
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virt-install \
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--connect "${CONNECT_URI}" \
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--name "${VM_PXE}" \
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--ram "${RAM_PXE}" \
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--vcpus "${VCPUS_PXE}" \
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--cpu host-model-only \
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--os-variant "${OS_VARIANT_LINUX}" \
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--graphics none \
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--noautoconsole \
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--disk path="${disk_pxe}",format=qcow2,bus=virtio \
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--network network="${NET_HARMONYLAN}",model=virtio \
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--pxe \
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--boot uefi,menu=on
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echo "PXE VM created. It will attempt to netboot on ${NET_HARMONYLAN}."
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}
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# --- Script Entrypoint ---
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case "${1:-}" in
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up)
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mkdir -p "${IMG_DIR}" "${STATE_DIR}"
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download_if_missing "$OPN_URL" "$OPN_ISO"
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download_if_missing "$CENTOS_URL" "$CENTOS_ISO"
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create_lab_environment
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echo "Lab setup complete. Use 'sudo virsh list --all' to see VMs."
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;;
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clean)
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destroy_vm "${VM_PXE}"
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destroy_vm "${VM_OPN}"
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destroy_network "${NET_HARMONYLAN}"
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# Optionally destroy the default network if you want a full reset
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# destroy_network "default"
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echo "Cleanup complete."
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;;
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*)
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echo "Usage: sudo $0 {up|clean}"
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exit 1
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;;
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esac
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