97b9ba8d97
In Linux socket paths are limited to 108 char length. /var/tmp/vm/$UID/.config will be too long in some cases. So we use /var/tmp/vm/$UID /var/tmp/vm must be - cleaned on startup - created with sticky-bit (used by different users)
78 lines
2.9 KiB
Bash
Executable file
78 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/bash
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#
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# Start a netboot VM connected to macvtap device and fraction of mem/cpus
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#
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set -eu
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## Imporant for all virsh libvirt calls:
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export XDG_CONFIG_HOME="/var/tmp/vm/${UID}"
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menu=(standard "CLI Standard Debian GNU/Linux NFS"
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standard-ram "CLI Standard Debian GNU/Linux RAM"
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kde-desktop "KDE Plasma Desktop Debian GNU/Linux NFS"
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gnome-desktop "Gnome Desktop Debian GNU/Linux NFS")
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img=$(dialog --clear --backtitle "Virtual Machine Chooser" \
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--title "Choose the Virtual Machine to Start" \
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--menu "Start VM:" 12 70 6 "${menu[@]}" 2>&1 >/dev/tty)
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## If the menu is canceled, $0 stops here because of set -e
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# FIXME: Use first device found for now:
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mac="$(ip link | grep -A1 -m1 "macvtap-" | \
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sed -nE "s%\s+link/ether ([[:xdigit:]:]{17}) .+%\1%p")"
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tapdev="$(ip link | grep -A1 -m1 "macvtap-" | sed -nE "s%^[1-9]:\s(\S+)@.*%\1%p")"
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if [[ $# -eq 0 ]] ; then
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mem=$(sed -En "s/^MemAvailable:\s+([0-9]+)\s+kB/\1/p" /proc/meminfo)
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cpu=$(sed -En "0,/^cpu cores/s/^cpu cores\s+:\s+([0-9]+)/\1/p" /proc/cpuinfo)
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arg=("--memory=$((mem/2048))" "--vcpu=$((cpu/2))")
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echo Set options: "${arg[@]}"
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else
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arg=("$@")
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fi
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kernel="http://livebox/d-i/n-live/${img%-ram}/live/vmlinuz"
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initrd="http://livebox/d-i/n-live/${img%-ram}/live/initrd.img"
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kargs=(boot=live components splash locales=de_DE.UTF-8 keyboard-layouts=de
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swap=true live-config.timezone=Europe/Berlin)
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case "$img" in
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standard*)
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arg+=(--autoconsole=text)
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kargs+=(console=ttyS0)
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;;&
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*-ram)
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kargs+=("fetch=http://10.190.1.2/d-i/n-live/${img%-ram}/live/filesystem.squashfs")
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;;
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*)
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kargs+=(netboot=nfs "nfsroot=10.190.1.2:/srv/nfs/debian-live/${img%-ram}")
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;;
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esac
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type="ethernet,mac=${mac},target.dev=${tapdev},xpath1.set=./target/@managed=no"
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n=0
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for vm in $(virsh --connect qemu:///session list --all --name) ; do
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if virsh domiflist "$vm" | grep -q "$mac" ; then
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type="user"
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virt-manager &
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fi
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if [[ "${img}$n" = "$vm" ]] ; then
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n=$((n+1))
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fi
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done
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kargs+=(hostname="${img}$n")
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## FIXME: use passt, needs more settings for correct DNS/gateway
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# type=user,xpath1.create=./backend,xpath2.set=./backend/@type=passt,xpath3.create=./ip,xpath4.set=./ip/@family=ipv4,xpath5.set=./ip/@address=172.16.1.1,xpath6.set=./ip/@prefix=24,xpath7.create=./portForward,xpath8.set=./portForward/@proto=tcp,xpath9.set=./portForward/range/@start=2001,xpath10.set=./portForward/range/@end=2500,xpath11.set=./portForward/range/@to=1
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http_proxy='' \
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exec virt-install \
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--name "${img}$n" \
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--osinfo debiantesting \
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--nodisks --import --noreboot --transient \
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--controller type=scsi,model=virtio-scsi \
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--install kernel="$kernel",initrd="$initrd",kernel_args="${kargs[*]}" \
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--network "type=$type" "${arg[@]}"
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# --filesystem "$HOME",share
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# mount -t 9p share /mnt
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