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Allow starting multiple VMs where the first uses the macvtap device.

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This commit is contained in:
Andreas B. Mundt 2024-02-13 20:13:38 +01:00
parent 9320f6fd67
commit d4f6d91f15
2 changed files with 131 additions and 122 deletions
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9
roles/lmn_vm/files/vm-netboot
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@ -18,7 +18,7 @@ mac="$(ip link | grep -A1 "vm-macvtap" | \
sed -nE "s%\s+link/ether ([[:xdigit:]:]{17}) .+%\1%p")"
if [[ $# -eq 0 ]] ; then
mem=$(sed -En "s/^MemTotal:\s+([0-9]+)\s+kB/\1/p" /proc/meminfo)
mem=$(sed -En "s/^MemAvailable:\s+([0-9]+)\s+kB/\1/p" /proc/meminfo)
cpu=$(sed -En "0,/^cpu cores/s/^cpu cores\s+:\s+([0-9]+)/\1/p" /proc/cpuinfo)
arg=("--memory=$((mem/2048))" "--vcpu=$((cpu/2))")
echo Set options: "${arg[@]}"
@ -45,6 +45,13 @@ case "$img" in
esac
type="ethernet,mac=${mac},target.dev=vm-macvtap,xpath1.set=./target/@managed=no"
for vm in $(virsh --connect qemu:///session list --all --name) ; do
if virsh domiflist "$vm" | grep -q "$mac" ; then
type="user"
virt-manager &
break
fi
done
## FIXME: use passt, needs more settings for correct DNS/gateway
# 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