Delete network on shutdown

Delete network on shutdown
This commit is contained in:
Kroese 2023-07-04 18:56:18 +02:00 committed by GitHub
commit f0e5a61e73
4 changed files with 37 additions and 5 deletions

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@ -47,7 +47,7 @@ if [ -f "${DATA}" ]; then
REQ=$((DATA_SIZE-OLD_SIZE))
# Check free diskspace
# Check free diskspace
SPACE=$(df --output=avail -B 1 "${STORAGE}" | tail -n 1)
if (( REQ > SPACE )); then

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@ -31,7 +31,10 @@ configureDHCP() {
error "and that the NET_ADMIN capability has been added to the container config: --cap-add NET_ADMIN" && exit 16
fi
ip link set "${VM_NET_TAP}" up
while ! ip link set "${VM_NET_TAP}" up; do
info "Waiting for address to become available..."
sleep 2
done
TAP_NR=$(</sys/class/net/"${VM_NET_TAP}"/ifindex)
TAP_PATH="/dev/tap${TAP_NR}"
@ -127,11 +130,20 @@ configureNAT () {
fi
ip address add ${VM_NET_IP%.*}.1/24 broadcast ${VM_NET_IP%.*}.255 dev dockerbridge
ip link set dockerbridge up
while ! ip link set dockerbridge up; do
info "Waiting for address to become available..."
sleep 2
done
# QEMU Works with taps, set tap to the bridge created
ip tuntap add dev "${VM_NET_TAP}" mode tap
ip link set "${VM_NET_TAP}" up promisc on
while ! ip link set "${VM_NET_TAP}" up promisc on; do
info "Waiting for tap to become available..."
sleep 2
done
ip link set dev "${VM_NET_TAP}" master dockerbridge
# Add internet connection to the VM
@ -165,6 +177,24 @@ configureNAT () {
return 0
}
closeNetwork () {
if [[ "${DHCP}" == [Yy1]* ]]; then
ip link set "${VM_NET_TAP}" down || true
ip link delete "${VM_NET_TAP}" || true
else
ip link set "${VM_NET_TAP}" down promisc off || true
ip link delete "${VM_NET_TAP}" || true
ip link set dockerbridge down || true
ip link delete dockerbridge || true
fi
}
# ######################################
# Configure Network
# ######################################

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@ -81,6 +81,8 @@ _graceful_shutdown() {
echo && echo " Quitting..."
echo 'quit' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}" >/dev/null 2>&1 || true
closeNetwork
return
}

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@ -93,7 +93,7 @@ set -m
)
set +m
if (( KERNEL > 5 )) || ( (( KERNEL == 5 )) && (( MINOR > 2 )) ); then
if (( KERNEL > 5 )) || ( (( KERNEL == 5 )) && (( MINOR > 10 )) ); then
pidwait -F "${_QEMU_PID}" & wait $!
else
tail --pid "$(cat "${_QEMU_PID}")" --follow /dev/null & wait $!