Delete network on shutdown

Delete network on shutdown

run/network.sh

@@ -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
 # ######################################

run/power.sh

@@ -50,6 +50,8 @@ _graceful_shutdown() {
   echo && echo "❯ Quitting..."
   echo 'quit' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}" >/dev/null 2>&1 || true
 
+  closeNetwork
+
   return
 }
 

run/run.sh

@@ -81,7 +81,7 @@ 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 $!