Ensure signal is forwarded to virt-launcher process

Signed-off-by: David Vossel <[email protected]>

cmd/virt-launcher/entrypoint.sh

@@ -1,6 +1,13 @@
 #!/bin/bash
 set +e
 
+_term() { 
+  echo "caught signal"
+  kill -TERM "$virt_launcher_pid" 2>/dev/null
+}
+
+trap _term SIGTERM SIGINT SIGQUIT
+
 # HACK
 # Try to create /dev/kvm if not present
 if [ ! -e /dev/kvm ]; then
@@ -10,13 +17,24 @@ fi
 chown :qemu /dev/kvm
 chmod 660 /dev/kvm
 
-
 # Cockpit/OCP hack to all shoing the vm terminal
 mv /usr/bin/sh /usr/bin/sh.orig
 mv /sh.sh /usr/bin/sh
 chmod +x /usr/bin/sh
 
-./virt-launcher $@
+./virt-launcher $@ &
+virt_launcher_pid=$!
+while true; do
+	if ! [ -d /proc/$virt_launcher_pid ]; then
+		break;
+	fi
+	sleep 1
+done
+# call wait after we know the pid has exited in order
+# to get the return code. If we call wait before the pid
+# exits, wait will actually return early when we forward
+# the trapped signal in _trap(). We don't want that.
+wait -n $virt_launcher_pid
 rc=$?
 
 echo "virt-launcher exited with code $rc"