entrypoint.sh: check for /dev/net/tun

2022-08-03 15:40:26 +02:00 · 2022-08-03 15:40:26 +02:00 · 2dd0492b75
parent 23301ebb29
commit 2dd0492b75
1 changed files with 4 additions and 0 deletions
--- a/entrypoint.sh
+++ b/entrypoint.sh
@ -6,6 +6,10 @@ if [ "$#" -lt 1 ]; then
 fi
 unikernel=$1
 shift
+test -c /dev/net/tun || {
+	echo Cannot access /dev/net/tun >&2
+	exit 2
+}
 ip=$(ip a show eth0 | awk '/inet/{print $2}') || {
 	echo Could not determine ip address >&2
 	exit 2