mrrl-containers

commit 7376f66811749cb476645c11f16c65e0ba82c01b
parent 62efa5671d77be5a64d5c7ccf4a909ad3a8d4ac7
Author: Jan Pobříslo <ccx@te2000.cz>
Date:   Thu, 16 Dec 2021 15:21:31 +0000

Add NS_NO_PID1 environment variable.
Diffstat:
M
sbin/ns_run
 | 
7
++++++-

1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sbin/ns_run b/sbin/ns_run
@@ -20,6 +20,7 @@
 ##            - anything you wish to call before and for dropping privs,
 ##              eg. s6-applyuidgid
 ##            All statically linked of course.
+##   NS_NO_PID1 - Allow not running as init process of the namespace.
 
 # import variables from environment, with defaults
 multisubstitute {
@@ -31,7 +32,11 @@ multisubstitute {
 
 # check we are PID1 (in a new PID namespace)
 getpid PID
-ifelse { importas -i PID PID test 1 -ne $PID } {
+ifelse {
+	importas -D "" NS_NO_PID1 NS_NO_PID1 
+	if -x 0 { test -z $NS_NO_PID1 }
+	importas -i PID PID test 1 -ne $PID
+} {
 	fdmove -c 1 2
 	echo "ns_run: fatal: not PID 1"
 	exit 111