runc/patch/0085-runc-do-not-setup-sysctl-in-runc-when-userns-.patch

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From 9421de9838d904c5eea40f0bd0cd50a00157392f Mon Sep 17 00:00:00 2001
From: zhangsong34 <zhangsong34@huawei.com>
Date: Mon, 5 Mar 2018 21:15:15 +0800
Subject: [PATCH 85/94] runc: do not setup sysctl in runc when userns
enabled
reason:when userns enabled, runc will run as normal user, it has
no rights to setup sysctl even the ipcns sysctl. let docker-hooks do this job.
Change-Id: Ia77b8c1bf4255973736f04c0962eae722ed9683e
Signed-off-by: gus.gao <gus.gao@huawei.com>
Signed-off-by: zhangsong34 <zhangsong34@huawei.com>
---
libcontainer/standard_init_linux.go | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/libcontainer/standard_init_linux.go b/libcontainer/standard_init_linux.go
index 18506af..fd836f3 100644
--- a/libcontainer/standard_init_linux.go
+++ b/libcontainer/standard_init_linux.go
@@ -107,10 +107,12 @@ func (l *linuxStandardInit) Init() error {
if err := label.SetProcessLabel(l.config.ProcessLabel); err != nil {
return err
}
-
- for key, value := range l.config.Config.Sysctl {
- if err := writeSystemProperty(key, value); err != nil {
- return err
+ // when userns enabled, write to sysctl will fail, let docker-hooks do this job
+ if len(l.config.Config.UidMappings) == 0 && len(l.config.Config.GidMappings) == 0 {
+ for key, value := range l.config.Config.Sysctl {
+ if err := writeSystemProperty(key, value); err != nil {
+ return err
+ }
}
}
for _, path := range l.config.Config.ReadonlyPaths {
--
2.7.4.3