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authorEduRam <eduardo.ramalho@gmail.com>2018-07-17 22:59:35 +0000
committerIan Lance Taylor <iant@golang.org>2018-07-18 01:16:24 +0000
commitce09ce4ae0116d2056e8864fe2c2fd3abbc5375a (patch)
tree84fce2f0fdf726ea495ea59b20b0f85841d5a1c5 /src/syscall/exec_linux_test.go
parentf3cdc94154f75880ddd5d47d3cb78121aa622d22 (diff)
downloadgo-git-ce09ce4ae0116d2056e8864fe2c2fd3abbc5375a.tar.gz
syscall: update check for UserNS support for CentOS 7.5+
Fixes #26385 Change-Id: I5594564f42898a71d30531e5132bddb3a6915247 GitHub-Last-Rev: fbd7b38b0419e21ecd22fe802ede5c0ee3f14a9a GitHub-Pull-Request: golang/go#26427 Reviewed-on: https://go-review.googlesource.com/124555 Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/syscall/exec_linux_test.go')
-rw-r--r--src/syscall/exec_linux_test.go9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/syscall/exec_linux_test.go b/src/syscall/exec_linux_test.go
index 17df8f445e..f551e87736 100644
--- a/src/syscall/exec_linux_test.go
+++ b/src/syscall/exec_linux_test.go
@@ -84,6 +84,15 @@ func checkUserNS(t *testing.T) {
t.Skip("kernel doesn't support user namespaces")
}
}
+
+ // On Centos 7.5+, user namespaces are disabled if user.max_user_namespaces = 0
+ if _, err := os.Stat("/proc/sys/user/max_user_namespaces"); err == nil {
+ buf, errRead := ioutil.ReadFile("/proc/sys/user/max_user_namespaces")
+ if errRead == nil && buf[0] == '0' {
+ t.Skip("kernel doesn't support user namespaces")
+ }
+ }
+
// When running under the Go continuous build, skip tests for
// now when under Kubernetes. (where things are root but not quite)
// Both of these are our own environment variables.