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libcontainer: implement CLONE_NEWCGROUP

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This is a very simple implementation because it doesn't require any
configuration unlike the other namespaces, and in its current state it
only masks paths.

This feature is available in Linux 4.6+ and is enabled by default for
kernels compiled with CONFIG_CGROUP=y.

Signed-off-by: Aleksa Sarai <asarai@suse.de>
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Aleksa Sarai
2016-04-26 14:04:22 +10:00
committed by Michael Crosby
parent 7ca079fdeb
commit 9a3a8a5ebf
3 changed files with 21 additions and 12 deletions
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libcontainer/specconv/spec_linux.go
+1
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@@ -28,6 +28,7 @@ var namespaceMapping = map[specs.LinuxNamespaceType]configs.NamespaceType{
specs.UserNamespace: configs.NEWUSER,
specs.IPCNamespace: configs.NEWIPC,
specs.UTSNamespace: configs.NEWUTS,
specs.CgroupNamespace: configs.NEWCGROUP,
}
var mountPropagationMapping = map[string]int{