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libcontainer: add method to get cgroup config from cgroup Manager

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`configs.Cgroup` contains the configuration used to create cgroups. This
configuration must be saved to disk, since it's required to restore the
cgroup manager that was used to create the cgroups.
Add method to get cgroup configuration from cgroup Manager to allow API users
save it to disk and restore a cgroup manager later.

fixes #2176

Signed-off-by: Julio Montes <julio.montes@intel.com>
This commit is contained in:
Julio Montes
2019-12-06 15:43:08 +00:00
parent cd7c59d042
commit 8ddd892072
6 changed files with 26 additions and 0 deletions
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libcontainer/container_linux_test.go
+7
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@@ -61,6 +61,9 @@ func (m *mockCgroupManager) GetUnifiedPath() (string, error) {
func (m *mockCgroupManager) Freeze(state configs.FreezerState) error {
return nil
}
func (m *mockCgroupManager) GetCgroups() (*configs.Cgroup, error) {
return nil, nil
}
func (m *mockIntelRdtManager) Apply(pid int) error {
return nil
@@ -82,6 +85,10 @@ func (m *mockIntelRdtManager) Set(container *configs.Config) error {
return nil
}
func (m *mockIntelRdtManager) GetCgroups() (*configs.Cgroup, error) {
return nil, nil
}
type mockProcess struct {
_pid int
started uint64