f1aee7e049
Commit cc50aa9dfb introduced GetResourceStats, a method which collected
all the statistics from various cgroup controllers, only to discard all
of the info collected except a single value (memory usage).
While one may argue that this method can potentially be used from other
places, this did not happen since it was added 4+ years ago.
Let's streamline this code and only collect what we need, i.e. memory
usage. Rename the method accordingly.
While at it, fix pkg/kubelet/cm/cgroup_manager_unsupported.go to not
instantiate a new error every time a method is called.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
// +build !linux
|
|
|
|
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package cm
|
|
|
|
import "errors"
|
|
|
|
type unsupportedCgroupManager struct{}
|
|
|
|
var errNotSupported = errors.New("Cgroup Manager is not supported in this build")
|
|
|
|
// Make sure that unsupportedCgroupManager implements the CgroupManager interface
|
|
var _ CgroupManager = &unsupportedCgroupManager{}
|
|
|
|
type CgroupSubsystems struct {
|
|
Mounts []interface{}
|
|
MountPoints map[string]string
|
|
}
|
|
|
|
func NewCgroupManager(_ interface{}) CgroupManager {
|
|
return &unsupportedCgroupManager{}
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Name(_ CgroupName) string {
|
|
return ""
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Exists(_ CgroupName) bool {
|
|
return false
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Destroy(_ *CgroupConfig) error {
|
|
return nil
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Update(_ *CgroupConfig) error {
|
|
return nil
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Create(_ *CgroupConfig) error {
|
|
return errNotSupported
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) MemoryUsage(_ CgroupName) (int64, error) {
|
|
return -1, errNotSupported
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) Pids(_ CgroupName) []int {
|
|
return nil
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) CgroupName(name string) CgroupName {
|
|
return CgroupName([]string{})
|
|
}
|
|
|
|
func (m *unsupportedCgroupManager) ReduceCPULimits(cgroupName CgroupName) error {
|
|
return nil
|
|
}
|
|
|
|
var RootCgroupName = CgroupName([]string{})
|
|
|
|
func NewCgroupName(base CgroupName, components ...string) CgroupName {
|
|
return append(append([]string{}, base...), components...)
|
|
}
|
|
|
|
func (cgroupName CgroupName) ToSystemd() string {
|
|
return ""
|
|
}
|
|
|
|
func ParseSystemdToCgroupName(name string) CgroupName {
|
|
return nil
|
|
}
|
|
|
|
func (cgroupName CgroupName) ToCgroupfs() string {
|
|
return ""
|
|
}
|
|
|
|
func ParseCgroupfsToCgroupName(name string) CgroupName {
|
|
return nil
|
|
}
|
|
|
|
func IsSystemdStyleName(name string) bool {
|
|
return false
|
|
}
|