10576c298e
This patch adds support for a container annotation and two separate
pod annotations for controlling the blockio class of containers.
The container annotation can be used by a CRI client:
"io.kubernetes.cri.blockio-class"
Pod annotations specify the blockio class in the K8s pod spec level:
"blockio.resources.beta.kubernetes.io/pod"
(pod-wide default for all containers within)
"blockio.resources.beta.kubernetes.io/container.<container_name>"
(container-specific overrides)
Correspondingly, this patch adds support for --blockio-class and
--blockio-config-file to ctr, too.
This implementation follows the resource class annotation pattern
introduced in RDT and merged in commit 893701220.
Signed-off-by: Antti Kervinen <antti.kervinen@intel.com>
64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
// Copyright 2021 Intel Corporation. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This module provides the native implementation of the filesystem
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// interface (fsi).
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package cgroups
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import (
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"os"
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"path/filepath"
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)
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type fsOs struct{}
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type osFile struct {
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file *os.File
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}
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func newFsiOS() fsiIface {
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return fsOs{}
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}
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func (fsOs) OpenFile(name string, flag int, perm os.FileMode) (fileIface, error) {
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f, err := os.OpenFile(name, flag, perm)
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return osFile{f}, err
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}
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func (fsOs) Open(name string) (fileIface, error) {
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f, err := os.Open(name)
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return osFile{f}, err
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}
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func (fsOs) Lstat(name string) (os.FileInfo, error) {
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return os.Lstat(name)
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}
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func (fsOs) Walk(root string, walkFn filepath.WalkFunc) error {
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return filepath.Walk(root, walkFn)
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}
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func (osf osFile) Write(b []byte) (n int, err error) {
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return osf.file.Write(b)
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}
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func (osf osFile) Read(b []byte) (n int, err error) {
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return osf.file.Read(b)
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}
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func (osf osFile) Close() error {
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return osf.file.Close()
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}
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