f4a191917b
Use goresctrl for parsing container and pod annotations related to RDT. In practice, from the users' point of view, this patchs adds support for a container annotation and two separate pod annotations for controlling the RDT class of containers. Container annotation can be used by a CRI client: "io.kubernetes.cri.rdt-class" Pod annotations for specifying the RDT class in the K8s pod spec level: "rdt.resources.beta.kubernetes.io/pod" (pod-wide default for all containers within) "rdt.resources.beta.kubernetes.io/container.<container_name>" (container-specific overrides) Annotations are intended as an intermediate step before the CRI API supports RDT. Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>
59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
//go:build linux && !no_rdt
|
|
// +build linux,!no_rdt
|
|
|
|
/*
|
|
Copyright The containerd 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 tasks
|
|
|
|
import (
|
|
"github.com/containerd/containerd/log"
|
|
|
|
"github.com/intel/goresctrl/pkg/rdt"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
const (
|
|
// ResctrlPrefix is the prefix used for class/closid directories under the resctrl filesystem
|
|
ResctrlPrefix = ""
|
|
)
|
|
|
|
var rdtEnabled bool
|
|
|
|
func RdtEnabled() bool { return rdtEnabled }
|
|
|
|
func initRdt(configFilePath string) error {
|
|
rdtEnabled = false
|
|
|
|
if configFilePath == "" {
|
|
log.L.Debug("No RDT config file specified, RDT not configured")
|
|
return nil
|
|
}
|
|
|
|
if err := rdt.Initialize(ResctrlPrefix); err != nil {
|
|
return errors.Wrap(err, "RDT not enabled")
|
|
}
|
|
|
|
if err := rdt.SetConfigFromFile(configFilePath, true); err != nil {
|
|
return err
|
|
}
|
|
|
|
rdtEnabled = true
|
|
|
|
return nil
|
|
|
|
}
|