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>
40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
//go:build !no_rdt
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/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package server
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import (
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"fmt"
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"github.com/containerd/containerd/services/tasks"
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"github.com/intel/goresctrl/pkg/rdt"
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)
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// rdtClassFromAnnotations examines container and pod annotations of a
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// container and returns its effective RDT class.
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func rdtClassFromAnnotations(containerName string, containerAnnotations, podAnnotations map[string]string) (string, error) {
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cls, err := rdt.ContainerClassFromAnnotations(containerName, containerAnnotations, podAnnotations)
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if err != nil {
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return "", err
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}
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if cls != "" && !tasks.RdtEnabled() {
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return "", fmt.Errorf("RDT disabled, refusing to set RDT class of container %q to %q", containerName, cls)
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}
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return cls, nil
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}
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