68 lines
2.3 KiB
Go
68 lines
2.3 KiB
Go
/*
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Copyright 2017 The Kubernetes 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"
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"github.com/golang/glog"
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"github.com/golang/protobuf/proto"
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runtimespec "github.com/opencontainers/runtime-spec/specs-go"
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"golang.org/x/net/context"
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"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
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)
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// UpdateContainerResources updates ContainerConfig of the container.
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func (c *criContainerdService) UpdateContainerResources(ctx context.Context, r *runtime.UpdateContainerResourcesRequest) (retRes *runtime.UpdateContainerResourcesResponse, retErr error) {
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glog.V(2).Infof("UpdateContainerResources for container %q with %+v", r.GetContainerId(), r.GetLinux())
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defer func() {
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if retErr == nil {
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glog.V(2).Infof("UpdateContainerResources for container %q returns successfully", r.GetContainerId())
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}
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}()
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cntr, err := c.containerStore.Get(r.GetContainerId())
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if err != nil {
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return nil, fmt.Errorf("failed to find container: %v", err)
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}
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task, err := cntr.Container.Task(ctx, nil)
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if err != nil {
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return nil, fmt.Errorf("failed to find task: %v", err)
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}
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resources := toOCIResources(r.GetLinux())
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if err := task.Update(ctx, containerd.WithResources(resources)); err != nil {
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return nil, fmt.Errorf("failed to update resources: %v", err)
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}
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return &runtime.UpdateContainerResourcesResponse{}, nil
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}
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// toOCIResources converts CRI resource constraints to OCI.
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func toOCIResources(r *runtime.LinuxContainerResources) *runtimespec.LinuxResources {
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return &runtimespec.LinuxResources{
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CPU: &runtimespec.LinuxCPU{
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Shares: proto.Uint64(uint64(r.GetCpuShares())),
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Quota: proto.Int64(r.GetCpuQuota()),
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Period: proto.Uint64(uint64(r.GetCpuPeriod())),
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Cpus: r.GetCpusetCpus(),
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Mems: r.GetCpusetMems(),
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},
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Memory: &runtimespec.LinuxMemory{
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Limit: proto.Int64(r.GetMemoryLimitInBytes()),
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},
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}
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}
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