mirror of https://github.com/k3s-io/k3s
48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
/*
|
|
Copyright 2017 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 server
|
|
|
|
import (
|
|
tasks "github.com/containerd/containerd/api/services/tasks/v1"
|
|
"github.com/pkg/errors"
|
|
"golang.org/x/net/context"
|
|
runtime "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
|
|
)
|
|
|
|
// ContainerStats returns stats of the container. If the container does not
|
|
// exist, the call returns an error.
|
|
func (c *criService) ContainerStats(ctx context.Context, in *runtime.ContainerStatsRequest) (*runtime.ContainerStatsResponse, error) {
|
|
cntr, err := c.containerStore.Get(in.GetContainerId())
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to find container")
|
|
}
|
|
request := &tasks.MetricsRequest{Filters: []string{"id==" + cntr.ID}}
|
|
resp, err := c.client.TaskService().Metrics(ctx, request)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to fetch metrics for task")
|
|
}
|
|
if len(resp.Metrics) != 1 {
|
|
return nil, errors.Errorf("unexpected metrics response: %+v", resp.Metrics)
|
|
}
|
|
|
|
cs, err := c.getContainerMetrics(cntr.Metadata, resp.Metrics[0])
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to decode container metrics")
|
|
}
|
|
return &runtime.ContainerStatsResponse{Stats: cs}, nil
|
|
}
|