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cri_stats_provider.go
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cri_stats_provider.go
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/*
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 stats
import (
"fmt"
internalapi "k8s.io/kubernetes/pkg/kubelet/apis/cri"
statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
"k8s.io/kubernetes/pkg/kubelet/cadvisor"
"k8s.io/kubernetes/pkg/kubelet/server/stats"
)
// criStatsProvider implements the containerStatsProvider interface by getting
// the container stats from CRI.
type criStatsProvider struct {
// cadvisor is used to get the node root filesystem's stats (such as the
// capacity/available bytes/inodes) that will be populated in per container
// filesystem stats.
cadvisor cadvisor.Interface
// resourceAnalyzer is used to get the volume stats of the pods.
resourceAnalyzer stats.ResourceAnalyzer
// runtimeService is used to get the status and stats of the pods and its
// managed containers.
runtimeService internalapi.RuntimeService
// imageService is used to get the stats of the image filesystem.
imageService internalapi.ImageManagerService
}
// newCRIStatsProvider returns a containerStatsProvider implementation that
// provides container stats using CRI.
func newCRIStatsProvider(
cadvisor cadvisor.Interface,
resourceAnalyzer stats.ResourceAnalyzer,
runtimeService internalapi.RuntimeService,
imageService internalapi.ImageManagerService,
) containerStatsProvider {
return &criStatsProvider{
cadvisor: cadvisor,
resourceAnalyzer: resourceAnalyzer,
runtimeService: runtimeService,
imageService: imageService,
}
}
func (p *criStatsProvider) ListPodStats() ([]statsapi.PodStats, error) {
return nil, fmt.Errorf("not implemented")
}
func (p *criStatsProvider) ImageFsStats() (*statsapi.FsStats, error) {
return nil, fmt.Errorf("not implemented")
}