126 lines
3.8 KiB
Go
126 lines
3.8 KiB
Go
/*
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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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"github.com/containerd/containerd/api/types"
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v1 "github.com/containerd/containerd/metrics/types/v1"
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v2 "github.com/containerd/containerd/metrics/types/v2"
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"github.com/containerd/typeurl"
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"github.com/pkg/errors"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
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containerstore "github.com/containerd/containerd/pkg/cri/store/container"
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)
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func (c *criService) containerMetrics(
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meta containerstore.Metadata,
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stats *types.Metric,
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) (*runtime.ContainerStats, error) {
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var cs runtime.ContainerStats
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var usedBytes, inodesUsed uint64
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sn, err := c.snapshotStore.Get(meta.ID)
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// If snapshotstore doesn't have cached snapshot information
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// set WritableLayer usage to zero
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if err == nil {
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usedBytes = sn.Size
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inodesUsed = sn.Inodes
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}
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cs.WritableLayer = &runtime.FilesystemUsage{
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Timestamp: sn.Timestamp,
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FsId: &runtime.FilesystemIdentifier{
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Mountpoint: c.imageFSPath,
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},
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UsedBytes: &runtime.UInt64Value{Value: usedBytes},
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InodesUsed: &runtime.UInt64Value{Value: inodesUsed},
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}
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cs.Attributes = &runtime.ContainerAttributes{
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Id: meta.ID,
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Metadata: meta.Config.GetMetadata(),
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Labels: meta.Config.GetLabels(),
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Annotations: meta.Config.GetAnnotations(),
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}
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if stats != nil {
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s, err := typeurl.UnmarshalAny(stats.Data)
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if err != nil {
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return nil, errors.Wrap(err, "failed to extract container metrics")
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}
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switch metrics := s.(type) {
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case *v1.Metrics:
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if metrics.CPU != nil && metrics.CPU.Usage != nil {
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cs.Cpu = &runtime.CpuUsage{
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Timestamp: stats.Timestamp.UnixNano(),
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UsageCoreNanoSeconds: &runtime.UInt64Value{Value: metrics.CPU.Usage.Total},
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}
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}
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if metrics.Memory != nil && metrics.Memory.Usage != nil {
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cs.Memory = &runtime.MemoryUsage{
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Timestamp: stats.Timestamp.UnixNano(),
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WorkingSetBytes: &runtime.UInt64Value{
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Value: getWorkingSet(metrics.Memory),
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},
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}
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}
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case *v2.Metrics:
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if metrics.CPU != nil {
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cs.Cpu = &runtime.CpuUsage{
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Timestamp: stats.Timestamp.UnixNano(),
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UsageCoreNanoSeconds: &runtime.UInt64Value{Value: metrics.CPU.UsageUsec * 1000},
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}
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}
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if metrics.Memory != nil {
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cs.Memory = &runtime.MemoryUsage{
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Timestamp: stats.Timestamp.UnixNano(),
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WorkingSetBytes: &runtime.UInt64Value{
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Value: getWorkingSetV2(metrics.Memory),
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},
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}
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}
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default:
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return &cs, errors.Errorf("unexpected metrics type: %v", metrics)
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}
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}
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return &cs, nil
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}
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// getWorkingSet calculates workingset memory from cgroup memory stats.
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// The caller should make sure memory is not nil.
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// workingset = usage - total_inactive_file
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func getWorkingSet(memory *v1.MemoryStat) uint64 {
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if memory.Usage == nil {
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return 0
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}
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var workingSet uint64
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if memory.TotalInactiveFile < memory.Usage.Usage {
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workingSet = memory.Usage.Usage - memory.TotalInactiveFile
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}
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return workingSet
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}
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// getWorkingSetV2 calculates workingset memory from cgroupv2 memory stats.
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// The caller should make sure memory is not nil.
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// workingset = usage - inactive_file
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func getWorkingSetV2(memory *v2.MemoryStat) uint64 {
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var workingSet uint64
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if memory.InactiveFile < memory.Usage {
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workingSet = memory.Usage - memory.InactiveFile
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}
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return workingSet
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}
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