de37b9d293
This patch makes the CRI `v1` API the new project-wide default version. To allow backwards compatibility, a fallback to `v1alpha2` has been added as well. This fallback can either used by automatically determined by the kubelet. Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
92 lines
3.5 KiB
Go
92 lines
3.5 KiB
Go
//go:build windows && !dockerless
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// +build windows,!dockerless
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/*
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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 dockershim
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import (
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"strings"
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"time"
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"github.com/Microsoft/hcsshim"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1"
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"k8s.io/klog/v2"
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)
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func (ds *dockerService) getContainerStats(c *runtimeapi.Container) (*runtimeapi.ContainerStats, error) {
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hcsshimContainer, err := hcsshim.OpenContainer(c.Id)
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if err != nil {
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// As we moved from using Docker stats to hcsshim directly, we may query HCS with already exited container IDs.
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// That will typically happen with init-containers in Exited state. Docker still knows about them but the HCS does not.
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// As we don't want to block stats retrieval for other containers, we only log errors.
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if !hcsshim.IsNotExist(err) && !hcsshim.IsAlreadyStopped(err) {
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klog.V(4).InfoS("Error opening container (stats will be missing)", "containerID", c.Id, "err", err)
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}
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return nil, nil
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}
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defer func() {
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closeErr := hcsshimContainer.Close()
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if closeErr != nil {
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klog.ErrorS(closeErr, "Error closing container", "containerID", c.Id)
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}
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}()
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stats, err := hcsshimContainer.Statistics()
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if err != nil {
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if strings.Contains(err.Error(), "0x5") || strings.Contains(err.Error(), "0xc0370105") {
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// When the container is just created, querying for stats causes access errors because it hasn't started yet
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// This is transient; skip container for now
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//
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// These hcs errors do not have helpers exposed in public package so need to query for the known codes
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// https://github.com/microsoft/hcsshim/blob/master/internal/hcs/errors.go
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// PR to expose helpers in hcsshim: https://github.com/microsoft/hcsshim/pull/933
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klog.V(4).InfoS("Container is not in a state that stats can be accessed. This occurs when the container is created but not started.", "containerID", c.Id, "err", err)
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return nil, nil
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}
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return nil, err
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}
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timestamp := time.Now().UnixNano()
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containerStats := &runtimeapi.ContainerStats{
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Attributes: &runtimeapi.ContainerAttributes{
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Id: c.Id,
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Metadata: c.Metadata,
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Labels: c.Labels,
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Annotations: c.Annotations,
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},
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Cpu: &runtimeapi.CpuUsage{
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Timestamp: timestamp,
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// have to multiply cpu usage by 100 since stats units is in 100's of nano seconds for Windows
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UsageCoreNanoSeconds: &runtimeapi.UInt64Value{Value: stats.Processor.TotalRuntime100ns * 100},
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},
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Memory: &runtimeapi.MemoryUsage{
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Timestamp: timestamp,
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WorkingSetBytes: &runtimeapi.UInt64Value{Value: stats.Memory.UsagePrivateWorkingSetBytes},
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},
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WritableLayer: &runtimeapi.FilesystemUsage{
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Timestamp: timestamp,
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FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: ds.dockerRootDir},
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// used bytes from image are not implemented on Windows
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// don't query for it since it is expensive to call docker over named pipe
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// https://github.com/moby/moby/blob/1ba54a5fd0ba293db3bea46cd67604b593f2048b/daemon/images/image_windows.go#L11-L14
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UsedBytes: &runtimeapi.UInt64Value{Value: 0},
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},
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}
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return containerStats, nil
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}
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