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3d3ba6f898
As the feature mitigates the limitations of CRI stats provider for CRI-O Signed-off-by: Peter Hunt <pehunt@redhat.com>
86 lines
3.1 KiB
Go
86 lines
3.1 KiB
Go
/*
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Copyright 2015 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 cadvisor
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import (
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"strings"
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cadvisorapi "github.com/google/cadvisor/info/v1"
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cadvisorapi2 "github.com/google/cadvisor/info/v2"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
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"k8s.io/kubernetes/pkg/features"
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)
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const (
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// CrioSocketSuffix is the path to the CRI-O socket.
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// Please keep this in sync with the one in:
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// github.com/google/cadvisor/tree/master/container/crio/client.go
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// Note that however we only match on the suffix, as /var/run is often a
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// symlink to /run, so the user can specify either path.
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CrioSocketSuffix = "run/crio/crio.sock"
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)
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// CapacityFromMachineInfo returns the capacity of the resources from the machine info.
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func CapacityFromMachineInfo(info *cadvisorapi.MachineInfo) v1.ResourceList {
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c := v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(
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int64(info.NumCores*1000),
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resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(
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int64(info.MemoryCapacity),
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resource.BinarySI),
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}
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// if huge pages are enabled, we report them as a schedulable resource on the node
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for _, hugepagesInfo := range info.HugePages {
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pageSizeBytes := int64(hugepagesInfo.PageSize * 1024)
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hugePagesBytes := pageSizeBytes * int64(hugepagesInfo.NumPages)
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pageSizeQuantity := resource.NewQuantity(pageSizeBytes, resource.BinarySI)
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c[v1helper.HugePageResourceName(*pageSizeQuantity)] = *resource.NewQuantity(hugePagesBytes, resource.BinarySI)
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}
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return c
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}
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// EphemeralStorageCapacityFromFsInfo returns the capacity of the ephemeral storage from the FsInfo.
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func EphemeralStorageCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceList {
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c := v1.ResourceList{
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v1.ResourceEphemeralStorage: *resource.NewQuantity(
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int64(info.Capacity),
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resource.BinarySI),
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}
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return c
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}
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// UsingLegacyCadvisorStats returns true if container stats are provided by cadvisor instead of through the CRI.
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// CRI integrations should get container metrics via CRI.
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// TODO: cri-o relies on cadvisor as a temporary workaround. The code should
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// be removed. Related issue:
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// https://github.com/kubernetes/kubernetes/issues/51798
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func UsingLegacyCadvisorStats(runtimeEndpoint string) bool {
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// If PodAndContainerStatsFromCRI feature is enabled, then assume the user
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// wants to use CRI stats, as the aforementioned workaround isn't needed
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// when this feature is enabled.
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if utilfeature.DefaultFeatureGate.Enabled(features.PodAndContainerStatsFromCRI) {
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return false
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}
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return strings.HasSuffix(runtimeEndpoint, CrioSocketSuffix)
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}
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