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Promote Local storage capacity isolation feature to GA

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This change is to promote local storage capacity isolation feature to GA

At the same time, to allow rootless system disable this feature due to
unable to get root fs, this change introduced a new kubelet config
"localStorageCapacityIsolation". By default it is set to true. For
rootless systems, they can set this configuration to false to disable
the feature. Once it is set, user cannot set ephemeral-storage
request/limit because capacity and allocatable will not be set.

Change-Id: I48a52e737c6a09e9131454db6ad31247b56c000a
This commit is contained in:
jinxu
2022-07-28 08:03:20 -07:00
parent bc4c4930ff
commit 0064010cdd
42 changed files with 267 additions and 383 deletions
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4
pkg/kubelet/cadvisor/cadvisor_linux.go
View File

@@ -80,7 +80,7 @@ func init() {
}
// New creates a new cAdvisor Interface for linux systems.
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats bool) (Interface, error) {
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats, localStorageCapacityIsolation bool) (Interface, error) {
sysFs := sysfs.NewRealSysFs()
includedMetrics := cadvisormetrics.MetricSet{
@@ -99,7 +99,7 @@ func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots [
includedMetrics[cadvisormetrics.AcceleratorUsageMetrics] = struct{}{}
}
if usingLegacyStats || utilfeature.DefaultFeatureGate.Enabled(kubefeatures.LocalStorageCapacityIsolation) {
if usingLegacyStats || localStorageCapacityIsolation {
includedMetrics[cadvisormetrics.DiskUsageMetrics] = struct{}{}
}

2
pkg/kubelet/cadvisor/cadvisor_unsupported.go
View File

@@ -33,7 +33,7 @@ type cadvisorUnsupported struct {
var _ Interface = new(cadvisorUnsupported)
// New creates a new cAdvisor Interface for unsupported systems.
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupsRoots []string, usingLegacyStats bool) (Interface, error) {
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupsRoots []string, usingLegacyStats, localStorageCapacityIsolation bool) (Interface, error) {
return &cadvisorUnsupported{}, nil
}

2
pkg/kubelet/cadvisor/cadvisor_windows.go
View File

@@ -34,7 +34,7 @@ type cadvisorClient struct {
var _ Interface = new(cadvisorClient)
// New creates a cAdvisor and exports its API on the specified port if port > 0.
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats bool) (Interface, error) {
func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats, localStorageCapacityIsolation bool) (Interface, error) {
client, err := winstats.NewPerfCounterClient()
return &cadvisorClient{
rootPath: rootPath,