Move core api to pkg/apis/core
This commit is contained in:
Dr. Stefan Schimanski
51
pkg/apis/core/helper/BUILD
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51
pkg/apis/core/helper/BUILD
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@@ -0,0 +1,51 @@
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package(default_visibility = ["//visibility:public"])
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load(
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"@io_bazel_rules_go//go:def.bzl",
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"go_library",
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"go_test",
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)
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go_test(
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name = "go_default_test",
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srcs = ["helpers_test.go"],
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importpath = "k8s.io/kubernetes/pkg/api/helper",
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library = ":go_default_library",
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deps = [
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"//pkg/api:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
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],
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)
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go_library(
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name = "go_default_library",
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srcs = ["helpers.go"],
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importpath = "k8s.io/kubernetes/pkg/api/helper",
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deps = [
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"//pkg/api:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/conversion:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/fields:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/selection:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
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],
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)
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filegroup(
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name = "package-srcs",
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srcs = glob(["**"]),
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tags = ["automanaged"],
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visibility = ["//visibility:private"],
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)
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filegroup(
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name = "all-srcs",
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srcs = [
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":package-srcs",
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"//pkg/api/helper/qos:all-srcs",
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],
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tags = ["automanaged"],
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)
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655
pkg/apis/core/helper/helpers.go
Normal file
655
pkg/apis/core/helper/helpers.go
Normal file
@@ -0,0 +1,655 @@
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/*
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Copyright 2014 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 helper
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import (
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"encoding/json"
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"fmt"
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"strings"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/conversion"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/selection"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/kubernetes/pkg/api"
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)
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// IsHugePageResourceName returns true if the resource name has the huge page
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// resource prefix.
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func IsHugePageResourceName(name api.ResourceName) bool {
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return strings.HasPrefix(string(name), api.ResourceHugePagesPrefix)
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}
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// HugePageResourceName returns a ResourceName with the canonical hugepage
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// prefix prepended for the specified page size. The page size is converted
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// to its canonical representation.
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func HugePageResourceName(pageSize resource.Quantity) api.ResourceName {
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return api.ResourceName(fmt.Sprintf("%s%s", api.ResourceHugePagesPrefix, pageSize.String()))
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}
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// HugePageSizeFromResourceName returns the page size for the specified huge page
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// resource name. If the specified input is not a valid huge page resource name
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// an error is returned.
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func HugePageSizeFromResourceName(name api.ResourceName) (resource.Quantity, error) {
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if !IsHugePageResourceName(name) {
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return resource.Quantity{}, fmt.Errorf("resource name: %s is not valid hugepage name", name)
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}
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pageSize := strings.TrimPrefix(string(name), api.ResourceHugePagesPrefix)
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return resource.ParseQuantity(pageSize)
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}
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// NonConvertibleFields iterates over the provided map and filters out all but
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// any keys with the "non-convertible.kubernetes.io" prefix.
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func NonConvertibleFields(annotations map[string]string) map[string]string {
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nonConvertibleKeys := map[string]string{}
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for key, value := range annotations {
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if strings.HasPrefix(key, api.NonConvertibleAnnotationPrefix) {
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nonConvertibleKeys[key] = value
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}
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}
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return nonConvertibleKeys
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}
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// Semantic can do semantic deep equality checks for api objects.
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// Example: apiequality.Semantic.DeepEqual(aPod, aPodWithNonNilButEmptyMaps) == true
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var Semantic = conversion.EqualitiesOrDie(
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func(a, b resource.Quantity) bool {
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// Ignore formatting, only care that numeric value stayed the same.
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// TODO: if we decide it's important, it should be safe to start comparing the format.
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//
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// Uninitialized quantities are equivalent to 0 quantities.
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return a.Cmp(b) == 0
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},
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func(a, b metav1.MicroTime) bool {
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return a.UTC() == b.UTC()
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},
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func(a, b metav1.Time) bool {
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return a.UTC() == b.UTC()
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},
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func(a, b labels.Selector) bool {
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return a.String() == b.String()
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},
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func(a, b fields.Selector) bool {
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return a.String() == b.String()
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},
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)
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var standardResourceQuotaScopes = sets.NewString(
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string(api.ResourceQuotaScopeTerminating),
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string(api.ResourceQuotaScopeNotTerminating),
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string(api.ResourceQuotaScopeBestEffort),
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string(api.ResourceQuotaScopeNotBestEffort),
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)
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// IsStandardResourceQuotaScope returns true if the scope is a standard value
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func IsStandardResourceQuotaScope(str string) bool {
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return standardResourceQuotaScopes.Has(str)
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}
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var podObjectCountQuotaResources = sets.NewString(
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string(api.ResourcePods),
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)
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var podComputeQuotaResources = sets.NewString(
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string(api.ResourceCPU),
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string(api.ResourceMemory),
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string(api.ResourceLimitsCPU),
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string(api.ResourceLimitsMemory),
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string(api.ResourceRequestsCPU),
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string(api.ResourceRequestsMemory),
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)
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// IsResourceQuotaScopeValidForResource returns true if the resource applies to the specified scope
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func IsResourceQuotaScopeValidForResource(scope api.ResourceQuotaScope, resource string) bool {
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switch scope {
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case api.ResourceQuotaScopeTerminating, api.ResourceQuotaScopeNotTerminating, api.ResourceQuotaScopeNotBestEffort:
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return podObjectCountQuotaResources.Has(resource) || podComputeQuotaResources.Has(resource)
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case api.ResourceQuotaScopeBestEffort:
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return podObjectCountQuotaResources.Has(resource)
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default:
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return true
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}
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}
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var standardContainerResources = sets.NewString(
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string(api.ResourceCPU),
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string(api.ResourceMemory),
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string(api.ResourceEphemeralStorage),
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)
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// IsStandardContainerResourceName returns true if the container can make a resource request
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// for the specified resource
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func IsStandardContainerResourceName(str string) bool {
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return standardContainerResources.Has(str) || IsHugePageResourceName(api.ResourceName(str))
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}
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// IsExtendedResourceName returns true if the resource name is not in the
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// default namespace, or it has the opaque integer resource prefix.
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func IsExtendedResourceName(name api.ResourceName) bool {
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// TODO: Remove OIR part following deprecation.
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return !IsDefaultNamespaceResource(name) || IsOpaqueIntResourceName(name)
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}
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// IsDefaultNamespaceResource returns true if the resource name is in the
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// *kubernetes.io/ namespace. Partially-qualified (unprefixed) names are
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// implicitly in the kubernetes.io/ namespace.
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func IsDefaultNamespaceResource(name api.ResourceName) bool {
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return !strings.Contains(string(name), "/") ||
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strings.Contains(string(name), api.ResourceDefaultNamespacePrefix)
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}
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// IsOpaqueIntResourceName returns true if the resource name has the opaque
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// integer resource prefix.
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func IsOpaqueIntResourceName(name api.ResourceName) bool {
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return strings.HasPrefix(string(name), api.ResourceOpaqueIntPrefix)
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}
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// OpaqueIntResourceName returns a ResourceName with the canonical opaque
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// integer prefix prepended. If the argument already has the prefix, it is
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// returned unmodified.
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func OpaqueIntResourceName(name string) api.ResourceName {
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if IsOpaqueIntResourceName(api.ResourceName(name)) {
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return api.ResourceName(name)
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}
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return api.ResourceName(fmt.Sprintf("%s%s", api.ResourceOpaqueIntPrefix, name))
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}
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var overcommitBlacklist = sets.NewString(string(api.ResourceNvidiaGPU))
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// IsOvercommitAllowed returns true if the resource is in the default
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// namespace and not blacklisted.
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func IsOvercommitAllowed(name api.ResourceName) bool {
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return IsDefaultNamespaceResource(name) &&
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!IsHugePageResourceName(name) &&
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!overcommitBlacklist.Has(string(name))
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}
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var standardLimitRangeTypes = sets.NewString(
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string(api.LimitTypePod),
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string(api.LimitTypeContainer),
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string(api.LimitTypePersistentVolumeClaim),
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)
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// IsStandardLimitRangeType returns true if the type is Pod or Container
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func IsStandardLimitRangeType(str string) bool {
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return standardLimitRangeTypes.Has(str)
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}
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var standardQuotaResources = sets.NewString(
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string(api.ResourceCPU),
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string(api.ResourceMemory),
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string(api.ResourceEphemeralStorage),
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string(api.ResourceRequestsCPU),
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string(api.ResourceRequestsMemory),
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string(api.ResourceRequestsStorage),
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string(api.ResourceRequestsEphemeralStorage),
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string(api.ResourceLimitsCPU),
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string(api.ResourceLimitsMemory),
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string(api.ResourceLimitsEphemeralStorage),
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string(api.ResourcePods),
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string(api.ResourceQuotas),
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string(api.ResourceServices),
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string(api.ResourceReplicationControllers),
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string(api.ResourceSecrets),
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string(api.ResourcePersistentVolumeClaims),
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string(api.ResourceConfigMaps),
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string(api.ResourceServicesNodePorts),
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string(api.ResourceServicesLoadBalancers),
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)
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// IsStandardQuotaResourceName returns true if the resource is known to
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// the quota tracking system
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func IsStandardQuotaResourceName(str string) bool {
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return standardQuotaResources.Has(str)
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}
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var standardResources = sets.NewString(
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string(api.ResourceCPU),
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string(api.ResourceMemory),
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string(api.ResourceEphemeralStorage),
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string(api.ResourceRequestsCPU),
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string(api.ResourceRequestsMemory),
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string(api.ResourceRequestsEphemeralStorage),
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string(api.ResourceLimitsCPU),
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string(api.ResourceLimitsMemory),
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string(api.ResourceLimitsEphemeralStorage),
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string(api.ResourcePods),
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string(api.ResourceQuotas),
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string(api.ResourceServices),
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string(api.ResourceReplicationControllers),
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string(api.ResourceSecrets),
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string(api.ResourceConfigMaps),
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string(api.ResourcePersistentVolumeClaims),
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string(api.ResourceStorage),
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string(api.ResourceRequestsStorage),
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string(api.ResourceServicesNodePorts),
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string(api.ResourceServicesLoadBalancers),
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)
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// IsStandardResourceName returns true if the resource is known to the system
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func IsStandardResourceName(str string) bool {
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return standardResources.Has(str) || IsHugePageResourceName(api.ResourceName(str))
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}
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var integerResources = sets.NewString(
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string(api.ResourcePods),
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string(api.ResourceQuotas),
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string(api.ResourceServices),
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string(api.ResourceReplicationControllers),
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string(api.ResourceSecrets),
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string(api.ResourceConfigMaps),
|
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string(api.ResourcePersistentVolumeClaims),
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string(api.ResourceServicesNodePorts),
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string(api.ResourceServicesLoadBalancers),
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)
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|
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// IsIntegerResourceName returns true if the resource is measured in integer values
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func IsIntegerResourceName(str string) bool {
|
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return integerResources.Has(str) || IsExtendedResourceName(api.ResourceName(str))
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}
|
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|
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// Extended and HugePages resources
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func IsScalarResourceName(name api.ResourceName) bool {
|
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return IsExtendedResourceName(name) || IsHugePageResourceName(name)
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||||
}
|
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|
||||
// this function aims to check if the service's ClusterIP is set or not
|
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// the objective is not to perform validation here
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func IsServiceIPSet(service *api.Service) bool {
|
||||
return service.Spec.ClusterIP != api.ClusterIPNone && service.Spec.ClusterIP != ""
|
||||
}
|
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|
||||
// this function aims to check if the service's cluster IP is requested or not
|
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func IsServiceIPRequested(service *api.Service) bool {
|
||||
// ExternalName services are CNAME aliases to external ones. Ignore the IP.
|
||||
if service.Spec.Type == api.ServiceTypeExternalName {
|
||||
return false
|
||||
}
|
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return service.Spec.ClusterIP == ""
|
||||
}
|
||||
|
||||
var standardFinalizers = sets.NewString(
|
||||
string(api.FinalizerKubernetes),
|
||||
metav1.FinalizerOrphanDependents,
|
||||
metav1.FinalizerDeleteDependents,
|
||||
)
|
||||
|
||||
// HasAnnotation returns a bool if passed in annotation exists
|
||||
func HasAnnotation(obj api.ObjectMeta, ann string) bool {
|
||||
_, found := obj.Annotations[ann]
|
||||
return found
|
||||
}
|
||||
|
||||
// SetMetaDataAnnotation sets the annotation and value
|
||||
func SetMetaDataAnnotation(obj *api.ObjectMeta, ann string, value string) {
|
||||
if obj.Annotations == nil {
|
||||
obj.Annotations = make(map[string]string)
|
||||
}
|
||||
obj.Annotations[ann] = value
|
||||
}
|
||||
|
||||
func IsStandardFinalizerName(str string) bool {
|
||||
return standardFinalizers.Has(str)
|
||||
}
|
||||
|
||||
// AddToNodeAddresses appends the NodeAddresses to the passed-by-pointer slice,
|
||||
// only if they do not already exist
|
||||
func AddToNodeAddresses(addresses *[]api.NodeAddress, addAddresses ...api.NodeAddress) {
|
||||
for _, add := range addAddresses {
|
||||
exists := false
|
||||
for _, existing := range *addresses {
|
||||
if existing.Address == add.Address && existing.Type == add.Type {
|
||||
exists = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !exists {
|
||||
*addresses = append(*addresses, add)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: make method on LoadBalancerStatus?
|
||||
func LoadBalancerStatusEqual(l, r *api.LoadBalancerStatus) bool {
|
||||
return ingressSliceEqual(l.Ingress, r.Ingress)
|
||||
}
|
||||
|
||||
func ingressSliceEqual(lhs, rhs []api.LoadBalancerIngress) bool {
|
||||
if len(lhs) != len(rhs) {
|
||||
return false
|
||||
}
|
||||
for i := range lhs {
|
||||
if !ingressEqual(&lhs[i], &rhs[i]) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func ingressEqual(lhs, rhs *api.LoadBalancerIngress) bool {
|
||||
if lhs.IP != rhs.IP {
|
||||
return false
|
||||
}
|
||||
if lhs.Hostname != rhs.Hostname {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// TODO: make method on LoadBalancerStatus?
|
||||
func LoadBalancerStatusDeepCopy(lb *api.LoadBalancerStatus) *api.LoadBalancerStatus {
|
||||
c := &api.LoadBalancerStatus{}
|
||||
c.Ingress = make([]api.LoadBalancerIngress, len(lb.Ingress))
|
||||
for i := range lb.Ingress {
|
||||
c.Ingress[i] = lb.Ingress[i]
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
||||
// GetAccessModesAsString returns a string representation of an array of access modes.
|
||||
// modes, when present, are always in the same order: RWO,ROX,RWX.
|
||||
func GetAccessModesAsString(modes []api.PersistentVolumeAccessMode) string {
|
||||
modes = removeDuplicateAccessModes(modes)
|
||||
modesStr := []string{}
|
||||
if containsAccessMode(modes, api.ReadWriteOnce) {
|
||||
modesStr = append(modesStr, "RWO")
|
||||
}
|
||||
if containsAccessMode(modes, api.ReadOnlyMany) {
|
||||
modesStr = append(modesStr, "ROX")
|
||||
}
|
||||
if containsAccessMode(modes, api.ReadWriteMany) {
|
||||
modesStr = append(modesStr, "RWX")
|
||||
}
|
||||
return strings.Join(modesStr, ",")
|
||||
}
|
||||
|
||||
// GetAccessModesAsString returns an array of AccessModes from a string created by GetAccessModesAsString
|
||||
func GetAccessModesFromString(modes string) []api.PersistentVolumeAccessMode {
|
||||
strmodes := strings.Split(modes, ",")
|
||||
accessModes := []api.PersistentVolumeAccessMode{}
|
||||
for _, s := range strmodes {
|
||||
s = strings.Trim(s, " ")
|
||||
switch {
|
||||
case s == "RWO":
|
||||
accessModes = append(accessModes, api.ReadWriteOnce)
|
||||
case s == "ROX":
|
||||
accessModes = append(accessModes, api.ReadOnlyMany)
|
||||
case s == "RWX":
|
||||
accessModes = append(accessModes, api.ReadWriteMany)
|
||||
}
|
||||
}
|
||||
return accessModes
|
||||
}
|
||||
|
||||
// removeDuplicateAccessModes returns an array of access modes without any duplicates
|
||||
func removeDuplicateAccessModes(modes []api.PersistentVolumeAccessMode) []api.PersistentVolumeAccessMode {
|
||||
accessModes := []api.PersistentVolumeAccessMode{}
|
||||
for _, m := range modes {
|
||||
if !containsAccessMode(accessModes, m) {
|
||||
accessModes = append(accessModes, m)
|
||||
}
|
||||
}
|
||||
return accessModes
|
||||
}
|
||||
|
||||
func containsAccessMode(modes []api.PersistentVolumeAccessMode, mode api.PersistentVolumeAccessMode) bool {
|
||||
for _, m := range modes {
|
||||
if m == mode {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// NodeSelectorRequirementsAsSelector converts the []NodeSelectorRequirement api type into a struct that implements
|
||||
// labels.Selector.
|
||||
func NodeSelectorRequirementsAsSelector(nsm []api.NodeSelectorRequirement) (labels.Selector, error) {
|
||||
if len(nsm) == 0 {
|
||||
return labels.Nothing(), nil
|
||||
}
|
||||
selector := labels.NewSelector()
|
||||
for _, expr := range nsm {
|
||||
var op selection.Operator
|
||||
switch expr.Operator {
|
||||
case api.NodeSelectorOpIn:
|
||||
op = selection.In
|
||||
case api.NodeSelectorOpNotIn:
|
||||
op = selection.NotIn
|
||||
case api.NodeSelectorOpExists:
|
||||
op = selection.Exists
|
||||
case api.NodeSelectorOpDoesNotExist:
|
||||
op = selection.DoesNotExist
|
||||
case api.NodeSelectorOpGt:
|
||||
op = selection.GreaterThan
|
||||
case api.NodeSelectorOpLt:
|
||||
op = selection.LessThan
|
||||
default:
|
||||
return nil, fmt.Errorf("%q is not a valid node selector operator", expr.Operator)
|
||||
}
|
||||
r, err := labels.NewRequirement(expr.Key, op, expr.Values)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
selector = selector.Add(*r)
|
||||
}
|
||||
return selector, nil
|
||||
}
|
||||
|
||||
// GetTolerationsFromPodAnnotations gets the json serialized tolerations data from Pod.Annotations
|
||||
// and converts it to the []Toleration type in api.
|
||||
func GetTolerationsFromPodAnnotations(annotations map[string]string) ([]api.Toleration, error) {
|
||||
var tolerations []api.Toleration
|
||||
if len(annotations) > 0 && annotations[api.TolerationsAnnotationKey] != "" {
|
||||
err := json.Unmarshal([]byte(annotations[api.TolerationsAnnotationKey]), &tolerations)
|
||||
if err != nil {
|
||||
return tolerations, err
|
||||
}
|
||||
}
|
||||
return tolerations, nil
|
||||
}
|
||||
|
||||
// AddOrUpdateTolerationInPod tries to add a toleration to the pod's toleration list.
|
||||
// Returns true if something was updated, false otherwise.
|
||||
func AddOrUpdateTolerationInPod(pod *api.Pod, toleration *api.Toleration) bool {
|
||||
podTolerations := pod.Spec.Tolerations
|
||||
|
||||
var newTolerations []api.Toleration
|
||||
updated := false
|
||||
for i := range podTolerations {
|
||||
if toleration.MatchToleration(&podTolerations[i]) {
|
||||
if Semantic.DeepEqual(toleration, podTolerations[i]) {
|
||||
return false
|
||||
}
|
||||
newTolerations = append(newTolerations, *toleration)
|
||||
updated = true
|
||||
continue
|
||||
}
|
||||
|
||||
newTolerations = append(newTolerations, podTolerations[i])
|
||||
}
|
||||
|
||||
if !updated {
|
||||
newTolerations = append(newTolerations, *toleration)
|
||||
}
|
||||
|
||||
pod.Spec.Tolerations = newTolerations
|
||||
return true
|
||||
}
|
||||
|
||||
// TolerationToleratesTaint checks if the toleration tolerates the taint.
|
||||
func TolerationToleratesTaint(toleration *api.Toleration, taint *api.Taint) bool {
|
||||
if len(toleration.Effect) != 0 && toleration.Effect != taint.Effect {
|
||||
return false
|
||||
}
|
||||
|
||||
if toleration.Key != taint.Key {
|
||||
return false
|
||||
}
|
||||
// TODO: Use proper defaulting when Toleration becomes a field of PodSpec
|
||||
if (len(toleration.Operator) == 0 || toleration.Operator == api.TolerationOpEqual) && toleration.Value == taint.Value {
|
||||
return true
|
||||
}
|
||||
if toleration.Operator == api.TolerationOpExists {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// TaintToleratedByTolerations checks if taint is tolerated by any of the tolerations.
|
||||
func TaintToleratedByTolerations(taint *api.Taint, tolerations []api.Toleration) bool {
|
||||
tolerated := false
|
||||
for i := range tolerations {
|
||||
if TolerationToleratesTaint(&tolerations[i], taint) {
|
||||
tolerated = true
|
||||
break
|
||||
}
|
||||
}
|
||||
return tolerated
|
||||
}
|
||||
|
||||
// GetTaintsFromNodeAnnotations gets the json serialized taints data from Pod.Annotations
|
||||
// and converts it to the []Taint type in api.
|
||||
func GetTaintsFromNodeAnnotations(annotations map[string]string) ([]api.Taint, error) {
|
||||
var taints []api.Taint
|
||||
if len(annotations) > 0 && annotations[api.TaintsAnnotationKey] != "" {
|
||||
err := json.Unmarshal([]byte(annotations[api.TaintsAnnotationKey]), &taints)
|
||||
if err != nil {
|
||||
return []api.Taint{}, err
|
||||
}
|
||||
}
|
||||
return taints, nil
|
||||
}
|
||||
|
||||
// SysctlsFromPodAnnotations parses the sysctl annotations into a slice of safe Sysctls
|
||||
// and a slice of unsafe Sysctls. This is only a convenience wrapper around
|
||||
// SysctlsFromPodAnnotation.
|
||||
func SysctlsFromPodAnnotations(a map[string]string) ([]api.Sysctl, []api.Sysctl, error) {
|
||||
safe, err := SysctlsFromPodAnnotation(a[api.SysctlsPodAnnotationKey])
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
unsafe, err := SysctlsFromPodAnnotation(a[api.UnsafeSysctlsPodAnnotationKey])
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
return safe, unsafe, nil
|
||||
}
|
||||
|
||||
// SysctlsFromPodAnnotation parses an annotation value into a slice of Sysctls.
|
||||
func SysctlsFromPodAnnotation(annotation string) ([]api.Sysctl, error) {
|
||||
if len(annotation) == 0 {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
kvs := strings.Split(annotation, ",")
|
||||
sysctls := make([]api.Sysctl, len(kvs))
|
||||
for i, kv := range kvs {
|
||||
cs := strings.Split(kv, "=")
|
||||
if len(cs) != 2 || len(cs[0]) == 0 {
|
||||
return nil, fmt.Errorf("sysctl %q not of the format sysctl_name=value", kv)
|
||||
}
|
||||
sysctls[i].Name = cs[0]
|
||||
sysctls[i].Value = cs[1]
|
||||
}
|
||||
return sysctls, nil
|
||||
}
|
||||
|
||||
// PodAnnotationsFromSysctls creates an annotation value for a slice of Sysctls.
|
||||
func PodAnnotationsFromSysctls(sysctls []api.Sysctl) string {
|
||||
if len(sysctls) == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
kvs := make([]string, len(sysctls))
|
||||
for i := range sysctls {
|
||||
kvs[i] = fmt.Sprintf("%s=%s", sysctls[i].Name, sysctls[i].Value)
|
||||
}
|
||||
return strings.Join(kvs, ",")
|
||||
}
|
||||
|
||||
// GetPersistentVolumeClass returns StorageClassName.
|
||||
func GetPersistentVolumeClass(volume *api.PersistentVolume) string {
|
||||
// Use beta annotation first
|
||||
if class, found := volume.Annotations[api.BetaStorageClassAnnotation]; found {
|
||||
return class
|
||||
}
|
||||
|
||||
return volume.Spec.StorageClassName
|
||||
}
|
||||
|
||||
// GetPersistentVolumeClaimClass returns StorageClassName. If no storage class was
|
||||
// requested, it returns "".
|
||||
func GetPersistentVolumeClaimClass(claim *api.PersistentVolumeClaim) string {
|
||||
// Use beta annotation first
|
||||
if class, found := claim.Annotations[api.BetaStorageClassAnnotation]; found {
|
||||
return class
|
||||
}
|
||||
|
||||
if claim.Spec.StorageClassName != nil {
|
||||
return *claim.Spec.StorageClassName
|
||||
}
|
||||
|
||||
return ""
|
||||
}
|
||||
|
||||
// PersistentVolumeClaimHasClass returns true if given claim has set StorageClassName field.
|
||||
func PersistentVolumeClaimHasClass(claim *api.PersistentVolumeClaim) bool {
|
||||
// Use beta annotation first
|
||||
if _, found := claim.Annotations[api.BetaStorageClassAnnotation]; found {
|
||||
return true
|
||||
}
|
||||
|
||||
if claim.Spec.StorageClassName != nil {
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// GetStorageNodeAffinityFromAnnotation gets the json serialized data from PersistentVolume.Annotations
|
||||
// and converts it to the NodeAffinity type in api.
|
||||
// TODO: update when storage node affinity graduates to beta
|
||||
func GetStorageNodeAffinityFromAnnotation(annotations map[string]string) (*api.NodeAffinity, error) {
|
||||
if len(annotations) > 0 && annotations[api.AlphaStorageNodeAffinityAnnotation] != "" {
|
||||
var affinity api.NodeAffinity
|
||||
err := json.Unmarshal([]byte(annotations[api.AlphaStorageNodeAffinityAnnotation]), &affinity)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &affinity, nil
|
||||
}
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
// Converts NodeAffinity type to Alpha annotation for use in PersistentVolumes
|
||||
// TODO: update when storage node affinity graduates to beta
|
||||
func StorageNodeAffinityToAlphaAnnotation(annotations map[string]string, affinity *api.NodeAffinity) error {
|
||||
if affinity == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
json, err := json.Marshal(*affinity)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
annotations[api.AlphaStorageNodeAffinityAnnotation] = string(json)
|
||||
return nil
|
||||
}
|
||||
490
pkg/apis/core/helper/helpers_test.go
Normal file
490
pkg/apis/core/helper/helpers_test.go
Normal file
@@ -0,0 +1,490 @@
|
||||
/*
|
||||
Copyright 2015 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 helper
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"k8s.io/apimachinery/pkg/api/resource"
|
||||
"k8s.io/apimachinery/pkg/labels"
|
||||
"k8s.io/kubernetes/pkg/api"
|
||||
)
|
||||
|
||||
func TestSemantic(t *testing.T) {
|
||||
table := []struct {
|
||||
a, b interface{}
|
||||
shouldEqual bool
|
||||
}{
|
||||
{resource.MustParse("0"), resource.Quantity{}, true},
|
||||
{resource.Quantity{}, resource.MustParse("0"), true},
|
||||
{resource.Quantity{}, resource.MustParse("1m"), false},
|
||||
{
|
||||
resource.NewQuantity(5, resource.BinarySI),
|
||||
resource.NewQuantity(5, resource.DecimalSI),
|
||||
true,
|
||||
},
|
||||
{resource.MustParse("2m"), resource.MustParse("1m"), false},
|
||||
}
|
||||
|
||||
for index, item := range table {
|
||||
if e, a := item.shouldEqual, Semantic.DeepEqual(item.a, item.b); e != a {
|
||||
t.Errorf("case[%d], expected %v, got %v.", index, e, a)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestIsStandardResource(t *testing.T) {
|
||||
testCases := []struct {
|
||||
input string
|
||||
output bool
|
||||
}{
|
||||
{"cpu", true},
|
||||
{"memory", true},
|
||||
{"disk", false},
|
||||
{"blah", false},
|
||||
{"x.y.z", false},
|
||||
{"hugepages-2Mi", true},
|
||||
}
|
||||
for i, tc := range testCases {
|
||||
if IsStandardResourceName(tc.input) != tc.output {
|
||||
t.Errorf("case[%d], input: %s, expected: %t, got: %t", i, tc.input, tc.output, !tc.output)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestIsStandardContainerResource(t *testing.T) {
|
||||
testCases := []struct {
|
||||
input string
|
||||
output bool
|
||||
}{
|
||||
{"cpu", true},
|
||||
{"memory", true},
|
||||
{"disk", false},
|
||||
{"hugepages-2Mi", true},
|
||||
}
|
||||
for i, tc := range testCases {
|
||||
if IsStandardContainerResourceName(tc.input) != tc.output {
|
||||
t.Errorf("case[%d], input: %s, expected: %t, got: %t", i, tc.input, tc.output, !tc.output)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestAddToNodeAddresses(t *testing.T) {
|
||||
testCases := []struct {
|
||||
existing []api.NodeAddress
|
||||
toAdd []api.NodeAddress
|
||||
expected []api.NodeAddress
|
||||
}{
|
||||
{
|
||||
existing: []api.NodeAddress{},
|
||||
toAdd: []api.NodeAddress{},
|
||||
expected: []api.NodeAddress{},
|
||||
},
|
||||
{
|
||||
existing: []api.NodeAddress{},
|
||||
toAdd: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeHostName, Address: "localhost"},
|
||||
},
|
||||
expected: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeHostName, Address: "localhost"},
|
||||
},
|
||||
},
|
||||
{
|
||||
existing: []api.NodeAddress{},
|
||||
toAdd: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
},
|
||||
expected: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
},
|
||||
},
|
||||
{
|
||||
existing: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeInternalIP, Address: "10.1.1.1"},
|
||||
},
|
||||
toAdd: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeHostName, Address: "localhost"},
|
||||
},
|
||||
expected: []api.NodeAddress{
|
||||
{Type: api.NodeExternalIP, Address: "1.1.1.1"},
|
||||
{Type: api.NodeInternalIP, Address: "10.1.1.1"},
|
||||
{Type: api.NodeHostName, Address: "localhost"},
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
for i, tc := range testCases {
|
||||
AddToNodeAddresses(&tc.existing, tc.toAdd...)
|
||||
if !Semantic.DeepEqual(tc.expected, tc.existing) {
|
||||
t.Errorf("case[%d], expected: %v, got: %v", i, tc.expected, tc.existing)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestGetAccessModesFromString(t *testing.T) {
|
||||
modes := GetAccessModesFromString("ROX")
|
||||
if !containsAccessMode(modes, api.ReadOnlyMany) {
|
||||
t.Errorf("Expected mode %s, but got %+v", api.ReadOnlyMany, modes)
|
||||
}
|
||||
|
||||
modes = GetAccessModesFromString("ROX,RWX")
|
||||
if !containsAccessMode(modes, api.ReadOnlyMany) {
|
||||
t.Errorf("Expected mode %s, but got %+v", api.ReadOnlyMany, modes)
|
||||
}
|
||||
if !containsAccessMode(modes, api.ReadWriteMany) {
|
||||
t.Errorf("Expected mode %s, but got %+v", api.ReadWriteMany, modes)
|
||||
}
|
||||
|
||||
modes = GetAccessModesFromString("RWO,ROX,RWX")
|
||||
if !containsAccessMode(modes, api.ReadOnlyMany) {
|
||||
t.Errorf("Expected mode %s, but got %+v", api.ReadOnlyMany, modes)
|
||||
}
|
||||
if !containsAccessMode(modes, api.ReadWriteMany) {
|
||||
t.Errorf("Expected mode %s, but got %+v", api.ReadWriteMany, modes)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRemoveDuplicateAccessModes(t *testing.T) {
|
||||
modes := []api.PersistentVolumeAccessMode{
|
||||
api.ReadWriteOnce, api.ReadOnlyMany, api.ReadOnlyMany, api.ReadOnlyMany,
|
||||
}
|
||||
modes = removeDuplicateAccessModes(modes)
|
||||
if len(modes) != 2 {
|
||||
t.Errorf("Expected 2 distinct modes in set but found %v", len(modes))
|
||||
}
|
||||
}
|
||||
|
||||
func TestNodeSelectorRequirementsAsSelector(t *testing.T) {
|
||||
matchExpressions := []api.NodeSelectorRequirement{{
|
||||
Key: "foo",
|
||||
Operator: api.NodeSelectorOpIn,
|
||||
Values: []string{"bar", "baz"},
|
||||
}}
|
||||
mustParse := func(s string) labels.Selector {
|
||||
out, e := labels.Parse(s)
|
||||
if e != nil {
|
||||
panic(e)
|
||||
}
|
||||
return out
|
||||
}
|
||||
tc := []struct {
|
||||
in []api.NodeSelectorRequirement
|
||||
out labels.Selector
|
||||
expectErr bool
|
||||
}{
|
||||
{in: nil, out: labels.Nothing()},
|
||||
{in: []api.NodeSelectorRequirement{}, out: labels.Nothing()},
|
||||
{
|
||||
in: matchExpressions,
|
||||
out: mustParse("foo in (baz,bar)"),
|
||||
},
|
||||
{
|
||||
in: []api.NodeSelectorRequirement{{
|
||||
Key: "foo",
|
||||
Operator: api.NodeSelectorOpExists,
|
||||
Values: []string{"bar", "baz"},
|
||||
}},
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
in: []api.NodeSelectorRequirement{{
|
||||
Key: "foo",
|
||||
Operator: api.NodeSelectorOpGt,
|
||||
Values: []string{"1"},
|
||||
}},
|
||||
out: mustParse("foo>1"),
|
||||
},
|
||||
{
|
||||
in: []api.NodeSelectorRequirement{{
|
||||
Key: "bar",
|
||||
Operator: api.NodeSelectorOpLt,
|
||||
Values: []string{"7"},
|
||||
}},
|
||||
out: mustParse("bar<7"),
|
||||
},
|
||||
}
|
||||
|
||||
for i, tc := range tc {
|
||||
out, err := NodeSelectorRequirementsAsSelector(tc.in)
|
||||
if err == nil && tc.expectErr {
|
||||
t.Errorf("[%v]expected error but got none.", i)
|
||||
}
|
||||
if err != nil && !tc.expectErr {
|
||||
t.Errorf("[%v]did not expect error but got: %v", i, err)
|
||||
}
|
||||
if !reflect.DeepEqual(out, tc.out) {
|
||||
t.Errorf("[%v]expected:\n\t%+v\nbut got:\n\t%+v", i, tc.out, out)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestSysctlsFromPodAnnotation(t *testing.T) {
|
||||
type Test struct {
|
||||
annotation string
|
||||
expectValue []api.Sysctl
|
||||
expectErr bool
|
||||
}
|
||||
for i, test := range []Test{
|
||||
{
|
||||
annotation: "",
|
||||
expectValue: nil,
|
||||
},
|
||||
{
|
||||
annotation: "foo.bar",
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
annotation: "=123",
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
annotation: "foo.bar=",
|
||||
expectValue: []api.Sysctl{{Name: "foo.bar", Value: ""}},
|
||||
},
|
||||
{
|
||||
annotation: "foo.bar=42",
|
||||
expectValue: []api.Sysctl{{Name: "foo.bar", Value: "42"}},
|
||||
},
|
||||
{
|
||||
annotation: "foo.bar=42,",
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
annotation: "foo.bar=42,abc.def=1",
|
||||
expectValue: []api.Sysctl{{Name: "foo.bar", Value: "42"}, {Name: "abc.def", Value: "1"}},
|
||||
},
|
||||
} {
|
||||
sysctls, err := SysctlsFromPodAnnotation(test.annotation)
|
||||
if test.expectErr && err == nil {
|
||||
t.Errorf("[%v]expected error but got none", i)
|
||||
} else if !test.expectErr && err != nil {
|
||||
t.Errorf("[%v]did not expect error but got: %v", i, err)
|
||||
} else if !reflect.DeepEqual(sysctls, test.expectValue) {
|
||||
t.Errorf("[%v]expect value %v but got %v", i, test.expectValue, sysctls)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: remove when alpha support for topology constraints is removed
|
||||
func TestGetNodeAffinityFromAnnotations(t *testing.T) {
|
||||
testCases := []struct {
|
||||
annotations map[string]string
|
||||
expectErr bool
|
||||
}{
|
||||
{
|
||||
annotations: nil,
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
annotations: map[string]string{},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
annotations: map[string]string{
|
||||
api.AlphaStorageNodeAffinityAnnotation: `{
|
||||
"requiredDuringSchedulingIgnoredDuringExecution": {
|
||||
"nodeSelectorTerms": [
|
||||
{ "matchExpressions": [
|
||||
{ "key": "test-key1",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
},
|
||||
{ "key": "test-key2",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
}
|
||||
]}
|
||||
]}
|
||||
}`,
|
||||
},
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
annotations: map[string]string{
|
||||
api.AlphaStorageNodeAffinityAnnotation: `[{
|
||||
"requiredDuringSchedulingIgnoredDuringExecution": {
|
||||
"nodeSelectorTerms": [
|
||||
{ "matchExpressions": [
|
||||
{ "key": "test-key1",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
},
|
||||
{ "key": "test-key2",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
}
|
||||
]}
|
||||
]}
|
||||
}]`,
|
||||
},
|
||||
expectErr: true,
|
||||
},
|
||||
{
|
||||
annotations: map[string]string{
|
||||
api.AlphaStorageNodeAffinityAnnotation: `{
|
||||
"requiredDuringSchedulingIgnoredDuringExecution": {
|
||||
"nodeSelectorTerms":
|
||||
"matchExpressions": [
|
||||
{ "key": "test-key1",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
},
|
||||
{ "key": "test-key2",
|
||||
"operator": "In",
|
||||
"values": ["test-value1", "test-value2"]
|
||||
}
|
||||
]}
|
||||
}
|
||||
}`,
|
||||
},
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
|
||||
for i, tc := range testCases {
|
||||
_, err := GetStorageNodeAffinityFromAnnotation(tc.annotations)
|
||||
if err == nil && tc.expectErr {
|
||||
t.Errorf("[%v]expected error but got none.", i)
|
||||
}
|
||||
if err != nil && !tc.expectErr {
|
||||
t.Errorf("[%v]did not expect error but got: %v", i, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestIsHugePageResourceName(t *testing.T) {
|
||||
testCases := []struct {
|
||||
name api.ResourceName
|
||||
result bool
|
||||
}{
|
||||
{
|
||||
name: api.ResourceName("hugepages-2Mi"),
|
||||
result: true,
|
||||
},
|
||||
{
|
||||
name: api.ResourceName("hugepages-1Gi"),
|
||||
result: true,
|
||||
},
|
||||
{
|
||||
name: api.ResourceName("cpu"),
|
||||
result: false,
|
||||
},
|
||||
{
|
||||
name: api.ResourceName("memory"),
|
||||
result: false,
|
||||
},
|
||||
}
|
||||
for _, testCase := range testCases {
|
||||
if testCase.result != IsHugePageResourceName(testCase.name) {
|
||||
t.Errorf("resource: %v expected result: %v", testCase.name, testCase.result)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestHugePageResourceName(t *testing.T) {
|
||||
testCases := []struct {
|
||||
pageSize resource.Quantity
|
||||
name api.ResourceName
|
||||
}{
|
||||
{
|
||||
pageSize: resource.MustParse("2Mi"),
|
||||
name: api.ResourceName("hugepages-2Mi"),
|
||||
},
|
||||
{
|
||||
pageSize: resource.MustParse("1Gi"),
|
||||
name: api.ResourceName("hugepages-1Gi"),
|
||||
},
|
||||
{
|
||||
// verify we do not regress our canonical representation
|
||||
pageSize: *resource.NewQuantity(int64(2097152), resource.BinarySI),
|
||||
name: api.ResourceName("hugepages-2Mi"),
|
||||
},
|
||||
}
|
||||
for _, testCase := range testCases {
|
||||
if result := HugePageResourceName(testCase.pageSize); result != testCase.name {
|
||||
t.Errorf("pageSize: %v, expected: %v, but got: %v", testCase.pageSize.String(), testCase.name, result.String())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestHugePageSizeFromResourceName(t *testing.T) {
|
||||
testCases := []struct {
|
||||
name api.ResourceName
|
||||
expectErr bool
|
||||
pageSize resource.Quantity
|
||||
}{
|
||||
{
|
||||
name: api.ResourceName("hugepages-2Mi"),
|
||||
pageSize: resource.MustParse("2Mi"),
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: api.ResourceName("hugepages-1Gi"),
|
||||
pageSize: resource.MustParse("1Gi"),
|
||||
expectErr: false,
|
||||
},
|
||||
{
|
||||
name: api.ResourceName("hugepages-bad"),
|
||||
expectErr: true,
|
||||
},
|
||||
}
|
||||
for _, testCase := range testCases {
|
||||
value, err := HugePageSizeFromResourceName(testCase.name)
|
||||
if testCase.expectErr && err == nil {
|
||||
t.Errorf("Expected an error for %v", testCase.name)
|
||||
} else if !testCase.expectErr && err != nil {
|
||||
t.Errorf("Unexpected error for %v, got %v", testCase.name, err)
|
||||
} else if testCase.pageSize.Value() != value.Value() {
|
||||
t.Errorf("Unexpected pageSize for resource %v got %v", testCase.name, value.String())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestIsOvercommitAllowed(t *testing.T) {
|
||||
testCases := []struct {
|
||||
name api.ResourceName
|
||||
allowed bool
|
||||
}{
|
||||
{
|
||||
name: api.ResourceCPU,
|
||||
allowed: true,
|
||||
},
|
||||
{
|
||||
name: api.ResourceMemory,
|
||||
allowed: true,
|
||||
},
|
||||
{
|
||||
name: api.ResourceNvidiaGPU,
|
||||
allowed: false,
|
||||
},
|
||||
{
|
||||
name: HugePageResourceName(resource.MustParse("2Mi")),
|
||||
allowed: false,
|
||||
},
|
||||
}
|
||||
for _, testCase := range testCases {
|
||||
if testCase.allowed != IsOvercommitAllowed(testCase.name) {
|
||||
t.Errorf("Unexpected result for %v", testCase.name)
|
||||
}
|
||||
}
|
||||
}
|
||||
31
pkg/apis/core/helper/qos/BUILD
Normal file
31
pkg/apis/core/helper/qos/BUILD
Normal file
@@ -0,0 +1,31 @@
|
||||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
load(
|
||||
"@io_bazel_rules_go//go:def.bzl",
|
||||
"go_library",
|
||||
)
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = ["qos.go"],
|
||||
importpath = "k8s.io/kubernetes/pkg/api/helper/qos",
|
||||
deps = [
|
||||
"//pkg/api:go_default_library",
|
||||
"//pkg/api/helper:go_default_library",
|
||||
"//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
|
||||
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
|
||||
],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [":package-srcs"],
|
||||
tags = ["automanaged"],
|
||||
)
|
||||
97
pkg/apis/core/helper/qos/qos.go
Normal file
97
pkg/apis/core/helper/qos/qos.go
Normal file
@@ -0,0 +1,97 @@
|
||||
/*
|
||||
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.
|
||||
*/
|
||||
|
||||
// NOTE: DO NOT use those helper functions through client-go, the
|
||||
// package path will be changed in the future.
|
||||
package qos
|
||||
|
||||
import (
|
||||
"k8s.io/apimachinery/pkg/api/resource"
|
||||
"k8s.io/apimachinery/pkg/util/sets"
|
||||
"k8s.io/kubernetes/pkg/api"
|
||||
"k8s.io/kubernetes/pkg/api/helper"
|
||||
)
|
||||
|
||||
func isSupportedQoSComputeResource(name api.ResourceName) bool {
|
||||
supportedQoSComputeResources := sets.NewString(string(api.ResourceCPU), string(api.ResourceMemory))
|
||||
return supportedQoSComputeResources.Has(string(name)) || helper.IsHugePageResourceName(name)
|
||||
}
|
||||
|
||||
// GetPodQOS returns the QoS class of a pod.
|
||||
// A pod is besteffort if none of its containers have specified any requests or limits.
|
||||
// A pod is guaranteed only when requests and limits are specified for all the containers and they are equal.
|
||||
// A pod is burstable if limits and requests do not match across all containers.
|
||||
func GetPodQOS(pod *api.Pod) api.PodQOSClass {
|
||||
requests := api.ResourceList{}
|
||||
limits := api.ResourceList{}
|
||||
zeroQuantity := resource.MustParse("0")
|
||||
isGuaranteed := true
|
||||
for _, container := range pod.Spec.Containers {
|
||||
// process requests
|
||||
for name, quantity := range container.Resources.Requests {
|
||||
if !isSupportedQoSComputeResource(name) {
|
||||
continue
|
||||
}
|
||||
if quantity.Cmp(zeroQuantity) == 1 {
|
||||
delta := quantity.Copy()
|
||||
if _, exists := requests[name]; !exists {
|
||||
requests[name] = *delta
|
||||
} else {
|
||||
delta.Add(requests[name])
|
||||
requests[name] = *delta
|
||||
}
|
||||
}
|
||||
}
|
||||
// process limits
|
||||
qosLimitsFound := sets.NewString()
|
||||
for name, quantity := range container.Resources.Limits {
|
||||
if !isSupportedQoSComputeResource(name) {
|
||||
continue
|
||||
}
|
||||
if quantity.Cmp(zeroQuantity) == 1 {
|
||||
qosLimitsFound.Insert(string(name))
|
||||
delta := quantity.Copy()
|
||||
if _, exists := limits[name]; !exists {
|
||||
limits[name] = *delta
|
||||
} else {
|
||||
delta.Add(limits[name])
|
||||
limits[name] = *delta
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if !qosLimitsFound.HasAll(string(api.ResourceMemory), string(api.ResourceCPU)) {
|
||||
isGuaranteed = false
|
||||
}
|
||||
}
|
||||
if len(requests) == 0 && len(limits) == 0 {
|
||||
return api.PodQOSBestEffort
|
||||
}
|
||||
// Check is requests match limits for all resources.
|
||||
if isGuaranteed {
|
||||
for name, req := range requests {
|
||||
if lim, exists := limits[name]; !exists || lim.Cmp(req) != 0 {
|
||||
isGuaranteed = false
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
if isGuaranteed &&
|
||||
len(requests) == len(limits) {
|
||||
return api.PodQOSGuaranteed
|
||||
}
|
||||
return api.PodQOSBurstable
|
||||
}
|
||||
Reference in New Issue
Block a user