forked from barak/tarpoon
Add glide.yaml and vendor deps
This commit is contained in:
parent
db918f12ad
commit
5b3d5e81bd
18880 changed files with 5166045 additions and 1 deletions
41
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/BUILD
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41
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/BUILD
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package(default_visibility = ["//visibility:public"])
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licenses(["notice"])
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load(
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"@io_bazel_rules_go//go:def.bzl",
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"go_binary",
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"go_library",
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"go_test",
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"cgo_library",
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)
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go_library(
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name = "go_default_library",
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srcs = [
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"admission.go",
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"doc.go",
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],
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tags = ["automanaged"],
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deps = [
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"//pkg/admission:go_default_library",
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"//pkg/api:go_default_library",
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"//pkg/api/errors:go_default_library",
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"//pkg/apis/meta/v1:go_default_library",
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"//pkg/client/clientset_generated/internalclientset:go_default_library",
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"//vendor:github.com/golang/glog",
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],
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)
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go_test(
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name = "go_default_test",
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srcs = ["admission_test.go"],
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library = "go_default_library",
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tags = ["automanaged"],
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deps = [
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"//pkg/admission:go_default_library",
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"//pkg/api:go_default_library",
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"//pkg/apis/meta/v1:go_default_library",
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"//pkg/runtime:go_default_library",
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],
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)
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83
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/admission.go
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vendored
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83
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/admission.go
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/*
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Copyright 2016 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 antiaffinity
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import (
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"fmt"
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"io"
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/admission"
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"k8s.io/kubernetes/pkg/api"
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apierrors "k8s.io/kubernetes/pkg/api/errors"
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metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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)
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func init() {
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admission.RegisterPlugin("LimitPodHardAntiAffinityTopology", func(client clientset.Interface, config io.Reader) (admission.Interface, error) {
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return NewInterPodAntiAffinity(client), nil
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})
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}
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// plugin contains the client used by the admission controller
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type plugin struct {
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*admission.Handler
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client clientset.Interface
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}
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// NewInterPodAntiAffinity creates a new instance of the LimitPodHardAntiAffinityTopology admission controller
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func NewInterPodAntiAffinity(client clientset.Interface) admission.Interface {
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return &plugin{
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Handler: admission.NewHandler(admission.Create, admission.Update),
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client: client,
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}
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}
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// Admit will deny any pod that defines AntiAffinity topology key other than metav1.LabelHostname i.e. "kubernetes.io/hostname"
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// in requiredDuringSchedulingRequiredDuringExecution and requiredDuringSchedulingIgnoredDuringExecution.
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func (p *plugin) Admit(attributes admission.Attributes) (err error) {
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// Ignore all calls to subresources or resources other than pods.
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if len(attributes.GetSubresource()) != 0 || attributes.GetResource().GroupResource() != api.Resource("pods") {
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return nil
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}
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pod, ok := attributes.GetObject().(*api.Pod)
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if !ok {
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return apierrors.NewBadRequest("Resource was marked with kind Pod but was unable to be converted")
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}
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affinity, err := api.GetAffinityFromPodAnnotations(pod.Annotations)
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if err != nil {
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glog.V(5).Infof("Invalid Affinity detected, but we will leave handling of this to validation phase")
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return nil
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}
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if affinity != nil && affinity.PodAntiAffinity != nil {
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var podAntiAffinityTerms []api.PodAffinityTerm
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if len(affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution) != 0 {
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podAntiAffinityTerms = affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution
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}
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// TODO: Uncomment this block when implement RequiredDuringSchedulingRequiredDuringExecution.
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//if len(affinity.PodAntiAffinity.RequiredDuringSchedulingRequiredDuringExecution) != 0 {
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// podAntiAffinityTerms = append(podAntiAffinityTerms, affinity.PodAntiAffinity.RequiredDuringSchedulingRequiredDuringExecution...)
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//}
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for _, v := range podAntiAffinityTerms {
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if v.TopologyKey != metav1.LabelHostname {
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return apierrors.NewForbidden(attributes.GetResource().GroupResource(), pod.Name, fmt.Errorf("affinity.PodAntiAffinity.RequiredDuringScheduling has TopologyKey %v but only key %v is allowed", v.TopologyKey, metav1.LabelHostname))
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}
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}
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}
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return nil
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}
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299
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/admission_test.go
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vendored
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299
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/admission_test.go
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/*
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Copyright 2016 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 antiaffinity
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import (
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"testing"
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"k8s.io/kubernetes/pkg/admission"
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"k8s.io/kubernetes/pkg/api"
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metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/runtime"
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)
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// ensures the hard PodAntiAffinity is denied if it defines TopologyKey other than kubernetes.io/hostname.
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func TestInterPodAffinityAdmission(t *testing.T) {
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handler := NewInterPodAntiAffinity(nil)
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pod := api.Pod{
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Spec: api.PodSpec{},
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}
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tests := []struct {
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affinity map[string]string
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errorExpected bool
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}{
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// empty affinity its success.
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{
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affinity: map[string]string{},
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errorExpected: false,
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},
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// what ever topologyKey in preferredDuringSchedulingIgnoredDuringExecution, the admission should success.
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"preferredDuringSchedulingIgnoredDuringExecution": [{
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"weight": 5,
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"podAffinityTerm": {
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces": [],
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"topologyKey": "az"
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}
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}]
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}}`,
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},
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errorExpected: false,
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},
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// valid topologyKey in requiredDuringSchedulingIgnoredDuringExecution,
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// plus any topologyKey in preferredDuringSchedulingIgnoredDuringExecution, then admission success.
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"preferredDuringSchedulingIgnoredDuringExecution": [{
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"weight": 5,
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"podAffinityTerm": {
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces": [],
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"topologyKey": "az"
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}
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}],
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"requiredDuringSchedulingIgnoredDuringExecution": [{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces": [],
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"topologyKey": "` + metav1.LabelHostname + `"
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}]
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}}`,
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},
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errorExpected: false,
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},
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// valid topologyKey in requiredDuringSchedulingIgnoredDuringExecution then admission success.
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"requiredDuringSchedulingIgnoredDuringExecution": [{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces":[],
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"topologyKey": "` + metav1.LabelHostname + `"
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}]
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}}`,
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},
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errorExpected: false,
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},
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// invalid topologyKey in requiredDuringSchedulingIgnoredDuringExecution then admission fails.
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"requiredDuringSchedulingIgnoredDuringExecution": [{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces":[],
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"topologyKey": " zone "
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}]
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}}`,
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},
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errorExpected: true,
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},
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// invalid topologyKey in requiredDuringSchedulingRequiredDuringExecution then admission fails.
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// TODO: Uncomment this block when implement RequiredDuringSchedulingRequiredDuringExecution.
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// {
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// affinity: map[string]string{
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// api.AffinityAnnotationKey: `
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// {"podAntiAffinity": {
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// "requiredDuringSchedulingRequiredDuringExecution": [{
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// "labelSelector": {
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// "matchExpressions": [{
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// "key": "security",
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// "operator": "In",
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// "values":["S2"]
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// }]
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// },
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// "namespaces":[],
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// "topologyKey": " zone "
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// }]
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// }}`,
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// },
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// errorExpected: true,
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// }
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// list of requiredDuringSchedulingIgnoredDuringExecution middle element topologyKey is not valid.
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"requiredDuringSchedulingIgnoredDuringExecution": [{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces":[],
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"topologyKey": "` + metav1.LabelHostname + `"
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},
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{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces":[],
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"topologyKey": " zone "
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},
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{
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"labelSelector": {
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"matchExpressions": [{
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"key": "security",
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"operator": "In",
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"values":["S2"]
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}]
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},
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"namespaces": [],
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"topologyKey": "` + metav1.LabelHostname + `"
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}]
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}}`,
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},
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errorExpected: true,
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},
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{
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affinity: map[string]string{
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api.AffinityAnnotationKey: `
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{"podAntiAffinity": {
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"thisIsAInvalidAffinity": [{}
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}}`,
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},
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// however, we should not get error here
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errorExpected: false,
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},
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}
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for _, test := range tests {
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pod.ObjectMeta.Annotations = test.affinity
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err := handler.Admit(admission.NewAttributesRecord(&pod, nil, api.Kind("Pod").WithVersion("version"), "foo", "name", api.Resource("pods").WithVersion("version"), "", "ignored", nil))
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if test.errorExpected && err == nil {
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t.Errorf("Expected error for Anti Affinity %+v but did not get an error", test.affinity)
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}
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if !test.errorExpected && err != nil {
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t.Errorf("Unexpected error %v for AntiAffinity %+v", err, test.affinity)
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}
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}
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}
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func TestHandles(t *testing.T) {
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handler := NewInterPodAntiAffinity(nil)
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tests := map[admission.Operation]bool{
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admission.Update: true,
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admission.Create: true,
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admission.Delete: false,
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admission.Connect: false,
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}
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for op, expected := range tests {
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result := handler.Handles(op)
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if result != expected {
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t.Errorf("Unexpected result for operation %s: %v\n", op, result)
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}
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}
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}
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// TestOtherResources ensures that this admission controller is a no-op for other resources,
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// subresources, and non-pods.
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func TestOtherResources(t *testing.T) {
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namespace := "testnamespace"
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name := "testname"
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pod := &api.Pod{
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ObjectMeta: api.ObjectMeta{Name: name, Namespace: namespace},
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}
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tests := []struct {
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name string
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kind string
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resource string
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subresource string
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object runtime.Object
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expectError bool
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}{
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{
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name: "non-pod resource",
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kind: "Foo",
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resource: "foos",
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object: pod,
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},
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{
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name: "pod subresource",
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kind: "Pod",
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resource: "pods",
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subresource: "eviction",
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object: pod,
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},
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{
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name: "non-pod object",
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kind: "Pod",
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resource: "pods",
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object: &api.Service{},
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expectError: true,
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},
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}
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for _, tc := range tests {
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handler := &plugin{}
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err := handler.Admit(admission.NewAttributesRecord(tc.object, nil, api.Kind(tc.kind).WithVersion("version"), namespace, name, api.Resource(tc.resource).WithVersion("version"), tc.subresource, admission.Create, nil))
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if tc.expectError {
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if err == nil {
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t.Errorf("%s: unexpected nil error", tc.name)
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}
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continue
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}
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if err != nil {
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t.Errorf("%s: unexpected error: %v", tc.name, err)
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continue
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}
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}
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}
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28
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/doc.go
generated
vendored
Normal file
28
vendor/k8s.io/kubernetes/plugin/pkg/admission/antiaffinity/doc.go
generated
vendored
Normal file
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@ -0,0 +1,28 @@
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/*
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Copyright 2016 The Kubernetes Authors.
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||||
|
||||
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.
|
||||
*/
|
||||
|
||||
// LimitPodHardAntiAffinityTopology admission controller rejects any pod
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// that specifies "hard" (RequiredDuringScheduling) anti-affinity
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// with a TopologyKey other than metav1.LabelHostname.
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// Because anti-affinity is symmetric, without this admission controller,
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// a user could maliciously or accidentally specify that their pod (once it has scheduled)
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// should block other pods from scheduling into the same zone or some other large topology,
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// essentially DoSing the cluster.
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// In the future we will address this problem more fully by using quota and priority,
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// but for now this admission controller provides a simple protection,
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// on the assumption that the only legitimate use of hard pod anti-affinity
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// is to exclude other pods from the same node.
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package antiaffinity // import "k8s.io/kubernetes/plugin/pkg/admission/antiaffinity"
|
||||
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