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node authz/ad externalization

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This commit is contained in:
yue9944882
2018-08-08 20:41:00 +08:00
parent db9545e69e
commit bc1fb1f7e8
11 changed files with 174 additions and 161 deletions
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5
plugin/pkg/auth/authorizer/node/BUILD
View File

@@ -19,6 +19,7 @@ go_test(
"//pkg/auth/nodeidentifier:go_default_library",
"//pkg/features:go_default_library",
"//plugin/pkg/auth/authorizer/rbac/bootstrappolicy:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/api/storage/v1beta1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
@@ -40,18 +41,20 @@ go_library(
importpath = "k8s.io/kubernetes/plugin/pkg/auth/authorizer/node",
deps = [
"//pkg/api/persistentvolume:go_default_library",
"//pkg/api/pod:go_default_library",
"//pkg/api/v1/pod:go_default_library",
"//pkg/apis/core:go_default_library",
"//pkg/apis/storage:go_default_library",
"//pkg/auth/nodeidentifier:go_default_library",
"//pkg/client/informers/informers_generated/internalversion/core/internalversion:go_default_library",
"//pkg/features:go_default_library",
"//plugin/pkg/auth/authorizer/rbac:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/api/rbac/v1:go_default_library",
"//staging/src/k8s.io/api/storage/v1beta1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
"//staging/src/k8s.io/client-go/informers/core/v1:go_default_library",
"//staging/src/k8s.io/client-go/informers/storage/v1beta1:go_default_library",
"//staging/src/k8s.io/client-go/tools/cache:go_default_library",
"//third_party/forked/gonum/graph:go_default_library",

5
plugin/pkg/auth/authorizer/node/graph.go
View File

@@ -19,8 +19,9 @@ package node
import (
"sync"
corev1 "k8s.io/api/core/v1"
pvutil "k8s.io/kubernetes/pkg/api/persistentvolume"
podutil "k8s.io/kubernetes/pkg/api/pod"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/third_party/forked/gonum/graph"
"k8s.io/kubernetes/third_party/forked/gonum/graph/simple"
@@ -305,7 +306,7 @@ func (g *Graph) recomputeDestinationIndex_locked(n graph.Node) {
// configmap -> pod
// pvc -> pod
// svcacct -> pod
func (g *Graph) AddPod(pod *api.Pod) {
func (g *Graph) AddPod(pod *corev1.Pod) {
g.lock.Lock()
defer g.lock.Unlock()

10
plugin/pkg/auth/authorizer/node/graph_populator.go
View File

@@ -20,8 +20,10 @@ import (
"fmt"
"github.com/golang/glog"
corev1 "k8s.io/api/core/v1"
storagev1beta1 "k8s.io/api/storage/v1beta1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
corev1informers "k8s.io/client-go/informers/core/v1"
storageinformers "k8s.io/client-go/informers/storage/v1beta1"
"k8s.io/client-go/tools/cache"
api "k8s.io/kubernetes/pkg/apis/core"
@@ -36,7 +38,7 @@ type graphPopulator struct {
func AddGraphEventHandlers(
graph *Graph,
nodes coreinformers.NodeInformer,
pods coreinformers.PodInformer,
pods corev1informers.PodInformer,
pvs coreinformers.PersistentVolumeInformer,
attachments storageinformers.VolumeAttachmentInformer,
) {
@@ -134,13 +136,13 @@ func (g *graphPopulator) addPod(obj interface{}) {
}
func (g *graphPopulator) updatePod(oldObj, obj interface{}) {
pod := obj.(*api.Pod)
pod := obj.(*corev1.Pod)
if len(pod.Spec.NodeName) == 0 {
// No node assigned
glog.V(5).Infof("updatePod %s/%s, no node", pod.Namespace, pod.Name)
return
}
if oldPod, ok := oldObj.(*api.Pod); ok && oldPod != nil {
if oldPod, ok := oldObj.(*corev1.Pod); ok && oldPod != nil {
if (pod.Spec.NodeName == oldPod.Spec.NodeName) && (pod.UID == oldPod.UID) {
// Node and uid are unchanged, all object references in the pod spec are immutable
glog.V(5).Infof("updatePod %s/%s, node unchanged", pod.Namespace, pod.Name)
@@ -155,7 +157,7 @@ func (g *graphPopulator) deletePod(obj interface{}) {
if tombstone, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = tombstone.Obj
}
pod, ok := obj.(*api.Pod)
pod, ok := obj.(*corev1.Pod)
if !ok {
glog.Infof("unexpected type %T", obj)
return

71
plugin/pkg/auth/authorizer/node/node_authorizer_test.go
View File

@@ -26,6 +26,7 @@ import (
"os"
corev1 "k8s.io/api/core/v1"
storagev1beta1 "k8s.io/api/storage/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
@@ -255,34 +256,34 @@ func TestAuthorizerSharedResources(t *testing.T) {
node2 := &user.DefaultInfo{Name: "system:node:node2", Groups: []string{"system:nodes"}}
node3 := &user.DefaultInfo{Name: "system:node:node3", Groups: []string{"system:nodes"}}
g.AddPod(&api.Pod{
g.AddPod(&corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: "pod1-node1", Namespace: "ns1"},
Spec: api.PodSpec{
Spec: corev1.PodSpec{
NodeName: "node1",
Volumes: []api.Volume{
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "node1-only"}}},
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "node1-node2-only"}}},
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "shared-all"}}},
Volumes: []corev1.Volume{
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "node1-only"}}},
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "node1-node2-only"}}},
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "shared-all"}}},
},
},
})
g.AddPod(&api.Pod{
g.AddPod(&corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: "pod2-node2", Namespace: "ns1"},
Spec: api.PodSpec{
Spec: corev1.PodSpec{
NodeName: "node2",
Volumes: []api.Volume{
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "node1-node2-only"}}},
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "shared-all"}}},
Volumes: []corev1.Volume{
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "node1-node2-only"}}},
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "shared-all"}}},
},
},
})
pod3 := &api.Pod{
pod3 := &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: "pod3-node3", Namespace: "ns1"},
Spec: api.PodSpec{
Spec: corev1.PodSpec{
NodeName: "node3",
Volumes: []api.Volume{
{VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "shared-all"}}},
Volumes: []corev1.Volume{
{VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "shared-all"}}},
},
},
}
@@ -615,13 +616,13 @@ func BenchmarkAuthorization(b *testing.B) {
for shouldWrite == 1 {
go func() {
start := time.Now()
authz.graph.AddPod(&api.Pod{
authz.graph.AddPod(&corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: "testwrite", Namespace: "ns0"},
Spec: api.PodSpec{
Spec: corev1.PodSpec{
NodeName: "node0",
ServiceAccountName: "default",
Volumes: []api.Volume{
{Name: "token", VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "secret0-shared"}}},
Volumes: []corev1.Volume{
{Name: "token", VolumeSource: corev1.VolumeSource{Secret: &corev1.SecretVolumeSource{SecretName: "secret0-shared"}}},
},
},
})
@@ -683,7 +684,7 @@ func BenchmarkAuthorization(b *testing.B) {
}
}
func populate(graph *Graph, nodes []*api.Node, pods []*api.Pod, pvs []*api.PersistentVolume, attachments []*storagev1beta1.VolumeAttachment) {
func populate(graph *Graph, nodes []*api.Node, pods []*corev1.Pod, pvs []*api.PersistentVolume, attachments []*storagev1beta1.VolumeAttachment) {
p := &graphPopulator{}
p.graph = graph
for _, node := range nodes {
@@ -704,40 +705,40 @@ func populate(graph *Graph, nodes []*api.Node, pods []*api.Pod, pvs []*api.Persi
// the secret/configmap/pvc/node references in the pod and pv objects are named to indicate the connections between the objects.
// for example, secret0-pod0-node0 is a secret referenced by pod0 which is bound to node0.
// when populated into the graph, the node authorizer should allow node0 to access that secret, but not node1.
func generate(opts sampleDataOpts) ([]*api.Node, []*api.Pod, []*api.PersistentVolume, []*storagev1beta1.VolumeAttachment) {
func generate(opts sampleDataOpts) ([]*api.Node, []*corev1.Pod, []*api.PersistentVolume, []*storagev1beta1.VolumeAttachment) {
nodes := make([]*api.Node, 0, opts.nodes)
pods := make([]*api.Pod, 0, opts.nodes*opts.podsPerNode)
pods := make([]*corev1.Pod, 0, opts.nodes*opts.podsPerNode)
pvs := make([]*api.PersistentVolume, 0, (opts.nodes*opts.podsPerNode*opts.uniquePVCsPerPod)+(opts.sharedPVCsPerPod*opts.namespaces))
attachments := make([]*storagev1beta1.VolumeAttachment, 0, opts.nodes*opts.attachmentsPerNode)
for n := 0; n < opts.nodes; n++ {
nodeName := fmt.Sprintf("node%d", n)
for p := 0; p < opts.podsPerNode; p++ {
pod := &api.Pod{}
pod := &corev1.Pod{}
pod.Namespace = fmt.Sprintf("ns%d", p%opts.namespaces)
pod.Name = fmt.Sprintf("pod%d-%s", p, nodeName)
pod.Spec.NodeName = nodeName
pod.Spec.ServiceAccountName = fmt.Sprintf("svcacct%d-%s", p, nodeName)
for i := 0; i < opts.uniqueSecretsPerPod; i++ {
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
Secret: &api.SecretVolumeSource{SecretName: fmt.Sprintf("secret%d-%s", i, pod.Name)},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{SecretName: fmt.Sprintf("secret%d-%s", i, pod.Name)},
}})
}
for i := 0; i < opts.sharedSecretsPerPod; i++ {
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
Secret: &api.SecretVolumeSource{SecretName: fmt.Sprintf("secret%d-shared", i)},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{SecretName: fmt.Sprintf("secret%d-shared", i)},
}})
}
for i := 0; i < opts.uniqueConfigMapsPerPod; i++ {
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
ConfigMap: &api.ConfigMapVolumeSource{LocalObjectReference: api.LocalObjectReference{Name: fmt.Sprintf("configmap%d-%s", i, pod.Name)}},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
ConfigMap: &corev1.ConfigMapVolumeSource{LocalObjectReference: corev1.LocalObjectReference{Name: fmt.Sprintf("configmap%d-%s", i, pod.Name)}},
}})
}
for i := 0; i < opts.sharedConfigMapsPerPod; i++ {
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
ConfigMap: &api.ConfigMapVolumeSource{LocalObjectReference: api.LocalObjectReference{Name: fmt.Sprintf("configmap%d-shared", i)}},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
ConfigMap: &corev1.ConfigMapVolumeSource{LocalObjectReference: corev1.LocalObjectReference{Name: fmt.Sprintf("configmap%d-shared", i)}},
}})
}
@@ -748,8 +749,8 @@ func generate(opts sampleDataOpts) ([]*api.Node, []*api.Pod, []*api.PersistentVo
pv.Spec.ClaimRef = &api.ObjectReference{Name: fmt.Sprintf("pvc%d-%s", i, pod.Name), Namespace: pod.Namespace}
pvs = append(pvs, pv)
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{ClaimName: pv.Spec.ClaimRef.Name},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{ClaimName: pv.Spec.ClaimRef.Name},
}})
}
for i := 0; i < opts.sharedPVCsPerPod; i++ {
@@ -759,8 +760,8 @@ func generate(opts sampleDataOpts) ([]*api.Node, []*api.Pod, []*api.PersistentVo
pv.Spec.ClaimRef = &api.ObjectReference{Name: fmt.Sprintf("pvc%d-shared", i), Namespace: pod.Namespace}
pvs = append(pvs, pv)
pod.Spec.Volumes = append(pod.Spec.Volumes, api.Volume{VolumeSource: api.VolumeSource{
PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{ClaimName: pv.Spec.ClaimRef.Name},
pod.Spec.Volumes = append(pod.Spec.Volumes, corev1.Volume{VolumeSource: corev1.VolumeSource{
PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{ClaimName: pv.Spec.ClaimRef.Name},
}})
}