mirror of https://github.com/k3s-io/k3s
380 lines
12 KiB
Go
380 lines
12 KiB
Go
/*
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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 validation
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import (
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"strings"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/apps"
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metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
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)
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func TestValidateStatefulSet(t *testing.T) {
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validLabels := map[string]string{"a": "b"}
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validPodTemplate := api.PodTemplate{
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: validLabels,
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},
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
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},
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},
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}
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invalidLabels := map[string]string{"NoUppercaseOrSpecialCharsLike=Equals": "b"}
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invalidPodTemplate := api.PodTemplate{
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Template: api.PodTemplateSpec{
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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},
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ObjectMeta: api.ObjectMeta{
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Labels: invalidLabels,
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},
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},
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}
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successCases := []apps.StatefulSet{
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{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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{
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ObjectMeta: api.ObjectMeta{Name: "abc-123", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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}
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for _, successCase := range successCases {
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if errs := ValidateStatefulSet(&successCase); len(errs) != 0 {
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t.Errorf("expected success: %v", errs)
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}
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}
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errorCases := map[string]apps.StatefulSet{
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"zero-length ID": {
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ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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"missing-namespace": {
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ObjectMeta: api.ObjectMeta{Name: "abc-123"},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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"empty selector": {
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Template: validPodTemplate.Template,
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},
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},
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"selector_doesnt_match": {
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}},
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Template: validPodTemplate.Template,
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},
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},
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"invalid manifest": {
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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},
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},
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"negative_replicas": {
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: -1,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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},
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},
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"invalid_label": {
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ObjectMeta: api.ObjectMeta{
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Name: "abc-123",
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Namespace: api.NamespaceDefault,
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Labels: map[string]string{
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"NoUppercaseOrSpecialCharsLike=Equals": "bar",
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},
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},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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"invalid_label 2": {
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ObjectMeta: api.ObjectMeta{
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Name: "abc-123",
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Namespace: api.NamespaceDefault,
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Labels: map[string]string{
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"NoUppercaseOrSpecialCharsLike=Equals": "bar",
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},
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},
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Spec: apps.StatefulSetSpec{
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Template: invalidPodTemplate.Template,
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},
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},
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"invalid_annotation": {
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ObjectMeta: api.ObjectMeta{
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Name: "abc-123",
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Namespace: api.NamespaceDefault,
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Annotations: map[string]string{
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"NoUppercaseOrSpecialCharsLike=Equals": "bar",
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},
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},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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"invalid restart policy 1": {
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ObjectMeta: api.ObjectMeta{
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Name: "abc-123",
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Namespace: api.NamespaceDefault,
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},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: api.PodTemplateSpec{
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyOnFailure,
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DNSPolicy: api.DNSClusterFirst,
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Containers: []api.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
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},
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ObjectMeta: api.ObjectMeta{
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Labels: validLabels,
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},
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},
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},
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},
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"invalid restart policy 2": {
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ObjectMeta: api.ObjectMeta{
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Name: "abc-123",
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Namespace: api.NamespaceDefault,
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},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: api.PodTemplateSpec{
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyNever,
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DNSPolicy: api.DNSClusterFirst,
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Containers: []api.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
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},
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ObjectMeta: api.ObjectMeta{
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Labels: validLabels,
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},
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},
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},
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},
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}
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for k, v := range errorCases {
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errs := ValidateStatefulSet(&v)
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if len(errs) == 0 {
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t.Errorf("expected failure for %s", k)
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}
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for i := range errs {
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field := errs[i].Field
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if !strings.HasPrefix(field, "spec.template.") &&
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field != "metadata.name" &&
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field != "metadata.namespace" &&
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field != "spec.selector" &&
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field != "spec.template" &&
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field != "GCEPersistentDisk.ReadOnly" &&
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field != "spec.replicas" &&
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field != "spec.template.labels" &&
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field != "metadata.annotations" &&
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field != "metadata.labels" &&
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field != "status.replicas" {
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t.Errorf("%s: missing prefix for: %v", k, errs[i])
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}
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}
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}
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}
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func TestValidateStatefulSetUpdate(t *testing.T) {
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validLabels := map[string]string{"a": "b"}
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validPodTemplate := api.PodTemplate{
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: validLabels,
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},
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
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},
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},
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}
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readWriteVolumePodTemplate := api.PodTemplate{
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: validLabels,
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},
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
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Volumes: []api.Volume{{Name: "gcepd", VolumeSource: api.VolumeSource{GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{PDName: "my-PD", FSType: "ext4", Partition: 1, ReadOnly: false}}}},
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},
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},
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}
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invalidLabels := map[string]string{"NoUppercaseOrSpecialCharsLike=Equals": "b"}
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invalidPodTemplate := api.PodTemplate{
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Template: api.PodTemplateSpec{
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Spec: api.PodSpec{
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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},
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ObjectMeta: api.ObjectMeta{
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Labels: invalidLabels,
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},
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},
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}
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type psUpdateTest struct {
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old apps.StatefulSet
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update apps.StatefulSet
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}
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successCases := []psUpdateTest{
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{
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: 3,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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},
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}
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for _, successCase := range successCases {
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successCase.old.ObjectMeta.ResourceVersion = "1"
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successCase.update.ObjectMeta.ResourceVersion = "1"
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if errs := ValidateStatefulSetUpdate(&successCase.update, &successCase.old); len(errs) != 0 {
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t.Errorf("expected success: %v", errs)
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}
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}
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errorCases := map[string]psUpdateTest{
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"more than one read/write": {
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: 2,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: readWriteVolumePodTemplate.Template,
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},
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},
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},
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"updates to a field other than spec.Replicas": {
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: 1,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: readWriteVolumePodTemplate.Template,
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},
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},
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},
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"invalid selector": {
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: 2,
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Selector: &metav1.LabelSelector{MatchLabels: invalidLabels},
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Template: validPodTemplate.Template,
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},
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},
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},
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"invalid pod": {
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: 2,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: invalidPodTemplate.Template,
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},
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},
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},
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"negative replicas": {
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old: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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update: apps.StatefulSet{
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ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
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Spec: apps.StatefulSetSpec{
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Replicas: -1,
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Selector: &metav1.LabelSelector{MatchLabels: validLabels},
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Template: validPodTemplate.Template,
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},
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},
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},
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}
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for testName, errorCase := range errorCases {
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if errs := ValidateStatefulSetUpdate(&errorCase.update, &errorCase.old); len(errs) == 0 {
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t.Errorf("expected failure: %s", testName)
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}
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}
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}
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