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client_test.go
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client_test.go
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/*
Copyright 2018 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 client_test
import (
"context"
"encoding/json"
"errors"
"fmt"
"reflect"
"sync/atomic"
"time"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
appsv1 "k8s.io/api/apps/v1"
authenticationv1 "k8s.io/api/authentication/v1"
autoscalingv1 "k8s.io/api/autoscaling/v1"
certificatesv1 "k8s.io/api/certificates/v1"
corev1 "k8s.io/api/core/v1"
policyv1 "k8s.io/api/policy/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
kscheme "k8s.io/client-go/kubernetes/scheme"
"k8s.io/utils/ptr"
"sigs.k8s.io/controller-runtime/examples/crd/pkg"
"sigs.k8s.io/controller-runtime/pkg/cache"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func deleteDeployment(ctx context.Context, dep *appsv1.Deployment, ns string) {
_, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
if err == nil {
err = clientset.AppsV1().Deployments(ns).Delete(ctx, dep.Name, metav1.DeleteOptions{})
Expect(err).NotTo(HaveOccurred())
}
}
func deleteNamespace(ctx context.Context, ns *corev1.Namespace) {
ns, err := clientset.CoreV1().Namespaces().Get(ctx, ns.Name, metav1.GetOptions{})
if err != nil {
return
}
err = clientset.CoreV1().Namespaces().Delete(ctx, ns.Name, metav1.DeleteOptions{})
Expect(err).NotTo(HaveOccurred())
// finalize if necessary
pos := -1
finalizers := ns.Spec.Finalizers
for i, fin := range finalizers {
if fin == "kubernetes" {
pos = i
break
}
}
if pos == -1 {
// no need to finalize
return
}
// re-get in order to finalize
ns, err = clientset.CoreV1().Namespaces().Get(ctx, ns.Name, metav1.GetOptions{})
if err != nil {
return
}
ns.Spec.Finalizers = append(finalizers[:pos], finalizers[pos+1:]...)
_, err = clientset.CoreV1().Namespaces().Finalize(ctx, ns, metav1.UpdateOptions{})
Expect(err).NotTo(HaveOccurred())
WAIT_LOOP:
for i := 0; i < 10; i++ {
ns, err = clientset.CoreV1().Namespaces().Get(ctx, ns.Name, metav1.GetOptions{})
if apierrors.IsNotFound(err) {
// success!
return
}
select {
case <-ctx.Done():
break WAIT_LOOP
// failed to delete in time, see failure below
case <-time.After(100 * time.Millisecond):
// do nothing, try again
}
}
Fail(fmt.Sprintf("timed out waiting for namespace %q to be deleted", ns.Name))
}
type mockPatchOption struct {
applied bool
}
func (o *mockPatchOption) ApplyToPatch(_ *client.PatchOptions) {
o.applied = true
}
// metaOnlyFromObj returns PartialObjectMetadata from a concrete Go struct that
// returns a concrete *metav1.ObjectMeta from GetObjectMeta (yes, that plays a
// bit fast and loose, but the only other options are serializing and then
// deserializing, or manually calling all the accessor funcs, which are both a bit annoying).
func metaOnlyFromObj(obj interface {
runtime.Object
metav1.ObjectMetaAccessor
}, scheme *runtime.Scheme) *metav1.PartialObjectMetadata {
metaObj := metav1.PartialObjectMetadata{}
obj.GetObjectMeta().(*metav1.ObjectMeta).DeepCopyInto(&metaObj.ObjectMeta)
kinds, _, err := scheme.ObjectKinds(obj)
if err != nil {
panic(err)
}
metaObj.SetGroupVersionKind(kinds[0])
return &metaObj
}
var _ = Describe("Client", func() {
var scheme *runtime.Scheme
var depGvk schema.GroupVersionKind
var dep *appsv1.Deployment
var pod *corev1.Pod
var node *corev1.Node
var serviceAccount *corev1.ServiceAccount
var csr *certificatesv1.CertificateSigningRequest
var count uint64 = 0
var replicaCount int32 = 2
var ns = "default"
var errNotCached *cache.ErrResourceNotCached
ctx := context.TODO()
BeforeEach(func() {
atomic.AddUint64(&count, 1)
dep = &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("deployment-name-%v", count), Namespace: ns, Labels: map[string]string{"app": fmt.Sprintf("bar-%v", count)}},
Spec: appsv1.DeploymentSpec{
Replicas: &replicaCount,
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{"foo": "bar"},
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar"}},
Spec: corev1.PodSpec{Containers: []corev1.Container{{Name: "nginx", Image: "nginx"}}},
},
},
}
depGvk = schema.GroupVersionKind{
Group: "apps",
Kind: "Deployment",
Version: "v1",
}
// Pod is invalid without a container field in the PodSpec
pod = &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("pod-%v", count), Namespace: ns},
Spec: corev1.PodSpec{},
}
node = &corev1.Node{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("node-name-%v", count)},
Spec: corev1.NodeSpec{},
}
serviceAccount = &corev1.ServiceAccount{ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("sa-%v", count), Namespace: ns}}
csr = &certificatesv1.CertificateSigningRequest{
ObjectMeta: metav1.ObjectMeta{Name: fmt.Sprintf("csr-%v", count)},
Spec: certificatesv1.CertificateSigningRequestSpec{
SignerName: "org.io/my-signer",
Request: []byte(`-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----`),
Usages: []certificatesv1.KeyUsage{certificatesv1.UsageClientAuth},
},
}
scheme = kscheme.Scheme
})
var delOptions *metav1.DeleteOptions
AfterEach(func() {
// Cleanup
var zero int64 = 0
policy := metav1.DeletePropagationForeground
delOptions = &metav1.DeleteOptions{
GracePeriodSeconds: &zero,
PropagationPolicy: &policy,
}
deleteDeployment(ctx, dep, ns)
_, err := clientset.CoreV1().Nodes().Get(ctx, node.Name, metav1.GetOptions{})
if err == nil {
err = clientset.CoreV1().Nodes().Delete(ctx, node.Name, *delOptions)
Expect(err).NotTo(HaveOccurred())
}
err = clientset.CoreV1().ServiceAccounts(ns).Delete(ctx, serviceAccount.Name, *delOptions)
Expect(client.IgnoreNotFound(err)).NotTo(HaveOccurred())
err = clientset.CertificatesV1().CertificateSigningRequests().Delete(ctx, csr.Name, *delOptions)
Expect(client.IgnoreNotFound(err)).NotTo(HaveOccurred())
})
Describe("New", func() {
It("should return a new Client", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
})
It("should fail if the config is nil", func() {
cl, err := client.New(nil, client.Options{})
Expect(err).To(HaveOccurred())
Expect(cl).To(BeNil())
})
It("should use the provided Scheme if provided", func() {
cl, err := client.New(cfg, client.Options{Scheme: scheme})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.Scheme()).ToNot(BeNil())
Expect(cl.Scheme()).To(Equal(scheme))
})
It("should default the Scheme if not provided", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.Scheme()).ToNot(BeNil())
Expect(cl.Scheme()).To(Equal(kscheme.Scheme))
})
It("should use the provided Mapper if provided", func() {
mapper := meta.NewDefaultRESTMapper([]schema.GroupVersion{})
cl, err := client.New(cfg, client.Options{Mapper: mapper})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.RESTMapper()).ToNot(BeNil())
Expect(cl.RESTMapper()).To(Equal(mapper))
})
It("should create a Mapper if not provided", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.RESTMapper()).ToNot(BeNil())
})
It("should use the provided reader cache if provided, on get and list", func() {
cache := &fakeReader{}
cl, err := client.New(cfg, client.Options{Cache: &client.CacheOptions{Reader: cache}})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.Get(ctx, client.ObjectKey{Name: "test"}, &appsv1.Deployment{})).To(Succeed())
Expect(cl.List(ctx, &appsv1.DeploymentList{})).To(Succeed())
Expect(cache.Called).To(Equal(2))
})
It("should propagate ErrResourceNotCached errors", func() {
c := &fakeUncachedReader{}
cl, err := client.New(cfg, client.Options{Cache: &client.CacheOptions{Reader: c}})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(errors.As(cl.Get(ctx, client.ObjectKey{Name: "test"}, &appsv1.Deployment{}), &errNotCached)).To(BeTrue())
Expect(errors.As(cl.List(ctx, &appsv1.DeploymentList{}), &errNotCached)).To(BeTrue())
Expect(c.Called).To(Equal(2))
})
It("should not use the provided reader cache if provided, on get and list for uncached GVKs", func() {
cache := &fakeReader{}
cl, err := client.New(cfg, client.Options{Cache: &client.CacheOptions{Reader: cache, DisableFor: []client.Object{&corev1.Namespace{}}}})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
Expect(cl.Get(ctx, client.ObjectKey{Name: "default"}, &corev1.Namespace{})).To(Succeed())
Expect(cl.List(ctx, &corev1.NamespaceList{})).To(Succeed())
Expect(cache.Called).To(Equal(0))
})
})
Describe("Create", func() {
Context("with structured objects", func() {
It("should create a new object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the object")
err = cl.Create(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
By("writing the result back to the go struct")
Expect(dep).To(Equal(actual))
})
It("should create a new object non-namespace object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the object")
err = cl.Create(context.TODO(), node)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.CoreV1().Nodes().Get(ctx, node.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
By("writing the result back to the go struct")
Expect(node).To(Equal(actual))
})
It("should fail if the object already exists", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
old := dep.DeepCopy()
By("creating the object")
err = cl.Create(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
By("creating the object a second time")
err = cl.Create(context.TODO(), old)
Expect(err).To(HaveOccurred())
Expect(apierrors.IsAlreadyExists(err)).To(BeTrue())
})
It("should fail if the object does not pass server-side validation", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the pod, since required field Containers is empty")
err = cl.Create(context.TODO(), pod)
Expect(err).To(HaveOccurred())
// TODO(seans): Add test to validate the returned error. Problems currently with
// different returned error locally versus travis.
})
It("should fail if the object cannot be mapped to a GVK", func() {
By("creating client with empty Scheme")
emptyScheme := runtime.NewScheme()
cl, err := client.New(cfg, client.Options{Scheme: emptyScheme})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the object fails")
err = cl.Create(context.TODO(), dep)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("no kind is registered for the type"))
})
PIt("should fail if the GVK cannot be mapped to a Resource", func() {
// TODO(seans3): implement these
// Example: ListOptions
})
Context("with the DryRun option", func() {
It("should not create a new object, global option", func() {
cl, err := client.New(cfg, client.Options{DryRun: ptr.To(true)})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the object (with DryRun)")
err = cl.Create(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).To(HaveOccurred())
Expect(apierrors.IsNotFound(err)).To(BeTrue())
Expect(actual).To(Equal(&appsv1.Deployment{}))
})
It("should not create a new object, inline option", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the object (with DryRun)")
err = cl.Create(context.TODO(), dep, client.DryRunAll)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).To(HaveOccurred())
Expect(apierrors.IsNotFound(err)).To(BeTrue())
Expect(actual).To(Equal(&appsv1.Deployment{}))
})
})
})
Context("with unstructured objects", func() {
It("should create a new object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("encoding the deployment as unstructured")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(dep, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "apps",
Kind: "Deployment",
Version: "v1",
})
By("creating the object")
err = cl.Create(context.TODO(), u)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
})
It("should create a new non-namespace object ", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("encoding the deployment as unstructured")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(node, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "",
Kind: "Node",
Version: "v1",
})
By("creating the object")
err = cl.Create(context.TODO(), node)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.CoreV1().Nodes().Get(ctx, node.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
au := &unstructured.Unstructured{}
Expect(scheme.Convert(actual, au, nil)).To(Succeed())
Expect(scheme.Convert(node, u, nil)).To(Succeed())
By("writing the result back to the go struct")
Expect(u).To(Equal(au))
})
It("should fail if the object already exists", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
old := dep.DeepCopy()
By("creating the object")
err = cl.Create(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
By("encoding the deployment as unstructured")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(old, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "apps",
Kind: "Deployment",
Version: "v1",
})
By("creating the object a second time")
err = cl.Create(context.TODO(), u)
Expect(err).To(HaveOccurred())
Expect(apierrors.IsAlreadyExists(err)).To(BeTrue())
})
It("should fail if the object does not pass server-side validation", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("creating the pod, since required field Containers is empty")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(pod, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "",
Version: "v1",
Kind: "Pod",
})
err = cl.Create(context.TODO(), u)
Expect(err).To(HaveOccurred())
// TODO(seans): Add test to validate the returned error. Problems currently with
// different returned error locally versus travis.
})
})
Context("with metadata objects", func() {
It("should fail with an error", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
obj := metaOnlyFromObj(dep, scheme)
Expect(cl.Create(context.TODO(), obj)).NotTo(Succeed())
})
})
Context("with the DryRun option", func() {
It("should not create a new object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("encoding the deployment as unstructured")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(dep, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "apps",
Kind: "Deployment",
Version: "v1",
})
By("creating the object")
err = cl.Create(context.TODO(), u, client.DryRunAll)
Expect(err).NotTo(HaveOccurred())
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).To(HaveOccurred())
Expect(apierrors.IsNotFound(err)).To(BeTrue())
Expect(actual).To(Equal(&appsv1.Deployment{}))
})
})
})
Describe("Update", func() {
Context("with structured objects", func() {
It("should update an existing object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the Deployment")
dep.Annotations = map[string]string{"foo": "bar"}
err = cl.Update(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
By("validating updated Deployment has new annotation")
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
Expect(actual.Annotations["foo"]).To(Equal("bar"))
})
It("should update and preserve type information", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the Deployment")
dep.SetGroupVersionKind(depGvk)
err = cl.Update(context.TODO(), dep)
Expect(err).NotTo(HaveOccurred())
By("validating updated Deployment has type information")
Expect(dep.GroupVersionKind()).To(Equal(depGvk))
})
It("should update an existing object non-namespace object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
node, err := clientset.CoreV1().Nodes().Create(ctx, node, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the object")
node.Annotations = map[string]string{"foo": "bar"}
err = cl.Update(context.TODO(), node)
Expect(err).NotTo(HaveOccurred())
By("validate updated Node had new annotation")
actual, err := clientset.CoreV1().Nodes().Get(ctx, node.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
Expect(actual.Annotations["foo"]).To(Equal("bar"))
})
It("should fail if the object does not exist", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("updating non-existent object")
err = cl.Update(context.TODO(), dep)
Expect(err).To(HaveOccurred())
})
PIt("should fail if the object does not pass server-side validation", func() {
})
PIt("should fail if the object doesn't have meta", func() {
})
It("should fail if the object cannot be mapped to a GVK", func() {
By("creating client with empty Scheme")
emptyScheme := runtime.NewScheme()
cl, err := client.New(cfg, client.Options{Scheme: emptyScheme})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the Deployment")
dep.Annotations = map[string]string{"foo": "bar"}
err = cl.Update(context.TODO(), dep)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("no kind is registered for the type"))
})
PIt("should fail if the GVK cannot be mapped to a Resource", func() {
})
})
Context("with unstructured objects", func() {
It("should update an existing object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the Deployment")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(dep, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "apps",
Kind: "Deployment",
Version: "v1",
})
u.SetAnnotations(map[string]string{"foo": "bar"})
err = cl.Update(context.TODO(), u)
Expect(err).NotTo(HaveOccurred())
By("validating updated Deployment has new annotation")
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
Expect(actual.Annotations["foo"]).To(Equal("bar"))
})
It("should update and preserve type information", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the Deployment")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(dep, u, nil)).To(Succeed())
u.SetGroupVersionKind(depGvk)
u.SetAnnotations(map[string]string{"foo": "bar"})
err = cl.Update(context.TODO(), u)
Expect(err).NotTo(HaveOccurred())
By("validating updated Deployment has type information")
Expect(u.GroupVersionKind()).To(Equal(depGvk))
})
It("should update an existing object non-namespace object from a go struct", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
node, err := clientset.CoreV1().Nodes().Create(ctx, node, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("updating the object")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(node, u, nil)).To(Succeed())
u.SetGroupVersionKind(schema.GroupVersionKind{
Group: "",
Kind: "Node",
Version: "v1",
})
u.SetAnnotations(map[string]string{"foo": "bar"})
err = cl.Update(context.TODO(), u)
Expect(err).NotTo(HaveOccurred())
By("validate updated Node had new annotation")
actual, err := clientset.CoreV1().Nodes().Get(ctx, node.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
Expect(actual.Annotations["foo"]).To(Equal("bar"))
})
It("should fail if the object does not exist", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("updating non-existent object")
u := &unstructured.Unstructured{}
Expect(scheme.Convert(dep, u, nil)).To(Succeed())
u.SetGroupVersionKind(depGvk)
err = cl.Update(context.TODO(), dep)
Expect(err).To(HaveOccurred())
})
})
Context("with metadata objects", func() {
It("should fail with an error", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
obj := metaOnlyFromObj(dep, scheme)
Expect(cl.Update(context.TODO(), obj)).NotTo(Succeed())
})
})
})
Describe("Patch", func() {
Context("Metadata Client", func() {
It("should merge patch with options", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("initially creating a Deployment")
dep, err := clientset.AppsV1().Deployments(ns).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
metadata := metaOnlyFromObj(dep, scheme)
if metadata.Labels == nil {
metadata.Labels = make(map[string]string)
}
metadata.Labels["foo"] = "bar"
testOption := &mockPatchOption{}
Expect(cl.Patch(context.TODO(), metadata, client.Merge, testOption)).To(Succeed())
By("validating that patched metadata has new labels")
actual, err := clientset.AppsV1().Deployments(ns).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(actual).NotTo(BeNil())
Expect(actual.Labels["foo"]).To(Equal("bar"))
By("validating patch options were applied")
Expect(testOption.applied).To(BeTrue())
})
})
})
Describe("SubResourceClient", func() {
Context("with structured objects", func() {
It("should be able to read the Scale subresource", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating a deployment")
dep, err := clientset.AppsV1().Deployments(dep.Namespace).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("reading the scale subresource")
scale := &autoscalingv1.Scale{}
err = cl.SubResource("scale").Get(ctx, dep, scale)
Expect(err).NotTo(HaveOccurred())
Expect(scale.Spec.Replicas).To(Equal(*dep.Spec.Replicas))
})
It("should be able to create ServiceAccount tokens", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating the serviceAccount")
_, err = clientset.CoreV1().ServiceAccounts(serviceAccount.Namespace).Create(ctx, serviceAccount, metav1.CreateOptions{})
Expect((err)).NotTo(HaveOccurred())
token := &authenticationv1.TokenRequest{}
err = cl.SubResource("token").Create(ctx, serviceAccount, token)
Expect(err).NotTo(HaveOccurred())
Expect(token.Status.Token).NotTo(Equal(""))
})
It("should be able to create Pod evictions", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
// Make the pod valid
pod.Spec.Containers = []corev1.Container{{Name: "foo", Image: "busybox"}}
By("Creating the pod")
pod, err = clientset.CoreV1().Pods(pod.Namespace).Create(ctx, pod, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Creating the eviction")
eviction := &policyv1.Eviction{
DeleteOptions: &metav1.DeleteOptions{GracePeriodSeconds: ptr.To(int64(0))},
}
err = cl.SubResource("eviction").Create(ctx, pod, eviction)
Expect((err)).NotTo(HaveOccurred())
By("Asserting the pod is gone")
_, err = clientset.CoreV1().Pods(pod.Namespace).Get(ctx, pod.Name, metav1.GetOptions{})
Expect(apierrors.IsNotFound(err)).To(BeTrue())
})
It("should be able to create Pod bindings", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
// Make the pod valid
pod.Spec.Containers = []corev1.Container{{Name: "foo", Image: "busybox"}}
By("Creating the pod")
pod, err = clientset.CoreV1().Pods(pod.Namespace).Create(ctx, pod, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Creating the binding")
binding := &corev1.Binding{
Target: corev1.ObjectReference{Name: node.Name},
}
err = cl.SubResource("binding").Create(ctx, pod, binding)
Expect((err)).NotTo(HaveOccurred())
By("Asserting the pod is bound")
pod, err = clientset.CoreV1().Pods(pod.Namespace).Get(ctx, pod.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(pod.Spec.NodeName).To(Equal(node.Name))
})
It("should be able to approve CSRs", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating the CSR")
csr, err := clientset.CertificatesV1().CertificateSigningRequests().Create(ctx, csr, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Approving the CSR")
csr.Status.Conditions = append(csr.Status.Conditions, certificatesv1.CertificateSigningRequestCondition{
Type: certificatesv1.CertificateApproved,
Status: corev1.ConditionTrue,
})
err = cl.SubResource("approval").Update(ctx, csr)
Expect(err).NotTo(HaveOccurred())
By("Asserting the CSR is approved")
csr, err = clientset.CertificatesV1().CertificateSigningRequests().Get(ctx, csr.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(csr.Status.Conditions[0].Type).To(Equal(certificatesv1.CertificateApproved))
Expect(csr.Status.Conditions[0].Status).To(Equal(corev1.ConditionTrue))
})
It("should be able to approve CSRs using Patch", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating the CSR")
csr, err := clientset.CertificatesV1().CertificateSigningRequests().Create(ctx, csr, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Approving the CSR")
patch := client.MergeFrom(csr.DeepCopy())
csr.Status.Conditions = append(csr.Status.Conditions, certificatesv1.CertificateSigningRequestCondition{
Type: certificatesv1.CertificateApproved,
Status: corev1.ConditionTrue,
})
err = cl.SubResource("approval").Patch(ctx, csr, patch)
Expect(err).NotTo(HaveOccurred())
By("Asserting the CSR is approved")
csr, err = clientset.CertificatesV1().CertificateSigningRequests().Get(ctx, csr.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(csr.Status.Conditions[0].Type).To(Equal(certificatesv1.CertificateApproved))
Expect(csr.Status.Conditions[0].Status).To(Equal(corev1.ConditionTrue))
})
It("should be able to update the scale subresource", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating a deployment")
dep, err := clientset.AppsV1().Deployments(dep.Namespace).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Updating the scale subresurce")
replicaCount := *dep.Spec.Replicas
scale := &autoscalingv1.Scale{Spec: autoscalingv1.ScaleSpec{Replicas: replicaCount}}
err = cl.SubResource("scale").Update(ctx, dep, client.WithSubResourceBody(scale))
Expect(err).NotTo(HaveOccurred())
By("Asserting replicas got updated")
dep, err = clientset.AppsV1().Deployments(dep.Namespace).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(*dep.Spec.Replicas).To(Equal(replicaCount))
})
It("should be able to patch the scale subresource", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating a deployment")
dep, err := clientset.AppsV1().Deployments(dep.Namespace).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
By("Updating the scale subresurce")
replicaCount := *dep.Spec.Replicas
patch := client.MergeFrom(&autoscalingv1.Scale{})
scale := &autoscalingv1.Scale{Spec: autoscalingv1.ScaleSpec{Replicas: replicaCount}}
err = cl.SubResource("scale").Patch(ctx, dep, patch, client.WithSubResourceBody(scale))
Expect(err).NotTo(HaveOccurred())
By("Asserting replicas got updated")
dep, err = clientset.AppsV1().Deployments(dep.Namespace).Get(ctx, dep.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
Expect(*dep.Spec.Replicas).To(Equal(replicaCount))
})
})
Context("with unstructured objects", func() {
It("should be able to read the Scale subresource", func() {
cl, err := client.New(cfg, client.Options{})
Expect(err).NotTo(HaveOccurred())
Expect(cl).NotTo(BeNil())
By("Creating a deployment")
dep, err := clientset.AppsV1().Deployments(dep.Namespace).Create(ctx, dep, metav1.CreateOptions{})
Expect(err).NotTo(HaveOccurred())
dep.APIVersion = appsv1.SchemeGroupVersion.String()
dep.Kind = reflect.TypeOf(dep).Elem().Name()
depUnstructured, err := toUnstructured(dep)
Expect(err).NotTo(HaveOccurred())
By("reading the scale subresource")
scale := &unstructured.Unstructured{}
scale.SetAPIVersion("autoscaling/v1")
scale.SetKind("Scale")
err = cl.SubResource("scale").Get(ctx, depUnstructured, scale)
Expect(err).NotTo(HaveOccurred())
val, found, err := unstructured.NestedInt64(scale.UnstructuredContent(), "spec", "replicas")
Expect(err).NotTo(HaveOccurred())
Expect(found).To(BeTrue())
Expect(int32(val)).To(Equal(*dep.Spec.Replicas))
})
It("should be able to create ServiceAccount tokens", func() {