120 lines
3.8 KiB
Go
120 lines
3.8 KiB
Go
/*
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Copyright 2020 The Flux CD contributors.
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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 controllers
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import (
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"context"
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"strings"
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"time"
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"github.com/google/go-containerregistry/pkg/name"
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"github.com/google/go-containerregistry/pkg/v1/random"
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"github.com/google/go-containerregistry/pkg/v1/remote"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"k8s.io/apimachinery/pkg/types"
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imagev1alpha1 "github.com/squaremo/image-reflector-controller/api/v1alpha1"
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// +kubebuilder:scaffold:imports
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)
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// https://github.com/google/go-containerregistry/blob/v0.1.1/pkg/registry/compatibility_test.go
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// has an example of loading a test registry with a random image.
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var _ = Describe("ImageRepository controller", func() {
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It("expands the canonical image name", func() {
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// would be good to test this without needing to do the scanning, since
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// 1. better to not rely on external services being available
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// 2. probably going to want to have several test cases
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repo := imagev1alpha1.ImageRepository{
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Spec: imagev1alpha1.ImageRepositorySpec{
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Image: "alpine",
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},
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}
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imageRepoName := types.NamespacedName{
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Name: "alpine-image",
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Namespace: "default",
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}
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repo.Name = imageRepoName.Name
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repo.Namespace = imageRepoName.Namespace
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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r := imageRepoReconciler
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err := r.Create(ctx, &repo)
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Expect(err).ToNot(HaveOccurred())
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var repoAfter imagev1alpha1.ImageRepository
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Eventually(func() bool {
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err := r.Get(context.Background(), imageRepoName, &repoAfter)
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return err == nil && repoAfter.Status.CanonicalImageName != ""
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}, timeout, interval).Should(BeTrue())
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Expect(repoAfter.Name).To(Equal("alpine-image"))
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Expect(repoAfter.Namespace).To(Equal("default"))
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Expect(repoAfter.Status.CanonicalImageName).To(Equal("index.docker.io/library/alpine"))
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})
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It("fetches the tags for an image", func() {
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versions := []string{"0.1.0", "0.1.1", "0.2.0", "1.0.0", "1.0.1", "1.0.2", "1.1.0-alpha"}
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imgRepo := loadImages("test-fetch", versions)
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repo := imagev1alpha1.ImageRepository{
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Spec: imagev1alpha1.ImageRepositorySpec{
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Image: imgRepo,
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},
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}
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objectName := types.NamespacedName{
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Name: "random",
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Namespace: "default",
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}
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repo.Name = objectName.Name
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repo.Namespace = objectName.Namespace
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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r := imageRepoReconciler
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Expect(r.Create(ctx, &repo)).To(Succeed())
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var repoAfter imagev1alpha1.ImageRepository
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Eventually(func() bool {
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err := r.Get(context.Background(), objectName, &repoAfter)
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return err == nil && repoAfter.Status.CanonicalImageName != ""
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}, timeout, interval).Should(BeTrue())
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Expect(repoAfter.Status.CanonicalImageName).To(Equal(imgRepo))
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Expect(repoAfter.Status.LastScanResult.TagCount).To(Equal(len(versions)))
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})
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})
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// loadImages uploads images to the local registry, and returns the
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// image repo.
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func loadImages(imageName string, versions []string) string {
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registry := strings.TrimPrefix(registryServer.URL, "http://")
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imgRepo := registry + "/" + imageName
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for _, tag := range versions {
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imgRef, err := name.NewTag(imgRepo + ":" + tag)
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Expect(err).ToNot(HaveOccurred())
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img, err := random.Image(512, 1)
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Expect(err).ToNot(HaveOccurred())
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Expect(remote.Write(imgRef, img)).To(Succeed())
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}
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return imgRepo
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}
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