image: fix registry mirror setup

Signed-off-by: Yoan Blanc <yoan@dosimple.ch>

integration/dockerfiles/Dockerfile_registry_mirror

@@ -15,6 +15,6 @@
 # Test to make sure the executor builds an image correctly
 # when no files are changed
 
-FROM google-appengine/debian9@sha256:1d6a9a6d106bd795098f60f4abb7083626354fa6735e81743c7f8cfca11259f0
-RUN echo "hey" 
+FROM library/debian:latest
+RUN echo "hey"
 MAINTAINER kaniko

integration/integration_test.go

@@ -229,7 +229,7 @@ func getGitRepo() string {
 		} else {
 			branch = os.Getenv("TRAVIS_BRANCH")
 			repoSlug = os.Getenv("TRAVIS_REPO_SLUG")
-			log.Printf("Travis CI pepo: %s branch: %s\n", repoSlug, branch)
+			log.Printf("Travis CI repo: %s branch: %s\n", repoSlug, branch)
 		}
 		return "github.com/" + repoSlug + "#refs/heads/" + branch
 	}
@@ -303,7 +303,7 @@ func TestBuildViaRegistryMirror(t *testing.T) {
 	dockerRunFlags = append(dockerRunFlags, ExecutorImage,
 		"-f", dockerfile,
 		"-d", kanikoImage,
-		"--registry-mirror", "gcr.io",
+		"--registry-mirror", "us-mirror.gcr.io",
 		"-c", fmt.Sprintf("git://%s", repo))
 
 	kanikoCmd := exec.Command("docker", dockerRunFlags...)

pkg/config/options.go

@@ -40,10 +40,10 @@ type KanikoOptions struct {
 	ImageNameDigestFile     string
 	OCILayoutPath           string
 	RegistryMirror          string
-	InsecureRegistries      multiArg
-	SkipTLSVerifyRegistries multiArg
 	Destinations            multiArg
 	BuildArgs               multiArg
+	InsecureRegistries      multiArg
+	SkipTLSVerifyRegistries multiArg
 	Insecure                bool
 	SkipTLSVerify           bool
 	InsecurePull            bool

pkg/util/image_util.go

@@ -108,6 +108,7 @@ func remoteImage(image string, opts *config.KanikoOptions) (v1.Image, error) {
 
 	registryName := ref.Context().RegistryStr()
 	var newReg name.Registry
+	toSet := false
 
 	if opts.RegistryMirror != "" && registryName == name.DefaultRegistry {
 		registryName = opts.RegistryMirror
@@ -116,6 +117,8 @@ func remoteImage(image string, opts *config.KanikoOptions) (v1.Image, error) {
 		if err != nil {
 			return nil, err
 		}
+
+		toSet = true
 	}
 
 	if opts.InsecurePull || opts.InsecureRegistries.Contains(registryName) {
@@ -123,9 +126,11 @@ func remoteImage(image string, opts *config.KanikoOptions) (v1.Image, error) {
 		if err != nil {
 			return nil, err
 		}
+
+		toSet = true
 	}
 
-	if newReg != ref.Context().Registry {
+	if toSet {
 		if tag, ok := ref.(name.Tag); ok {
 			tag.Repository.Registry = newReg
 			ref = tag