Add ability to custom handle redirects

api/internal/loader/errors.go

@@ -9,3 +9,12 @@ var (
 	ErrHTTP     = errors.Errorf("HTTP Error")
 	ErrRtNotDir = errors.Errorf("must build at directory")
 )
+
+type RedirectionError struct {
+	NewPath string
+	Msg     string
+}
+
+func (e *RedirectionError) Error() string {
+	return e.Msg
+}

api/internal/loader/fileloader.go

@@ -106,6 +106,9 @@
 	cleaner func() error
 }
 
+// This redirect code does not process automaticali by http client and we can process it manualy
+const MULTIPLE_CHOICES_REDIRECT_CODE = 300
+
 // Repo returns the absolute path to the repo that contains Root if this fileLoader was created from a url
 // or the empty string otherwise.
 func (fl *FileLoader) Repo() string {
@@ -318,11 +321,19 @@
 	defer resp.Body.Close()
 	// response unsuccessful
 	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		_, err = git.NewRepoSpecFromURL(path)
-		if err == nil {
-			return nil, errors.Errorf("URL is a git repository")
+		if resp.StatusCode == MULTIPLE_CHOICES_REDIRECT_CODE {
+			var newPath string = resp.Header.Get("Location")
+			return nil, &RedirectionError{
+				Msg:     "Response is redirect",
+				NewPath: newPath,
+			}
+		} else {
+			_, err = git.NewRepoSpecFromURL(path)
+			if err == nil {
+				return nil, errors.Errorf("URL is a git repository")
+			}
+			return nil, fmt.Errorf("%w: status code %d (%s)", ErrHTTP, resp.StatusCode, http.StatusText(resp.StatusCode))
 		}
-		return nil, fmt.Errorf("%w: status code %d (%s)", ErrHTTP, resp.StatusCode, http.StatusText(resp.StatusCode))
 	}
 	content, err := io.ReadAll(resp.Body)
 	return content, errors.Wrap(err)

api/internal/loader/fileloader_test.go

@@ -19,6 +19,7 @@
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/git"
 	"sigs.k8s.io/kustomize/api/konfig"
+	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/filesys"
 )
 
@@ -659,6 +660,35 @@
 		_, err := l2.Load(x.path)
 		require.Error(err)
 	}
+
+	var testCaseRedirect = []testData{
+		{
+			path:            "https://example.com/resource.yaml",
+			expectedContent: "https content",
+		},
+	}
+	for _, x := range testCaseRedirect {
+		expectedLocation := "https://redirect.com/resource.yaml"
+		hc := makeFakeHTTPClient(func(req *http.Request) *http.Response {
+			response := &http.Response{
+				StatusCode: 300,
+				Body:       io.NopCloser(bytes.NewBufferString("")),
+				Header:     make(http.Header),
+			}
+			response.Header.Add("Location", expectedLocation)
+			return response
+		})
+		l2 := l1
+		l2.http = hc
+		_, err := l2.Load(x.path)
+		require.Error(err)
+		var redErr *RedirectionError
+		var path string = ""
+		if errors.As(err, &redErr) {
+			path = redErr.NewPath
+		}
+		require.Equal(expectedLocation, path)
+	}
 }
 
 // setupOnDisk sets up a file system on disk and directory that is cleaned after

api/internal/localizer/localizer.go

@@ -335,6 +335,11 @@ func (lc *localizer) localizeResource(path string) (string, error) {
 		}
 	}
 	if fileErr != nil {
+		var redErr *loader.RedirectionError
+		if errors.As(fileErr, &redErr) {
+			path = redErr.NewPath
+		}
+
 		var rootErr error
 		locPath, rootErr = lc.localizeRoot(path)
 		if rootErr != nil {

api/internal/target/kusttarget.go

@@ -423,7 +423,12 @@ func (kt *KustTarget) accumulateResources(
 			if errors.Is(errF, load.ErrHTTP) {
 				return nil, errF
 			}
+			var redErr *load.RedirectionError
+			if errors.As(errF, &redErr) {
+				path = redErr.NewPath
+			}
 			ldr, err := kt.ldr.New(path)
+
 			if err != nil {
 				// If accumulateFile found malformed YAML and there was a failure
 				// loading the resource as a base, then the resource is likely a