Stop retrying pull on UnkownBlob error

Signed-off-by: Darren Stahl <darst@microsoft.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/distribution/errors.go b/distribution/errors.go
index ed8c3c0534..7f9e20f279 100644
--- a/distribution/errors.go
+++ b/distribution/errors.go
@@ -6,6 +6,7 @@ import (
 	"syscall"
 
 	"github.com/Sirupsen/logrus"
+	"github.com/docker/distribution"
 	"github.com/docker/distribution/registry/api/errcode"
 	"github.com/docker/distribution/registry/api/v2"
 	"github.com/docker/distribution/registry/client"
@@ -139,6 +140,9 @@ func retryOnError(err error) error {
 	case *client.UnexpectedHTTPResponseError:
 		return xfer.DoNotRetry{Err: err}
 	case error:
+		if err == distribution.ErrBlobUnknown {
+			return xfer.DoNotRetry{Err: err}
+		}
 		if strings.Contains(err.Error(), strings.ToLower(syscall.ENOSPC.Error())) {
 			return xfer.DoNotRetry{Err: err}
 		}