Add azure_remote_url and corresponding test.

Signed-off-by: Chris Grass <chris.grass@mcg.com>

Author: Chris Grass

flyteadmin/pkg/common/cloud.go

@@ -7,6 +7,7 @@ type CloudProvider = string
 const (
 	AWS     CloudProvider = "aws"
 	GCP     CloudProvider = "gcp"
+	Azure   CloudProvider = "azure"
 	Sandbox CloudProvider = "sandbox"
 	Local   CloudProvider = "local"
 	None    CloudProvider = "none"

flyteadmin/pkg/data/factory.go

@@ -50,7 +50,11 @@ func GetRemoteDataHandler(cfg RemoteDataHandlerConfig) RemoteDataHandler {
 		return &remoteDataHandler{
 			remoteURL: implementations.NewGCPRemoteURL(cfg.SigningPrincipal, signedURLDuration),
 		}
-
+	case common.Azure:
+		signedURLDuration := time.Minute * time.Duration(cfg.SignedURLDurationMinutes)
+		return &remoteDataHandler{
+			remoteURL: implementations.NewAzureRemoteURL(*cfg.RemoteDataStoreClient, signedURLDuration),
+		}
 	case common.Local:
 		logger.Infof(context.TODO(), "setting up local signer ----- ")
 		// Since minio = aws s3, we are creating the same client but using the config primitives from aws

flyteadmin/pkg/data/implementations/azure_remote_url.go

@@ -0,0 +1,46 @@
+package implementations
+
+import (
+	"context"
+	"github.com/flyteorg/flyte/flyteadmin/pkg/data/interfaces"
+	"github.com/flyteorg/flyte/flyteadmin/pkg/errors"
+	"github.com/flyteorg/flyte/flyteidl/gen/pb-go/flyteidl/admin"
+	"github.com/flyteorg/flyte/flytestdlib/storage"
+	"github.com/flyteorg/stow"
+	"google.golang.org/grpc/codes"
+	"time"
+)
+
+type AzureRemoteURL struct {
+	remoteDataStoreClient storage.DataStore
+	presignDuration       time.Duration
+}
+
+func (n *AzureRemoteURL) Get(ctx context.Context, uri string) (admin.UrlBlob, error) {
+	metadata, err := n.remoteDataStoreClient.Head(ctx, storage.DataReference(uri))
+	if err != nil {
+		return admin.UrlBlob{}, errors.NewFlyteAdminErrorf(codes.Internal,
+			"failed to get metadata for uri: %s with err: %v", uri, err)
+	}
+
+	signedUri, err := n.remoteDataStoreClient.CreateSignedURL(ctx, storage.DataReference(uri), storage.SignedURLProperties{
+		Scope:     stow.ClientMethodGet,
+		ExpiresIn: n.presignDuration,
+	})
+	if err != nil {
+		return admin.UrlBlob{}, errors.NewFlyteAdminErrorf(codes.Internal,
+			"failed to get metadata for uri: %s with err: %v", uri, err)
+	}
+
+	return admin.UrlBlob{
+		Url:   signedUri.URL.String(),
+		Bytes: metadata.Size(),
+	}, nil
+}
+
+func NewAzureRemoteURL(remoteDataStoreClient storage.DataStore, presignDuration time.Duration) interfaces.RemoteURLInterface {
+	return &AzureRemoteURL{
+		remoteDataStoreClient: remoteDataStoreClient,
+		presignDuration:       presignDuration,
+	}
+}

flyteadmin/pkg/data/implementations/azure_remote_url_test.go

@@ -0,0 +1,38 @@
+package implementations
+
+import (
+	"context"
+	commonMocks "github.com/flyteorg/flyte/flyteadmin/pkg/common/mocks"
+	"github.com/flyteorg/flyte/flytestdlib/storage"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+type mockMetadata struct{}
+
+func (m mockMetadata) Exists() bool {
+	return true
+}
+
+func (m mockMetadata) Size() int64 {
+	return 1
+}
+
+func (m mockMetadata) Etag() string {
+	return "etag"
+}
+
+func TestAzureGet(t *testing.T) {
+	inputUri := "abfs//test/data"
+	mockStorage := commonMocks.GetMockStorageClient()
+	mockStorage.ComposedProtobufStore.(*commonMocks.TestDataStore).HeadCb =
+		func(ctx context.Context, reference storage.DataReference) (storage.Metadata, error) {
+			return mockMetadata{}, nil
+		}
+	remoteUrl := AzureRemoteURL{
+		remoteDataStoreClient: *mockStorage, presignDuration: 1,
+	}
+
+	result, _ := remoteUrl.Get(context.TODO(), inputUri)
+	assert.Contains(t, inputUri, result.Url)
+}