Expose EndpointType parameter in swift storage driver

Signed-off-by: Cezar Sa Espinola <cezarsa@gmail.com>

registry/storage/driver/swift/swift.go

@@ -72,6 +72,7 @@ type Parameters struct {
 	AuthVersion         int
 	Container           string
 	Prefix              string
+	EndpointType        string
 	InsecureSkipVerify  bool
 	ChunkSize           int
 	SecretKey           string
@@ -182,6 +183,7 @@ func New(params Parameters) (*Driver, error) {
 		Domain:         params.Domain,
 		DomainId:       params.DomainID,
 		TrustId:        params.TrustID,
+		EndpointType:   swift.EndpointType(params.EndpointType),
 		Transport:      transport,
 		ConnectTimeout: 60 * time.Second,
 		Timeout:        15 * 60 * time.Second,

registry/storage/driver/swift/swift_test.go

@@ -34,6 +34,7 @@ func init() {
 		container          string
 		region             string
 		AuthVersion        int
+		endpointType       string
 		insecureSkipVerify bool
 		secretKey          string
 		accessKey          string
@@ -54,6 +55,7 @@ func init() {
 	container = os.Getenv("SWIFT_CONTAINER_NAME")
 	region = os.Getenv("SWIFT_REGION_NAME")
 	AuthVersion, _ = strconv.Atoi(os.Getenv("SWIFT_AUTH_VERSION"))
+	endpointType = os.Getenv("SWIFT_ENDPOINT_TYPE")
 	insecureSkipVerify, _ = strconv.ParseBool(os.Getenv("SWIFT_INSECURESKIPVERIFY"))
 	secretKey = os.Getenv("SWIFT_SECRET_KEY")
 	accessKey = os.Getenv("SWIFT_ACCESS_KEY")
@@ -90,6 +92,7 @@ func init() {
 			AuthVersion,
 			container,
 			root,
+			endpointType,
 			insecureSkipVerify,
 			defaultChunkSize,
 			secretKey,