migrate gplus to google oauth2 provider (#7885)

* migrate gplus to google oauth2 provider. this still provides support for old gplus connections.

* Update models/oauth2.go

Co-Authored-By: Antoine GIRARD <sapk@users.noreply.github.com>

* make vendor

4 files changed, 1541 insertions, 0 deletions

diff --git a/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go
new file mode 100644
index 0000000000..9a2ff77ab5
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go
@@ -0,0 +1,611 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google.golang.org/appengine/internal/app_identity/app_identity_service.proto
+
+package app_identity
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type AppIdentityServiceError_ErrorCode int32
+
+const (
+	AppIdentityServiceError_SUCCESS           AppIdentityServiceError_ErrorCode = 0
+	AppIdentityServiceError_UNKNOWN_SCOPE     AppIdentityServiceError_ErrorCode = 9
+	AppIdentityServiceError_BLOB_TOO_LARGE    AppIdentityServiceError_ErrorCode = 1000
+	AppIdentityServiceError_DEADLINE_EXCEEDED AppIdentityServiceError_ErrorCode = 1001
+	AppIdentityServiceError_NOT_A_VALID_APP   AppIdentityServiceError_ErrorCode = 1002
+	AppIdentityServiceError_UNKNOWN_ERROR     AppIdentityServiceError_ErrorCode = 1003
+	AppIdentityServiceError_NOT_ALLOWED       AppIdentityServiceError_ErrorCode = 1005
+	AppIdentityServiceError_NOT_IMPLEMENTED   AppIdentityServiceError_ErrorCode = 1006
+)
+
+var AppIdentityServiceError_ErrorCode_name = map[int32]string{
+	0:    "SUCCESS",
+	9:    "UNKNOWN_SCOPE",
+	1000: "BLOB_TOO_LARGE",
+	1001: "DEADLINE_EXCEEDED",
+	1002: "NOT_A_VALID_APP",
+	1003: "UNKNOWN_ERROR",
+	1005: "NOT_ALLOWED",
+	1006: "NOT_IMPLEMENTED",
+}
+var AppIdentityServiceError_ErrorCode_value = map[string]int32{
+	"SUCCESS":           0,
+	"UNKNOWN_SCOPE":     9,
+	"BLOB_TOO_LARGE":    1000,
+	"DEADLINE_EXCEEDED": 1001,
+	"NOT_A_VALID_APP":   1002,
+	"UNKNOWN_ERROR":     1003,
+	"NOT_ALLOWED":       1005,
+	"NOT_IMPLEMENTED":   1006,
+}
+
+func (x AppIdentityServiceError_ErrorCode) Enum() *AppIdentityServiceError_ErrorCode {
+	p := new(AppIdentityServiceError_ErrorCode)
+	*p = x
+	return p
+}
+func (x AppIdentityServiceError_ErrorCode) String() string {
+	return proto.EnumName(AppIdentityServiceError_ErrorCode_name, int32(x))
+}
+func (x *AppIdentityServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(AppIdentityServiceError_ErrorCode_value, data, "AppIdentityServiceError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = AppIdentityServiceError_ErrorCode(value)
+	return nil
+}
+func (AppIdentityServiceError_ErrorCode) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{0, 0}
+}
+
+type AppIdentityServiceError struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *AppIdentityServiceError) Reset()         { *m = AppIdentityServiceError{} }
+func (m *AppIdentityServiceError) String() string { return proto.CompactTextString(m) }
+func (*AppIdentityServiceError) ProtoMessage()    {}
+func (*AppIdentityServiceError) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{0}
+}
+func (m *AppIdentityServiceError) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_AppIdentityServiceError.Unmarshal(m, b)
+}
+func (m *AppIdentityServiceError) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_AppIdentityServiceError.Marshal(b, m, deterministic)
+}
+func (dst *AppIdentityServiceError) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_AppIdentityServiceError.Merge(dst, src)
+}
+func (m *AppIdentityServiceError) XXX_Size() int {
+	return xxx_messageInfo_AppIdentityServiceError.Size(m)
+}
+func (m *AppIdentityServiceError) XXX_DiscardUnknown() {
+	xxx_messageInfo_AppIdentityServiceError.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_AppIdentityServiceError proto.InternalMessageInfo
+
+type SignForAppRequest struct {
+	BytesToSign          []byte   `protobuf:"bytes,1,opt,name=bytes_to_sign,json=bytesToSign" json:"bytes_to_sign,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SignForAppRequest) Reset()         { *m = SignForAppRequest{} }
+func (m *SignForAppRequest) String() string { return proto.CompactTextString(m) }
+func (*SignForAppRequest) ProtoMessage()    {}
+func (*SignForAppRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{1}
+}
+func (m *SignForAppRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SignForAppRequest.Unmarshal(m, b)
+}
+func (m *SignForAppRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SignForAppRequest.Marshal(b, m, deterministic)
+}
+func (dst *SignForAppRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SignForAppRequest.Merge(dst, src)
+}
+func (m *SignForAppRequest) XXX_Size() int {
+	return xxx_messageInfo_SignForAppRequest.Size(m)
+}
+func (m *SignForAppRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_SignForAppRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SignForAppRequest proto.InternalMessageInfo
+
+func (m *SignForAppRequest) GetBytesToSign() []byte {
+	if m != nil {
+		return m.BytesToSign
+	}
+	return nil
+}
+
+type SignForAppResponse struct {
+	KeyName              *string  `protobuf:"bytes,1,opt,name=key_name,json=keyName" json:"key_name,omitempty"`
+	SignatureBytes       []byte   `protobuf:"bytes,2,opt,name=signature_bytes,json=signatureBytes" json:"signature_bytes,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SignForAppResponse) Reset()         { *m = SignForAppResponse{} }
+func (m *SignForAppResponse) String() string { return proto.CompactTextString(m) }
+func (*SignForAppResponse) ProtoMessage()    {}
+func (*SignForAppResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{2}
+}
+func (m *SignForAppResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SignForAppResponse.Unmarshal(m, b)
+}
+func (m *SignForAppResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SignForAppResponse.Marshal(b, m, deterministic)
+}
+func (dst *SignForAppResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SignForAppResponse.Merge(dst, src)
+}
+func (m *SignForAppResponse) XXX_Size() int {
+	return xxx_messageInfo_SignForAppResponse.Size(m)
+}
+func (m *SignForAppResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SignForAppResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SignForAppResponse proto.InternalMessageInfo
+
+func (m *SignForAppResponse) GetKeyName() string {
+	if m != nil && m.KeyName != nil {
+		return *m.KeyName
+	}
+	return ""
+}
+
+func (m *SignForAppResponse) GetSignatureBytes() []byte {
+	if m != nil {
+		return m.SignatureBytes
+	}
+	return nil
+}
+
+type GetPublicCertificateForAppRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetPublicCertificateForAppRequest) Reset()         { *m = GetPublicCertificateForAppRequest{} }
+func (m *GetPublicCertificateForAppRequest) String() string { return proto.CompactTextString(m) }
+func (*GetPublicCertificateForAppRequest) ProtoMessage()    {}
+func (*GetPublicCertificateForAppRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{3}
+}
+func (m *GetPublicCertificateForAppRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetPublicCertificateForAppRequest.Unmarshal(m, b)
+}
+func (m *GetPublicCertificateForAppRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetPublicCertificateForAppRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetPublicCertificateForAppRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetPublicCertificateForAppRequest.Merge(dst, src)
+}
+func (m *GetPublicCertificateForAppRequest) XXX_Size() int {
+	return xxx_messageInfo_GetPublicCertificateForAppRequest.Size(m)
+}
+func (m *GetPublicCertificateForAppRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetPublicCertificateForAppRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetPublicCertificateForAppRequest proto.InternalMessageInfo
+
+type PublicCertificate struct {
+	KeyName              *string  `protobuf:"bytes,1,opt,name=key_name,json=keyName" json:"key_name,omitempty"`
+	X509CertificatePem   *string  `protobuf:"bytes,2,opt,name=x509_certificate_pem,json=x509CertificatePem" json:"x509_certificate_pem,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *PublicCertificate) Reset()         { *m = PublicCertificate{} }
+func (m *PublicCertificate) String() string { return proto.CompactTextString(m) }
+func (*PublicCertificate) ProtoMessage()    {}
+func (*PublicCertificate) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{4}
+}
+func (m *PublicCertificate) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_PublicCertificate.Unmarshal(m, b)
+}
+func (m *PublicCertificate) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_PublicCertificate.Marshal(b, m, deterministic)
+}
+func (dst *PublicCertificate) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_PublicCertificate.Merge(dst, src)
+}
+func (m *PublicCertificate) XXX_Size() int {
+	return xxx_messageInfo_PublicCertificate.Size(m)
+}
+func (m *PublicCertificate) XXX_DiscardUnknown() {
+	xxx_messageInfo_PublicCertificate.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_PublicCertificate proto.InternalMessageInfo
+
+func (m *PublicCertificate) GetKeyName() string {
+	if m != nil && m.KeyName != nil {
+		return *m.KeyName
+	}
+	return ""
+}
+
+func (m *PublicCertificate) GetX509CertificatePem() string {
+	if m != nil && m.X509CertificatePem != nil {
+		return *m.X509CertificatePem
+	}
+	return ""
+}
+
+type GetPublicCertificateForAppResponse struct {
+	PublicCertificateList      []*PublicCertificate `protobuf:"bytes,1,rep,name=public_certificate_list,json=publicCertificateList" json:"public_certificate_list,omitempty"`
+	MaxClientCacheTimeInSecond *int64               `protobuf:"varint,2,opt,name=max_client_cache_time_in_second,json=maxClientCacheTimeInSecond" json:"max_client_cache_time_in_second,omitempty"`
+	XXX_NoUnkeyedLiteral       struct{}             `json:"-"`
+	XXX_unrecognized           []byte               `json:"-"`
+	XXX_sizecache              int32                `json:"-"`
+}
+
+func (m *GetPublicCertificateForAppResponse) Reset()         { *m = GetPublicCertificateForAppResponse{} }
+func (m *GetPublicCertificateForAppResponse) String() string { return proto.CompactTextString(m) }
+func (*GetPublicCertificateForAppResponse) ProtoMessage()    {}
+func (*GetPublicCertificateForAppResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{5}
+}
+func (m *GetPublicCertificateForAppResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetPublicCertificateForAppResponse.Unmarshal(m, b)
+}
+func (m *GetPublicCertificateForAppResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetPublicCertificateForAppResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetPublicCertificateForAppResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetPublicCertificateForAppResponse.Merge(dst, src)
+}
+func (m *GetPublicCertificateForAppResponse) XXX_Size() int {
+	return xxx_messageInfo_GetPublicCertificateForAppResponse.Size(m)
+}
+func (m *GetPublicCertificateForAppResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetPublicCertificateForAppResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetPublicCertificateForAppResponse proto.InternalMessageInfo
+
+func (m *GetPublicCertificateForAppResponse) GetPublicCertificateList() []*PublicCertificate {
+	if m != nil {
+		return m.PublicCertificateList
+	}
+	return nil
+}
+
+func (m *GetPublicCertificateForAppResponse) GetMaxClientCacheTimeInSecond() int64 {
+	if m != nil && m.MaxClientCacheTimeInSecond != nil {
+		return *m.MaxClientCacheTimeInSecond
+	}
+	return 0
+}
+
+type GetServiceAccountNameRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetServiceAccountNameRequest) Reset()         { *m = GetServiceAccountNameRequest{} }
+func (m *GetServiceAccountNameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetServiceAccountNameRequest) ProtoMessage()    {}
+func (*GetServiceAccountNameRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{6}
+}
+func (m *GetServiceAccountNameRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetServiceAccountNameRequest.Unmarshal(m, b)
+}
+func (m *GetServiceAccountNameRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetServiceAccountNameRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetServiceAccountNameRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetServiceAccountNameRequest.Merge(dst, src)
+}
+func (m *GetServiceAccountNameRequest) XXX_Size() int {
+	return xxx_messageInfo_GetServiceAccountNameRequest.Size(m)
+}
+func (m *GetServiceAccountNameRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetServiceAccountNameRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetServiceAccountNameRequest proto.InternalMessageInfo
+
+type GetServiceAccountNameResponse struct {
+	ServiceAccountName   *string  `protobuf:"bytes,1,opt,name=service_account_name,json=serviceAccountName" json:"service_account_name,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetServiceAccountNameResponse) Reset()         { *m = GetServiceAccountNameResponse{} }
+func (m *GetServiceAccountNameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetServiceAccountNameResponse) ProtoMessage()    {}
+func (*GetServiceAccountNameResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{7}
+}
+func (m *GetServiceAccountNameResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetServiceAccountNameResponse.Unmarshal(m, b)
+}
+func (m *GetServiceAccountNameResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetServiceAccountNameResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetServiceAccountNameResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetServiceAccountNameResponse.Merge(dst, src)
+}
+func (m *GetServiceAccountNameResponse) XXX_Size() int {
+	return xxx_messageInfo_GetServiceAccountNameResponse.Size(m)
+}
+func (m *GetServiceAccountNameResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetServiceAccountNameResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetServiceAccountNameResponse proto.InternalMessageInfo
+
+func (m *GetServiceAccountNameResponse) GetServiceAccountName() string {
+	if m != nil && m.ServiceAccountName != nil {
+		return *m.ServiceAccountName
+	}
+	return ""
+}
+
+type GetAccessTokenRequest struct {
+	Scope                []string `protobuf:"bytes,1,rep,name=scope" json:"scope,omitempty"`
+	ServiceAccountId     *int64   `protobuf:"varint,2,opt,name=service_account_id,json=serviceAccountId" json:"service_account_id,omitempty"`
+	ServiceAccountName   *string  `protobuf:"bytes,3,opt,name=service_account_name,json=serviceAccountName" json:"service_account_name,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetAccessTokenRequest) Reset()         { *m = GetAccessTokenRequest{} }
+func (m *GetAccessTokenRequest) String() string { return proto.CompactTextString(m) }
+func (*GetAccessTokenRequest) ProtoMessage()    {}
+func (*GetAccessTokenRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{8}
+}
+func (m *GetAccessTokenRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetAccessTokenRequest.Unmarshal(m, b)
+}
+func (m *GetAccessTokenRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetAccessTokenRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetAccessTokenRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetAccessTokenRequest.Merge(dst, src)
+}
+func (m *GetAccessTokenRequest) XXX_Size() int {
+	return xxx_messageInfo_GetAccessTokenRequest.Size(m)
+}
+func (m *GetAccessTokenRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetAccessTokenRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetAccessTokenRequest proto.InternalMessageInfo
+
+func (m *GetAccessTokenRequest) GetScope() []string {
+	if m != nil {
+		return m.Scope
+	}
+	return nil
+}
+
+func (m *GetAccessTokenRequest) GetServiceAccountId() int64 {
+	if m != nil && m.ServiceAccountId != nil {
+		return *m.ServiceAccountId
+	}
+	return 0
+}
+
+func (m *GetAccessTokenRequest) GetServiceAccountName() string {
+	if m != nil && m.ServiceAccountName != nil {
+		return *m.ServiceAccountName
+	}
+	return ""
+}
+
+type GetAccessTokenResponse struct {
+	AccessToken          *string  `protobuf:"bytes,1,opt,name=access_token,json=accessToken" json:"access_token,omitempty"`
+	ExpirationTime       *int64   `protobuf:"varint,2,opt,name=expiration_time,json=expirationTime" json:"expiration_time,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetAccessTokenResponse) Reset()         { *m = GetAccessTokenResponse{} }
+func (m *GetAccessTokenResponse) String() string { return proto.CompactTextString(m) }
+func (*GetAccessTokenResponse) ProtoMessage()    {}
+func (*GetAccessTokenResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{9}
+}
+func (m *GetAccessTokenResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetAccessTokenResponse.Unmarshal(m, b)
+}
+func (m *GetAccessTokenResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetAccessTokenResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetAccessTokenResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetAccessTokenResponse.Merge(dst, src)
+}
+func (m *GetAccessTokenResponse) XXX_Size() int {
+	return xxx_messageInfo_GetAccessTokenResponse.Size(m)
+}
+func (m *GetAccessTokenResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetAccessTokenResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetAccessTokenResponse proto.InternalMessageInfo
+
+func (m *GetAccessTokenResponse) GetAccessToken() string {
+	if m != nil && m.AccessToken != nil {
+		return *m.AccessToken
+	}
+	return ""
+}
+
+func (m *GetAccessTokenResponse) GetExpirationTime() int64 {
+	if m != nil && m.ExpirationTime != nil {
+		return *m.ExpirationTime
+	}
+	return 0
+}
+
+type GetDefaultGcsBucketNameRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetDefaultGcsBucketNameRequest) Reset()         { *m = GetDefaultGcsBucketNameRequest{} }
+func (m *GetDefaultGcsBucketNameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultGcsBucketNameRequest) ProtoMessage()    {}
+func (*GetDefaultGcsBucketNameRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{10}
+}
+func (m *GetDefaultGcsBucketNameRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetDefaultGcsBucketNameRequest.Unmarshal(m, b)
+}
+func (m *GetDefaultGcsBucketNameRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetDefaultGcsBucketNameRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetDefaultGcsBucketNameRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetDefaultGcsBucketNameRequest.Merge(dst, src)
+}
+func (m *GetDefaultGcsBucketNameRequest) XXX_Size() int {
+	return xxx_messageInfo_GetDefaultGcsBucketNameRequest.Size(m)
+}
+func (m *GetDefaultGcsBucketNameRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetDefaultGcsBucketNameRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetDefaultGcsBucketNameRequest proto.InternalMessageInfo
+
+type GetDefaultGcsBucketNameResponse struct {
+	DefaultGcsBucketName *string  `protobuf:"bytes,1,opt,name=default_gcs_bucket_name,json=defaultGcsBucketName" json:"default_gcs_bucket_name,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetDefaultGcsBucketNameResponse) Reset()         { *m = GetDefaultGcsBucketNameResponse{} }
+func (m *GetDefaultGcsBucketNameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultGcsBucketNameResponse) ProtoMessage()    {}
+func (*GetDefaultGcsBucketNameResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_app_identity_service_08a6e3f74b04cfa4, []int{11}
+}
+func (m *GetDefaultGcsBucketNameResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetDefaultGcsBucketNameResponse.Unmarshal(m, b)
+}
+func (m *GetDefaultGcsBucketNameResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetDefaultGcsBucketNameResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetDefaultGcsBucketNameResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetDefaultGcsBucketNameResponse.Merge(dst, src)
+}
+func (m *GetDefaultGcsBucketNameResponse) XXX_Size() int {
+	return xxx_messageInfo_GetDefaultGcsBucketNameResponse.Size(m)
+}
+func (m *GetDefaultGcsBucketNameResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetDefaultGcsBucketNameResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetDefaultGcsBucketNameResponse proto.InternalMessageInfo
+
+func (m *GetDefaultGcsBucketNameResponse) GetDefaultGcsBucketName() string {
+	if m != nil && m.DefaultGcsBucketName != nil {
+		return *m.DefaultGcsBucketName
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*AppIdentityServiceError)(nil), "appengine.AppIdentityServiceError")
+	proto.RegisterType((*SignForAppRequest)(nil), "appengine.SignForAppRequest")
+	proto.RegisterType((*SignForAppResponse)(nil), "appengine.SignForAppResponse")
+	proto.RegisterType((*GetPublicCertificateForAppRequest)(nil), "appengine.GetPublicCertificateForAppRequest")
+	proto.RegisterType((*PublicCertificate)(nil), "appengine.PublicCertificate")
+	proto.RegisterType((*GetPublicCertificateForAppResponse)(nil), "appengine.GetPublicCertificateForAppResponse")
+	proto.RegisterType((*GetServiceAccountNameRequest)(nil), "appengine.GetServiceAccountNameRequest")
+	proto.RegisterType((*GetServiceAccountNameResponse)(nil), "appengine.GetServiceAccountNameResponse")
+	proto.RegisterType((*GetAccessTokenRequest)(nil), "appengine.GetAccessTokenRequest")
+	proto.RegisterType((*GetAccessTokenResponse)(nil), "appengine.GetAccessTokenResponse")
+	proto.RegisterType((*GetDefaultGcsBucketNameRequest)(nil), "appengine.GetDefaultGcsBucketNameRequest")
+	proto.RegisterType((*GetDefaultGcsBucketNameResponse)(nil), "appengine.GetDefaultGcsBucketNameResponse")
+}
+
+func init() {
+	proto.RegisterFile("google.golang.org/appengine/internal/app_identity/app_identity_service.proto", fileDescriptor_app_identity_service_08a6e3f74b04cfa4)
+}
+
+var fileDescriptor_app_identity_service_08a6e3f74b04cfa4 = []byte{
+	// 676 bytes of a gzipped FileDescriptorProto
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+	0xf3, 0x04, 0x00, 0x00,
+}
diff --git a/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto
new file mode 100644
index 0000000000..19610ca5b7
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto
@@ -0,0 +1,64 @@
+syntax = "proto2";
+option go_package = "app_identity";
+
+package appengine;
+
+message AppIdentityServiceError {
+  enum ErrorCode {
+    SUCCESS = 0;
+    UNKNOWN_SCOPE = 9;
+    BLOB_TOO_LARGE = 1000;
+    DEADLINE_EXCEEDED = 1001;
+    NOT_A_VALID_APP = 1002;
+    UNKNOWN_ERROR = 1003;
+    NOT_ALLOWED = 1005;
+    NOT_IMPLEMENTED = 1006;
+  }
+}
+
+message SignForAppRequest {
+  optional bytes bytes_to_sign = 1;
+}
+
+message SignForAppResponse {
+  optional string key_name = 1;
+  optional bytes signature_bytes = 2;
+}
+
+message GetPublicCertificateForAppRequest {
+}
+
+message PublicCertificate {
+  optional string key_name = 1;
+  optional string x509_certificate_pem = 2;
+}
+
+message GetPublicCertificateForAppResponse {
+  repeated PublicCertificate public_certificate_list = 1;
+  optional int64 max_client_cache_time_in_second = 2;
+}
+
+message GetServiceAccountNameRequest {
+}
+
+message GetServiceAccountNameResponse {
+  optional string service_account_name = 1;
+}
+
+message GetAccessTokenRequest {
+  repeated string scope = 1;
+  optional int64 service_account_id = 2;
+  optional string service_account_name = 3;
+}
+
+message GetAccessTokenResponse {
+  optional string access_token = 1;
+  optional int64 expiration_time = 2;
+}
+
+message GetDefaultGcsBucketNameRequest {
+}
+
+message GetDefaultGcsBucketNameResponse {
+  optional string default_gcs_bucket_name = 1;
+}
diff --git a/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go b/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go
new file mode 100644
index 0000000000..ddfc0c04a1
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go
@@ -0,0 +1,786 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google.golang.org/appengine/internal/modules/modules_service.proto
+
+package modules
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ModulesServiceError_ErrorCode int32
+
+const (
+	ModulesServiceError_OK                ModulesServiceError_ErrorCode = 0
+	ModulesServiceError_INVALID_MODULE    ModulesServiceError_ErrorCode = 1
+	ModulesServiceError_INVALID_VERSION   ModulesServiceError_ErrorCode = 2
+	ModulesServiceError_INVALID_INSTANCES ModulesServiceError_ErrorCode = 3
+	ModulesServiceError_TRANSIENT_ERROR   ModulesServiceError_ErrorCode = 4
+	ModulesServiceError_UNEXPECTED_STATE  ModulesServiceError_ErrorCode = 5
+)
+
+var ModulesServiceError_ErrorCode_name = map[int32]string{
+	0: "OK",
+	1: "INVALID_MODULE",
+	2: "INVALID_VERSION",
+	3: "INVALID_INSTANCES",
+	4: "TRANSIENT_ERROR",
+	5: "UNEXPECTED_STATE",
+}
+var ModulesServiceError_ErrorCode_value = map[string]int32{
+	"OK":                0,
+	"INVALID_MODULE":    1,
+	"INVALID_VERSION":   2,
+	"INVALID_INSTANCES": 3,
+	"TRANSIENT_ERROR":   4,
+	"UNEXPECTED_STATE":  5,
+}
+
+func (x ModulesServiceError_ErrorCode) Enum() *ModulesServiceError_ErrorCode {
+	p := new(ModulesServiceError_ErrorCode)
+	*p = x
+	return p
+}
+func (x ModulesServiceError_ErrorCode) String() string {
+	return proto.EnumName(ModulesServiceError_ErrorCode_name, int32(x))
+}
+func (x *ModulesServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(ModulesServiceError_ErrorCode_value, data, "ModulesServiceError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = ModulesServiceError_ErrorCode(value)
+	return nil
+}
+func (ModulesServiceError_ErrorCode) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{0, 0}
+}
+
+type ModulesServiceError struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ModulesServiceError) Reset()         { *m = ModulesServiceError{} }
+func (m *ModulesServiceError) String() string { return proto.CompactTextString(m) }
+func (*ModulesServiceError) ProtoMessage()    {}
+func (*ModulesServiceError) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{0}
+}
+func (m *ModulesServiceError) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ModulesServiceError.Unmarshal(m, b)
+}
+func (m *ModulesServiceError) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ModulesServiceError.Marshal(b, m, deterministic)
+}
+func (dst *ModulesServiceError) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ModulesServiceError.Merge(dst, src)
+}
+func (m *ModulesServiceError) XXX_Size() int {
+	return xxx_messageInfo_ModulesServiceError.Size(m)
+}
+func (m *ModulesServiceError) XXX_DiscardUnknown() {
+	xxx_messageInfo_ModulesServiceError.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ModulesServiceError proto.InternalMessageInfo
+
+type GetModulesRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetModulesRequest) Reset()         { *m = GetModulesRequest{} }
+func (m *GetModulesRequest) String() string { return proto.CompactTextString(m) }
+func (*GetModulesRequest) ProtoMessage()    {}
+func (*GetModulesRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{1}
+}
+func (m *GetModulesRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetModulesRequest.Unmarshal(m, b)
+}
+func (m *GetModulesRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetModulesRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetModulesRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetModulesRequest.Merge(dst, src)
+}
+func (m *GetModulesRequest) XXX_Size() int {
+	return xxx_messageInfo_GetModulesRequest.Size(m)
+}
+func (m *GetModulesRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetModulesRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetModulesRequest proto.InternalMessageInfo
+
+type GetModulesResponse struct {
+	Module               []string `protobuf:"bytes,1,rep,name=module" json:"module,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetModulesResponse) Reset()         { *m = GetModulesResponse{} }
+func (m *GetModulesResponse) String() string { return proto.CompactTextString(m) }
+func (*GetModulesResponse) ProtoMessage()    {}
+func (*GetModulesResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{2}
+}
+func (m *GetModulesResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetModulesResponse.Unmarshal(m, b)
+}
+func (m *GetModulesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetModulesResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetModulesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetModulesResponse.Merge(dst, src)
+}
+func (m *GetModulesResponse) XXX_Size() int {
+	return xxx_messageInfo_GetModulesResponse.Size(m)
+}
+func (m *GetModulesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetModulesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetModulesResponse proto.InternalMessageInfo
+
+func (m *GetModulesResponse) GetModule() []string {
+	if m != nil {
+		return m.Module
+	}
+	return nil
+}
+
+type GetVersionsRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetVersionsRequest) Reset()         { *m = GetVersionsRequest{} }
+func (m *GetVersionsRequest) String() string { return proto.CompactTextString(m) }
+func (*GetVersionsRequest) ProtoMessage()    {}
+func (*GetVersionsRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{3}
+}
+func (m *GetVersionsRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetVersionsRequest.Unmarshal(m, b)
+}
+func (m *GetVersionsRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetVersionsRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetVersionsRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetVersionsRequest.Merge(dst, src)
+}
+func (m *GetVersionsRequest) XXX_Size() int {
+	return xxx_messageInfo_GetVersionsRequest.Size(m)
+}
+func (m *GetVersionsRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetVersionsRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetVersionsRequest proto.InternalMessageInfo
+
+func (m *GetVersionsRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+type GetVersionsResponse struct {
+	Version              []string `protobuf:"bytes,1,rep,name=version" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetVersionsResponse) Reset()         { *m = GetVersionsResponse{} }
+func (m *GetVersionsResponse) String() string { return proto.CompactTextString(m) }
+func (*GetVersionsResponse) ProtoMessage()    {}
+func (*GetVersionsResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{4}
+}
+func (m *GetVersionsResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetVersionsResponse.Unmarshal(m, b)
+}
+func (m *GetVersionsResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetVersionsResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetVersionsResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetVersionsResponse.Merge(dst, src)
+}
+func (m *GetVersionsResponse) XXX_Size() int {
+	return xxx_messageInfo_GetVersionsResponse.Size(m)
+}
+func (m *GetVersionsResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetVersionsResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetVersionsResponse proto.InternalMessageInfo
+
+func (m *GetVersionsResponse) GetVersion() []string {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type GetDefaultVersionRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetDefaultVersionRequest) Reset()         { *m = GetDefaultVersionRequest{} }
+func (m *GetDefaultVersionRequest) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultVersionRequest) ProtoMessage()    {}
+func (*GetDefaultVersionRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{5}
+}
+func (m *GetDefaultVersionRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetDefaultVersionRequest.Unmarshal(m, b)
+}
+func (m *GetDefaultVersionRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetDefaultVersionRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetDefaultVersionRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetDefaultVersionRequest.Merge(dst, src)
+}
+func (m *GetDefaultVersionRequest) XXX_Size() int {
+	return xxx_messageInfo_GetDefaultVersionRequest.Size(m)
+}
+func (m *GetDefaultVersionRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetDefaultVersionRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetDefaultVersionRequest proto.InternalMessageInfo
+
+func (m *GetDefaultVersionRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+type GetDefaultVersionResponse struct {
+	Version              *string  `protobuf:"bytes,1,req,name=version" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetDefaultVersionResponse) Reset()         { *m = GetDefaultVersionResponse{} }
+func (m *GetDefaultVersionResponse) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultVersionResponse) ProtoMessage()    {}
+func (*GetDefaultVersionResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{6}
+}
+func (m *GetDefaultVersionResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetDefaultVersionResponse.Unmarshal(m, b)
+}
+func (m *GetDefaultVersionResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetDefaultVersionResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetDefaultVersionResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetDefaultVersionResponse.Merge(dst, src)
+}
+func (m *GetDefaultVersionResponse) XXX_Size() int {
+	return xxx_messageInfo_GetDefaultVersionResponse.Size(m)
+}
+func (m *GetDefaultVersionResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetDefaultVersionResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetDefaultVersionResponse proto.InternalMessageInfo
+
+func (m *GetDefaultVersionResponse) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type GetNumInstancesRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version              *string  `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetNumInstancesRequest) Reset()         { *m = GetNumInstancesRequest{} }
+func (m *GetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
+func (*GetNumInstancesRequest) ProtoMessage()    {}
+func (*GetNumInstancesRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{7}
+}
+func (m *GetNumInstancesRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetNumInstancesRequest.Unmarshal(m, b)
+}
+func (m *GetNumInstancesRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetNumInstancesRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetNumInstancesRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetNumInstancesRequest.Merge(dst, src)
+}
+func (m *GetNumInstancesRequest) XXX_Size() int {
+	return xxx_messageInfo_GetNumInstancesRequest.Size(m)
+}
+func (m *GetNumInstancesRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetNumInstancesRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetNumInstancesRequest proto.InternalMessageInfo
+
+func (m *GetNumInstancesRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *GetNumInstancesRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type GetNumInstancesResponse struct {
+	Instances            *int64   `protobuf:"varint,1,req,name=instances" json:"instances,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetNumInstancesResponse) Reset()         { *m = GetNumInstancesResponse{} }
+func (m *GetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
+func (*GetNumInstancesResponse) ProtoMessage()    {}
+func (*GetNumInstancesResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{8}
+}
+func (m *GetNumInstancesResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetNumInstancesResponse.Unmarshal(m, b)
+}
+func (m *GetNumInstancesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetNumInstancesResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetNumInstancesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetNumInstancesResponse.Merge(dst, src)
+}
+func (m *GetNumInstancesResponse) XXX_Size() int {
+	return xxx_messageInfo_GetNumInstancesResponse.Size(m)
+}
+func (m *GetNumInstancesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetNumInstancesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetNumInstancesResponse proto.InternalMessageInfo
+
+func (m *GetNumInstancesResponse) GetInstances() int64 {
+	if m != nil && m.Instances != nil {
+		return *m.Instances
+	}
+	return 0
+}
+
+type SetNumInstancesRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version              *string  `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	Instances            *int64   `protobuf:"varint,3,req,name=instances" json:"instances,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SetNumInstancesRequest) Reset()         { *m = SetNumInstancesRequest{} }
+func (m *SetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
+func (*SetNumInstancesRequest) ProtoMessage()    {}
+func (*SetNumInstancesRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{9}
+}
+func (m *SetNumInstancesRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SetNumInstancesRequest.Unmarshal(m, b)
+}
+func (m *SetNumInstancesRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SetNumInstancesRequest.Marshal(b, m, deterministic)
+}
+func (dst *SetNumInstancesRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SetNumInstancesRequest.Merge(dst, src)
+}
+func (m *SetNumInstancesRequest) XXX_Size() int {
+	return xxx_messageInfo_SetNumInstancesRequest.Size(m)
+}
+func (m *SetNumInstancesRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_SetNumInstancesRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SetNumInstancesRequest proto.InternalMessageInfo
+
+func (m *SetNumInstancesRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *SetNumInstancesRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+func (m *SetNumInstancesRequest) GetInstances() int64 {
+	if m != nil && m.Instances != nil {
+		return *m.Instances
+	}
+	return 0
+}
+
+type SetNumInstancesResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SetNumInstancesResponse) Reset()         { *m = SetNumInstancesResponse{} }
+func (m *SetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
+func (*SetNumInstancesResponse) ProtoMessage()    {}
+func (*SetNumInstancesResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{10}
+}
+func (m *SetNumInstancesResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SetNumInstancesResponse.Unmarshal(m, b)
+}
+func (m *SetNumInstancesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SetNumInstancesResponse.Marshal(b, m, deterministic)
+}
+func (dst *SetNumInstancesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SetNumInstancesResponse.Merge(dst, src)
+}
+func (m *SetNumInstancesResponse) XXX_Size() int {
+	return xxx_messageInfo_SetNumInstancesResponse.Size(m)
+}
+func (m *SetNumInstancesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SetNumInstancesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SetNumInstancesResponse proto.InternalMessageInfo
+
+type StartModuleRequest struct {
+	Module               *string  `protobuf:"bytes,1,req,name=module" json:"module,omitempty"`
+	Version              *string  `protobuf:"bytes,2,req,name=version" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *StartModuleRequest) Reset()         { *m = StartModuleRequest{} }
+func (m *StartModuleRequest) String() string { return proto.CompactTextString(m) }
+func (*StartModuleRequest) ProtoMessage()    {}
+func (*StartModuleRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{11}
+}
+func (m *StartModuleRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StartModuleRequest.Unmarshal(m, b)
+}
+func (m *StartModuleRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StartModuleRequest.Marshal(b, m, deterministic)
+}
+func (dst *StartModuleRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StartModuleRequest.Merge(dst, src)
+}
+func (m *StartModuleRequest) XXX_Size() int {
+	return xxx_messageInfo_StartModuleRequest.Size(m)
+}
+func (m *StartModuleRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_StartModuleRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StartModuleRequest proto.InternalMessageInfo
+
+func (m *StartModuleRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *StartModuleRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type StartModuleResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *StartModuleResponse) Reset()         { *m = StartModuleResponse{} }
+func (m *StartModuleResponse) String() string { return proto.CompactTextString(m) }
+func (*StartModuleResponse) ProtoMessage()    {}
+func (*StartModuleResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{12}
+}
+func (m *StartModuleResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StartModuleResponse.Unmarshal(m, b)
+}
+func (m *StartModuleResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StartModuleResponse.Marshal(b, m, deterministic)
+}
+func (dst *StartModuleResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StartModuleResponse.Merge(dst, src)
+}
+func (m *StartModuleResponse) XXX_Size() int {
+	return xxx_messageInfo_StartModuleResponse.Size(m)
+}
+func (m *StartModuleResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_StartModuleResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StartModuleResponse proto.InternalMessageInfo
+
+type StopModuleRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version              *string  `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *StopModuleRequest) Reset()         { *m = StopModuleRequest{} }
+func (m *StopModuleRequest) String() string { return proto.CompactTextString(m) }
+func (*StopModuleRequest) ProtoMessage()    {}
+func (*StopModuleRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{13}
+}
+func (m *StopModuleRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StopModuleRequest.Unmarshal(m, b)
+}
+func (m *StopModuleRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StopModuleRequest.Marshal(b, m, deterministic)
+}
+func (dst *StopModuleRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StopModuleRequest.Merge(dst, src)
+}
+func (m *StopModuleRequest) XXX_Size() int {
+	return xxx_messageInfo_StopModuleRequest.Size(m)
+}
+func (m *StopModuleRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_StopModuleRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StopModuleRequest proto.InternalMessageInfo
+
+func (m *StopModuleRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *StopModuleRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type StopModuleResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *StopModuleResponse) Reset()         { *m = StopModuleResponse{} }
+func (m *StopModuleResponse) String() string { return proto.CompactTextString(m) }
+func (*StopModuleResponse) ProtoMessage()    {}
+func (*StopModuleResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{14}
+}
+func (m *StopModuleResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StopModuleResponse.Unmarshal(m, b)
+}
+func (m *StopModuleResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StopModuleResponse.Marshal(b, m, deterministic)
+}
+func (dst *StopModuleResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StopModuleResponse.Merge(dst, src)
+}
+func (m *StopModuleResponse) XXX_Size() int {
+	return xxx_messageInfo_StopModuleResponse.Size(m)
+}
+func (m *StopModuleResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_StopModuleResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StopModuleResponse proto.InternalMessageInfo
+
+type GetHostnameRequest struct {
+	Module               *string  `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version              *string  `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	Instance             *string  `protobuf:"bytes,3,opt,name=instance" json:"instance,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetHostnameRequest) Reset()         { *m = GetHostnameRequest{} }
+func (m *GetHostnameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetHostnameRequest) ProtoMessage()    {}
+func (*GetHostnameRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{15}
+}
+func (m *GetHostnameRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetHostnameRequest.Unmarshal(m, b)
+}
+func (m *GetHostnameRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetHostnameRequest.Marshal(b, m, deterministic)
+}
+func (dst *GetHostnameRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetHostnameRequest.Merge(dst, src)
+}
+func (m *GetHostnameRequest) XXX_Size() int {
+	return xxx_messageInfo_GetHostnameRequest.Size(m)
+}
+func (m *GetHostnameRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetHostnameRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetHostnameRequest proto.InternalMessageInfo
+
+func (m *GetHostnameRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *GetHostnameRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+func (m *GetHostnameRequest) GetInstance() string {
+	if m != nil && m.Instance != nil {
+		return *m.Instance
+	}
+	return ""
+}
+
+type GetHostnameResponse struct {
+	Hostname             *string  `protobuf:"bytes,1,req,name=hostname" json:"hostname,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *GetHostnameResponse) Reset()         { *m = GetHostnameResponse{} }
+func (m *GetHostnameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetHostnameResponse) ProtoMessage()    {}
+func (*GetHostnameResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_modules_service_9cd3bffe4e91c59a, []int{16}
+}
+func (m *GetHostnameResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_GetHostnameResponse.Unmarshal(m, b)
+}
+func (m *GetHostnameResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_GetHostnameResponse.Marshal(b, m, deterministic)
+}
+func (dst *GetHostnameResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_GetHostnameResponse.Merge(dst, src)
+}
+func (m *GetHostnameResponse) XXX_Size() int {
+	return xxx_messageInfo_GetHostnameResponse.Size(m)
+}
+func (m *GetHostnameResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_GetHostnameResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_GetHostnameResponse proto.InternalMessageInfo
+
+func (m *GetHostnameResponse) GetHostname() string {
+	if m != nil && m.Hostname != nil {
+		return *m.Hostname
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*ModulesServiceError)(nil), "appengine.ModulesServiceError")
+	proto.RegisterType((*GetModulesRequest)(nil), "appengine.GetModulesRequest")
+	proto.RegisterType((*GetModulesResponse)(nil), "appengine.GetModulesResponse")
+	proto.RegisterType((*GetVersionsRequest)(nil), "appengine.GetVersionsRequest")
+	proto.RegisterType((*GetVersionsResponse)(nil), "appengine.GetVersionsResponse")
+	proto.RegisterType((*GetDefaultVersionRequest)(nil), "appengine.GetDefaultVersionRequest")
+	proto.RegisterType((*GetDefaultVersionResponse)(nil), "appengine.GetDefaultVersionResponse")
+	proto.RegisterType((*GetNumInstancesRequest)(nil), "appengine.GetNumInstancesRequest")
+	proto.RegisterType((*GetNumInstancesResponse)(nil), "appengine.GetNumInstancesResponse")
+	proto.RegisterType((*SetNumInstancesRequest)(nil), "appengine.SetNumInstancesRequest")
+	proto.RegisterType((*SetNumInstancesResponse)(nil), "appengine.SetNumInstancesResponse")
+	proto.RegisterType((*StartModuleRequest)(nil), "appengine.StartModuleRequest")
+	proto.RegisterType((*StartModuleResponse)(nil), "appengine.StartModuleResponse")
+	proto.RegisterType((*StopModuleRequest)(nil), "appengine.StopModuleRequest")
+	proto.RegisterType((*StopModuleResponse)(nil), "appengine.StopModuleResponse")
+	proto.RegisterType((*GetHostnameRequest)(nil), "appengine.GetHostnameRequest")
+	proto.RegisterType((*GetHostnameResponse)(nil), "appengine.GetHostnameResponse")
+}
+
+func init() {
+	proto.RegisterFile("google.golang.org/appengine/internal/modules/modules_service.proto", fileDescriptor_modules_service_9cd3bffe4e91c59a)
+}
+
+var fileDescriptor_modules_service_9cd3bffe4e91c59a = []byte{
+	// 457 bytes of a gzipped FileDescriptorProto
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+	0xc3, 0x6d, 0xe0, 0x5d, 0xd8, 0xbf, 0x5d, 0x6a, 0x86, 0x6e, 0xcb, 0xf0, 0x0d, 0x74, 0xc7, 0xa8,
+	0x47, 0xf8, 0x3d, 0x5b, 0x94, 0x76, 0xdf, 0xae, 0x26, 0x6f, 0xe1, 0x64, 0xcb, 0x9e, 0x6d, 0xad,
+	0x9c, 0xcd, 0x56, 0x1f, 0xa1, 0x33, 0x46, 0x1d, 0x2f, 0xe6, 0x11, 0x57, 0x3a, 0xe3, 0x57, 0xb8,
+	0xeb, 0x34, 0x9b, 0x2c, 0xa7, 0x5e, 0x58, 0xb1, 0xde, 0xc1, 0xf1, 0x5f, 0x2c, 0x13, 0xe0, 0x39,
+	0x78, 0x85, 0x15, 0xeb, 0x08, 0x6e, 0xb2, 0x16, 0xc2, 0x1b, 0xe8, 0xb0, 0x07, 0x0a, 0xd1, 0xec,
+	0xe4, 0xfe, 0xd9, 0xe9, 0x04, 0x8e, 0xd9, 0xf6, 0x88, 0xe1, 0x7b, 0x20, 0x4c, 0x67, 0xd2, 0xdc,
+	0x81, 0x6d, 0x01, 0x9c, 0xfb, 0x02, 0x34, 0x26, 0x7a, 0x04, 0x41, 0x83, 0x63, 0xf0, 0x14, 0xda,
+	0x4c, 0x8b, 0xea, 0x7e, 0xfa, 0xbf, 0xcd, 0xf8, 0xf0, 0x2e, 0xe5, 0x1a, 0x63, 0xe0, 0xdf, 0xea,
+	0xfb, 0xf8, 0x41, 0x28, 0xcd, 0xb3, 0xf9, 0xff, 0xd3, 0xc9, 0x29, 0x1c, 0xd8, 0x59, 0x75, 0xdd,
+	0x7a, 0x69, 0x55, 0x87, 0xaf, 0xeb, 0x5b, 0xbc, 0xee, 0x61, 0xbe, 0xec, 0x29, 0x1c, 0xdc, 0x18,
+	0xcd, 0x8c, 0x68, 0x55, 0x9f, 0x79, 0x5f, 0xf7, 0xcd, 0x5f, 0xe2, 0x77, 0x00, 0x00, 0x00, 0xff,
+	0xff, 0x6e, 0xbc, 0xe0, 0x61, 0x5c, 0x04, 0x00, 0x00,
+}
diff --git a/vendor/google.golang.org/appengine/internal/modules/modules_service.proto b/vendor/google.golang.org/appengine/internal/modules/modules_service.proto
new file mode 100644
index 0000000000..d29f0065a2
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/modules/modules_service.proto
@@ -0,0 +1,80 @@
+syntax = "proto2";
+option go_package = "modules";
+
+package appengine;
+
+message ModulesServiceError {
+  enum ErrorCode {
+    OK  = 0;
+    INVALID_MODULE = 1;
+    INVALID_VERSION = 2;
+    INVALID_INSTANCES = 3;
+    TRANSIENT_ERROR = 4;
+    UNEXPECTED_STATE = 5;
+  }
+}
+
+message GetModulesRequest {
+}
+
+message GetModulesResponse {
+  repeated string module = 1;
+}
+
+message GetVersionsRequest {
+  optional string module = 1;
+}
+
+message GetVersionsResponse {
+  repeated string version = 1;
+}
+
+message GetDefaultVersionRequest {
+  optional string module = 1;
+}
+
+message GetDefaultVersionResponse {
+  required string version = 1;
+}
+
+message GetNumInstancesRequest {
+  optional string module = 1;
+  optional string version = 2;
+}
+
+message GetNumInstancesResponse {
+  required int64 instances = 1;
+}
+
+message SetNumInstancesRequest {
+  optional string module = 1;
+  optional string version = 2;
+  required int64 instances = 3;
+}
+
+message SetNumInstancesResponse {}
+
+message StartModuleRequest {
+  required string module = 1;
+  required string version = 2;
+}
+
+message StartModuleResponse {}
+
+message StopModuleRequest {
+  optional string module = 1;
+  optional string version = 2;
+}
+
+message StopModuleResponse {}
+
+message GetHostnameRequest {
+  optional string module = 1;
+  optional string version = 2;
+  optional string instance = 3;
+}
+
+message GetHostnameResponse {
+  required string hostname = 1;
+}
+