diff --git a/runtime/proto/runtime.micro.go b/runtime/proto/runtime.micro.go
index f494748f..91ff4f8b 100644
--- a/runtime/proto/runtime.micro.go
+++ b/runtime/proto/runtime.micro.go
@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-micro. DO NOT EDIT.
-// source: micro/go-micro/runtime/proto/runtime.proto
+// source: runtime.proto
 
 package go_micro_runtime
 
diff --git a/runtime/proto/runtime.pb.go b/runtime/proto/runtime.pb.go
index 50f810ab..8b6596d7 100644
--- a/runtime/proto/runtime.pb.go
+++ b/runtime/proto/runtime.pb.go
@@ -1,13 +1,11 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
-// source: micro/go-micro/runtime/proto/runtime.proto
+// source: runtime.proto
 
 package go_micro_runtime
 
 import (
-	context "context"
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
 	math "math"
 )
 
@@ -30,7 +28,7 @@ type Service struct {
 	// local path of the source
 	Path string `protobuf:"bytes,3,opt,name=path,proto3" json:"path,omitempty"`
 	// command to execute
-	Exec                 string   `protobuf:"bytes,4,opt,name=exec,proto3" json:"exec,omitempty"`
+	Exec                 []string `protobuf:"bytes,4,rep,name=exec,proto3" json:"exec,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -40,7 +38,7 @@ func (m *Service) Reset()         { *m = Service{} }
 func (m *Service) String() string { return proto.CompactTextString(m) }
 func (*Service) ProtoMessage()    {}
 func (*Service) Descriptor() ([]byte, []int) {
-	return fileDescriptor_efcf18966add108e, []int{0}
+	return fileDescriptor_86e2dd377c869464, []int{0}
 }
 
 func (m *Service) XXX_Unmarshal(b []byte) error {
@@ -82,11 +80,11 @@ func (m *Service) GetPath() string {
 	return ""
 }
 
-func (m *Service) GetExec() string {
+func (m *Service) GetExec() []string {
 	if m != nil {
 		return m.Exec
 	}
-	return ""
+	return nil
 }
 
 type CreateRequest struct {
@@ -100,7 +98,7 @@ func (m *CreateRequest) Reset()         { *m = CreateRequest{} }
 func (m *CreateRequest) String() string { return proto.CompactTextString(m) }
 func (*CreateRequest) ProtoMessage()    {}
 func (*CreateRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_efcf18966add108e, []int{1}
+	return fileDescriptor_86e2dd377c869464, []int{1}
 }
 
 func (m *CreateRequest) XXX_Unmarshal(b []byte) error {
@@ -138,7 +136,7 @@ func (m *CreateResponse) Reset()         { *m = CreateResponse{} }
 func (m *CreateResponse) String() string { return proto.CompactTextString(m) }
 func (*CreateResponse) ProtoMessage()    {}
 func (*CreateResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_efcf18966add108e, []int{2}
+	return fileDescriptor_86e2dd377c869464, []int{2}
 }
 
 func (m *CreateResponse) XXX_Unmarshal(b []byte) error {
@@ -170,7 +168,7 @@ func (m *DeleteRequest) Reset()         { *m = DeleteRequest{} }
 func (m *DeleteRequest) String() string { return proto.CompactTextString(m) }
 func (*DeleteRequest) ProtoMessage()    {}
 func (*DeleteRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_efcf18966add108e, []int{3}
+	return fileDescriptor_86e2dd377c869464, []int{3}
 }
 
 func (m *DeleteRequest) XXX_Unmarshal(b []byte) error {
@@ -208,7 +206,7 @@ func (m *DeleteResponse) Reset()         { *m = DeleteResponse{} }
 func (m *DeleteResponse) String() string { return proto.CompactTextString(m) }
 func (*DeleteResponse) ProtoMessage()    {}
 func (*DeleteResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_efcf18966add108e, []int{4}
+	return fileDescriptor_86e2dd377c869464, []int{4}
 }
 
 func (m *DeleteResponse) XXX_Unmarshal(b []byte) error {
@@ -237,130 +235,23 @@ func init() {
 	proto.RegisterType((*DeleteResponse)(nil), "go.micro.runtime.DeleteResponse")
 }
 
-func init() {
-	proto.RegisterFile("micro/go-micro/runtime/proto/runtime.proto", fileDescriptor_efcf18966add108e)
-}
-
-var fileDescriptor_efcf18966add108e = []byte{
-	// 240 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x91, 0x41, 0x4b, 0xc4, 0x30,
-	0x14, 0x84, 0xb7, 0xba, 0xb4, 0xf8, 0x44, 0x59, 0x72, 0x90, 0xe8, 0xc5, 0x25, 0x27, 0x11, 0xcc,
-	0x42, 0xfb, 0x13, 0xec, 0xd5, 0x4b, 0x3c, 0x7b, 0xa8, 0xe1, 0x51, 0x0b, 0xb6, 0xa9, 0x49, 0x2a,
-	0xfe, 0x23, 0xff, 0xa6, 0x24, 0x2f, 0x15, 0xaa, 0xf5, 0xe4, 0x6d, 0xde, 0x30, 0x7c, 0x33, 0x21,
-	0x70, 0xdb, 0x77, 0xda, 0x9a, 0x43, 0x6b, 0xee, 0x48, 0xd8, 0x69, 0xf0, 0x5d, 0x8f, 0x87, 0xd1,
-	0x1a, 0xff, 0x7d, 0xc9, 0x78, 0xb1, 0x5d, 0x6b, 0x64, 0x4c, 0xc9, 0xe4, 0x8b, 0x27, 0x28, 0x1e,
-	0xd1, 0xbe, 0x77, 0x1a, 0x19, 0x83, 0xed, 0xd0, 0xf4, 0xc8, 0xb3, 0x7d, 0x76, 0x73, 0xa2, 0xa2,
-	0x66, 0x17, 0x90, 0x3b, 0x33, 0x59, 0x8d, 0xfc, 0x28, 0xba, 0xe9, 0x0a, 0xd9, 0xb1, 0xf1, 0x2f,
-	0xfc, 0x98, 0xb2, 0x41, 0x07, 0x0f, 0x3f, 0x50, 0xf3, 0x2d, 0x79, 0x41, 0x8b, 0x1a, 0xce, 0xee,
-	0x2d, 0x36, 0x1e, 0x15, 0xbe, 0x4d, 0xe8, 0x3c, 0xab, 0xa0, 0x70, 0xd4, 0x17, 0x7b, 0x4e, 0xcb,
-	0x4b, 0xf9, 0x73, 0x93, 0x4c, 0x83, 0xd4, 0x9c, 0x14, 0x3b, 0x38, 0x9f, 0x29, 0x6e, 0x34, 0x83,
-	0xc3, 0xc0, 0xad, 0xf1, 0x15, 0xff, 0xcf, 0x9d, 0x29, 0xc4, 0x2d, 0x3f, 0x33, 0x28, 0x14, 0xc5,
-	0xd9, 0x03, 0xe4, 0xd4, 0xca, 0xae, 0x7f, 0xb3, 0x16, 0xaf, 0xba, 0xda, 0xff, 0x1d, 0x48, 0x83,
-	0x37, 0x01, 0x47, 0x65, 0x6b, 0xb8, 0xc5, 0x63, 0xd6, 0x70, 0xcb, 0x9d, 0x62, 0xf3, 0x9c, 0xc7,
-	0x1f, 0xad, 0xbe, 0x02, 0x00, 0x00, 0xff, 0xff, 0x9a, 0xb6, 0x5a, 0xe7, 0xff, 0x01, 0x00, 0x00,
-}
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ context.Context
-var _ grpc.ClientConn
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion4
-
-// RuntimeClient is the client API for Runtime service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-type RuntimeClient interface {
-	Create(ctx context.Context, in *CreateRequest, opts ...grpc.CallOption) (*CreateResponse, error)
-	Delete(ctx context.Context, in *DeleteRequest, opts ...grpc.CallOption) (*DeleteResponse, error)
-}
-
-type runtimeClient struct {
-	cc *grpc.ClientConn
-}
-
-func NewRuntimeClient(cc *grpc.ClientConn) RuntimeClient {
-	return &runtimeClient{cc}
-}
-
-func (c *runtimeClient) Create(ctx context.Context, in *CreateRequest, opts ...grpc.CallOption) (*CreateResponse, error) {
-	out := new(CreateResponse)
-	err := c.cc.Invoke(ctx, "/go.micro.runtime.Runtime/Create", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *runtimeClient) Delete(ctx context.Context, in *DeleteRequest, opts ...grpc.CallOption) (*DeleteResponse, error) {
-	out := new(DeleteResponse)
-	err := c.cc.Invoke(ctx, "/go.micro.runtime.Runtime/Delete", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// RuntimeServer is the server API for Runtime service.
-type RuntimeServer interface {
-	Create(context.Context, *CreateRequest) (*CreateResponse, error)
-	Delete(context.Context, *DeleteRequest) (*DeleteResponse, error)
-}
-
-func RegisterRuntimeServer(s *grpc.Server, srv RuntimeServer) {
-	s.RegisterService(&_Runtime_serviceDesc, srv)
-}
-
-func _Runtime_Create_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(CreateRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(RuntimeServer).Create(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/go.micro.runtime.Runtime/Create",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(RuntimeServer).Create(ctx, req.(*CreateRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _Runtime_Delete_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(DeleteRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(RuntimeServer).Delete(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/go.micro.runtime.Runtime/Delete",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(RuntimeServer).Delete(ctx, req.(*DeleteRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-var _Runtime_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "go.micro.runtime.Runtime",
-	HandlerType: (*RuntimeServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Create",
-			Handler:    _Runtime_Create_Handler,
-		},
-		{
-			MethodName: "Delete",
-			Handler:    _Runtime_Delete_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "micro/go-micro/runtime/proto/runtime.proto",
+func init() { proto.RegisterFile("runtime.proto", fileDescriptor_86e2dd377c869464) }
+
+var fileDescriptor_86e2dd377c869464 = []byte{
+	// 229 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x91, 0xbf, 0x4e, 0x86, 0x30,
+	0x14, 0xc5, 0x41, 0x08, 0xc4, 0x6b, 0x30, 0xa4, 0x83, 0xa9, 0x2e, 0x92, 0x4e, 0x4e, 0x1d, 0xe0,
+	0x11, 0x64, 0x75, 0xa9, 0xb3, 0x03, 0x36, 0x37, 0x4a, 0x22, 0x14, 0xdb, 0x62, 0x7c, 0x23, 0x5f,
+	0xd3, 0xf4, 0x0f, 0x03, 0xca, 0x37, 0x7d, 0xdb, 0xe9, 0xc9, 0xc9, 0xef, 0x9c, 0x9b, 0x42, 0xa5,
+	0xd7, 0xd9, 0x8e, 0x13, 0xf2, 0x45, 0x2b, 0xab, 0x48, 0xfd, 0xa6, 0xf8, 0x34, 0x4a, 0xad, 0x78,
+	0xf4, 0xd9, 0x0b, 0x94, 0xcf, 0xa8, 0xbf, 0x46, 0x89, 0x84, 0x40, 0x3e, 0x0f, 0x13, 0xd2, 0xb4,
+	0x49, 0x1f, 0x2e, 0x85, 0xd7, 0xe4, 0x06, 0x0a, 0xa3, 0x56, 0x2d, 0x91, 0x5e, 0x78, 0x37, 0xbe,
+	0x5c, 0x76, 0x19, 0xec, 0x3b, 0xcd, 0x42, 0xd6, 0x69, 0xe7, 0xe1, 0x37, 0x4a, 0x9a, 0x37, 0x99,
+	0xf3, 0x9c, 0x66, 0x3d, 0x54, 0x8f, 0x1a, 0x07, 0x8b, 0x02, 0x3f, 0x57, 0x34, 0x96, 0x74, 0x50,
+	0x9a, 0xd0, 0xe7, 0x7b, 0xae, 0xda, 0x5b, 0xfe, 0x77, 0x13, 0x8f, 0x83, 0xc4, 0x96, 0x64, 0x35,
+	0x5c, 0x6f, 0x14, 0xb3, 0xa8, 0xd9, 0xa0, 0xe3, 0xf6, 0xf8, 0x81, 0xe7, 0x73, 0x37, 0x4a, 0xe0,
+	0xb6, 0x3f, 0x29, 0x94, 0x22, 0xc4, 0xc9, 0x13, 0x14, 0xa1, 0x95, 0xdc, 0xff, 0x67, 0xed, 0xae,
+	0xba, 0x6b, 0x4e, 0x07, 0xe2, 0xe0, 0xc4, 0xe1, 0x42, 0xd9, 0x11, 0x6e, 0x77, 0xcc, 0x11, 0x6e,
+	0xbf, 0x93, 0x25, 0xaf, 0x85, 0xff, 0xd1, 0xee, 0x37, 0x00, 0x00, 0xff, 0xff, 0x99, 0xc5, 0x97,
+	0x12, 0xe2, 0x01, 0x00, 0x00,
 }
diff --git a/runtime/proto/runtime.proto b/runtime/proto/runtime.proto
index 6a3759e3..bce613e3 100644
--- a/runtime/proto/runtime.proto
+++ b/runtime/proto/runtime.proto
@@ -15,7 +15,7 @@ message Service {
 	// local path of the source
 	string path = 3;
 	// command to execute
-	string exec = 4;
+	repeated string exec = 4;
 }
 
 message CreateRequest {
diff --git a/runtime/runtime.go b/runtime/runtime.go
index 36836392..1cd3ae34 100644
--- a/runtime/runtime.go
+++ b/runtime/runtime.go
@@ -83,7 +83,7 @@ type Service struct {
 	// Path to store source
 	Path string
 	// Exec command
-	Exec string
+	Exec []string
 	// Version of the service
 	Version string
 }
diff --git a/runtime/service.go b/runtime/service.go
index 0d2cc8e9..cf142c16 100644
--- a/runtime/service.go
+++ b/runtime/service.go
@@ -2,7 +2,6 @@ package runtime
 
 import (
 	"io"
-	"strings"
 	"sync"
 
 	"github.com/micro/go-micro/runtime/build"
@@ -37,12 +36,13 @@ func newService(s *Service, c CreateOptions) *service {
 	var args []string
 
 	if len(s.Exec) > 0 {
-		parts := strings.Split(s.Exec, " ")
-		exec = parts[0]
+		if len(s.Exec) > 0 {
+			exec = s.Exec[0]
+		}
 		args = []string{}
 
-		if len(parts) > 1 {
-			args = parts[1:]
+		if len(s.Exec) > 1 {
+			args = s.Exec[1:]
 		}
 	} else {
 		// set command
diff --git a/runtime/service/proto/runtime.pb.go b/runtime/service/proto/runtime.pb.go
index b34df91d..7a9d2bc1 100644
--- a/runtime/service/proto/runtime.pb.go
+++ b/runtime/service/proto/runtime.pb.go
@@ -30,7 +30,7 @@ type Service struct {
 	// local path of the source
 	Path string `protobuf:"bytes,4,opt,name=path,proto3" json:"path,omitempty"`
 	// command to execute
-	Exec                 string   `protobuf:"bytes,5,opt,name=exec,proto3" json:"exec,omitempty"`
+	Exec                 []string `protobuf:"bytes,5,rep,name=exec,proto3" json:"exec,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -89,11 +89,11 @@ func (m *Service) GetPath() string {
 	return ""
 }
 
-func (m *Service) GetExec() string {
+func (m *Service) GetExec() []string {
 	if m != nil {
 		return m.Exec
 	}
-	return ""
+	return nil
 }
 
 type CreateOptions struct {
@@ -597,22 +597,22 @@ var fileDescriptor_86e2dd377c869464 = []byte{
 	0x25, 0x12, 0x02, 0xb3, 0xa6, 0xa8, 0x91, 0x4e, 0x96, 0x93, 0x37, 0x8f, 0x72, 0xfd, 0x26, 0x14,
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-	0x3c, 0x71, 0x04, 0x44, 0xcb, 0x1b, 0x81, 0xec, 0x35, 0xc0, 0x06, 0xe5, 0x99, 0x48, 0xbf, 0x9f,
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-	0xc4, 0x29, 0x83, 0x58, 0x23, 0x1b, 0x42, 0xe4, 0x2d, 0x3c, 0xb4, 0x42, 0x85, 0x36, 0xfa, 0x5e,
-	0x4f, 0x8e, 0xab, 0x2c, 0x83, 0x24, 0xc3, 0x9f, 0x78, 0x9b, 0xb5, 0xca, 0x1f, 0x87, 0x62, 0xfd,
-	0xc9, 0x20, 0xf9, 0xd2, 0xee, 0x8b, 0xdb, 0x71, 0x1d, 0x8a, 0xc5, 0x4d, 0x20, 0xfe, 0x54, 0x09,
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-	0x64, 0x10, 0x6c, 0x50, 0x12, 0x7f, 0xa8, 0x0e, 0xe8, 0xc5, 0xc8, 0xf4, 0x88, 0xb2, 0x85, 0xd0,
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-	0xff, 0x19, 0x21, 0xd3, 0xfb, 0xe0, 0x04, 0x00, 0x00,
+	0xc3, 0x3f, 0x58, 0xd2, 0x07, 0xcb, 0x40, 0xf5, 0xd4, 0x9b, 0xed, 0x20, 0xf9, 0xd0, 0x61, 0x21,
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+	0xf2, 0xb4, 0xac, 0x78, 0xf5, 0x2c, 0x1d, 0x5a, 0x90, 0x5a, 0xfd, 0xb9, 0xdb, 0x24, 0xef, 0x21,
+	0xe2, 0x86, 0x94, 0x16, 0x1d, 0xaf, 0x5e, 0x5d, 0xff, 0xe8, 0x82, 0x7b, 0xee, 0xf6, 0xd9, 0x1c,
+	0x9e, 0x38, 0x02, 0xa2, 0xe5, 0x8d, 0x40, 0xf6, 0x1a, 0x60, 0x83, 0xf2, 0x4c, 0xa4, 0xdf, 0x4f,
+	0xf6, 0x55, 0xef, 0x39, 0xde, 0xbe, 0x2c, 0xde, 0x0d, 0x69, 0x3d, 0xbf, 0xa6, 0x75, 0x3a, 0x75,
+	0xe2, 0x94, 0x41, 0xac, 0x91, 0x0d, 0x21, 0xf2, 0x16, 0x1e, 0x5a, 0xa1, 0x42, 0x1b, 0x7d, 0xaf,
+	0x27, 0xc7, 0x55, 0x96, 0x41, 0x92, 0xe1, 0x4f, 0xbc, 0xcd, 0x5a, 0xe5, 0x8f, 0x43, 0xb1, 0xfe,
+	0x64, 0x90, 0x7c, 0x69, 0xf7, 0xc5, 0xed, 0xb8, 0x0e, 0xc5, 0xe2, 0x26, 0x10, 0x7f, 0xaa, 0x84,
+	0x33, 0x94, 0x7d, 0x84, 0xc7, 0xa6, 0xbc, 0xc9, 0x85, 0xd5, 0xbf, 0x00, 0xa2, 0xdc, 0x4c, 0xc9,
+	0x16, 0x42, 0x93, 0x35, 0x19, 0xfd, 0x7f, 0xd8, 0xeb, 0x8b, 0xe5, 0xf8, 0x82, 0xa5, 0x7b, 0x47,
+	0x32, 0x08, 0x36, 0x28, 0x89, 0x3f, 0x54, 0x07, 0xf4, 0x62, 0x64, 0x7a, 0x44, 0xd9, 0x42, 0x68,
+	0x0c, 0xf6, 0x91, 0xba, 0x08, 0xd0, 0x47, 0x6a, 0x90, 0x8d, 0x86, 0x33, 0xbe, 0xfa, 0xe0, 0x2e,
+	0x72, 0xf3, 0xc1, 0x0d, 0x22, 0xb9, 0x23, 0x1b, 0x98, 0xa9, 0x14, 0x88, 0x47, 0xc6, 0x59, 0x58,
+	0x8b, 0x97, 0x63, 0x63, 0x07, 0xf4, 0x2d, 0xd4, 0xdf, 0xb3, 0xf5, 0xff, 0x00, 0x00, 0x00, 0xff,
+	0xff, 0x2f, 0x63, 0x84, 0x1c, 0xe0, 0x04, 0x00, 0x00,
 }
diff --git a/runtime/service/proto/runtime.proto b/runtime/service/proto/runtime.proto
index 4a6b1046..6abd1638 100644
--- a/runtime/service/proto/runtime.proto
+++ b/runtime/service/proto/runtime.proto
@@ -20,7 +20,7 @@ message Service {
 	// local path of the source
 	string path = 4;
 	// command to execute
-	string exec = 5;
+	repeated string exec = 5;
 }
 
 message CreateOptions {