replace db with store in function (#318)

* replace db with store in function

* .

* set id properly

* .

function/handler/function.go

@@ -14,21 +14,18 @@ import (
 	"github.com/micro/micro/v3/service/config"
 	"github.com/micro/micro/v3/service/errors"
 	log "github.com/micro/micro/v3/service/logger"
-	"gopkg.in/yaml.v2"
-
 	"github.com/micro/micro/v3/service/runtime/source/git"
-
+	"github.com/micro/micro/v3/service/store"
-	_struct "github.com/golang/protobuf/ptypes/struct"
-	db "github.com/micro/services/db/proto"
 	function "github.com/micro/services/function/proto"
 	"github.com/micro/services/pkg/tenant"
+	"gopkg.in/yaml.v2"
 )
 
 type Function struct {
 	project string
 	// eg. https://us-central1-m3o-apis.cloudfunctions.net/
 	address string
-	db      db.DbService
+	limit   int
 }
 
 type Func struct {
@@ -37,7 +34,7 @@ type Func struct {
 	Project string `json:"project"`
 }
 
-func NewFunction(db db.DbService) *Function {
+func NewFunction() *Function {
 	v, err := config.Get("function.service_account_json")
 	if err != nil {
 		log.Fatalf("function.service_account_json: %v", err)
@@ -64,7 +61,14 @@ func NewFunction(db db.DbService) *Function {
 	if len(project) == 0 {
 		log.Fatalf("empty project")
 	}
-
+	v, err = config.Get("function.limit")
+	if err != nil {
+		log.Fatalf("function.limit: %v", err)
+	}
+	limit := v.Int(0)
+	if limit > 0 {
+		log.Infof("Function limit is %d", limit)
+	}
 	v, err = config.Get("function.service_account")
 	if err != nil {
 		log.Fatalf("function.service_account: %v", err)
@@ -97,7 +101,7 @@ func NewFunction(db db.DbService) *Function {
 		log.Fatalf(string(outp))
 	}
 	log.Info(string(outp))
-	return &Function{project: project, address: address, db: db}
+	return &Function{project: project, address: address, limit: limit}
 }
 
 func (e *Function) Deploy(ctx context.Context, req *function.DeployRequest, rsp *function.DeployResponse) error {
@@ -110,6 +114,9 @@ func (e *Function) Deploy(ctx context.Context, req *function.DeployRequest, rsp
 	if len(req.Repo) == 0 {
 		return errors.BadRequest("function.deploy", "Missing repo")
 	}
+	if req.Runtime == "" {
+		return fmt.Errorf("missing runtime field, please specify nodejs14, go116 etc")
+	}
 
 	gitter := git.NewGitter(map[string]string{})
 
@@ -141,15 +148,28 @@ func (e *Function) Deploy(ctx context.Context, req *function.DeployRequest, rsp
 		project = "default"
 	}
 
-	readRsp, err := e.db.Read(ctx, &db.ReadRequest{
+	key := fmt.Sprintf("%s/%s/%s", tenantId, project, req.Name)
-		Table: "functions",
+
-		Query: fmt.Sprintf("tenantId == '%v' and project == '%v' and name == '%v'", tenantId, project, req.Name),
+	records, err := store.Read(key)
-	})
+	if err != nil && err != store.ErrNotFound {
-	if err != nil {
 		return err
 	}
-	if req.Runtime == "" {
+
-		return fmt.Errorf("missing runtime field, please specify nodejs14, go116 etc")
+	if len(records) > 0 {
+		return errors.BadRequest("function.deploy", "already exists")
+	}
+
+	// check for function limit
+	if e.limit > 0 {
+		// read all the records for the user
+		records, err := store.Read(tenantId+"/", store.ReadPrefix())
+		if err != nil {
+			return err
+		}
+
+		if v := len(records); v >= e.limit {
+			return errors.BadRequest("function.deploy", "deployment limit reached")
+		}
 	}
 
 	// process the env vars to the required format
@@ -178,9 +198,8 @@ func (e *Function) Deploy(ctx context.Context, req *function.DeployRequest, rsp
 		}
 	}()
 
-	s := &_struct.Struct{}
 	id := fmt.Sprintf("%v-%v-%v", tenantId, project, req.Name)
-	jso, _ := json.Marshal(map[string]interface{}{
+	rec := store.NewRecord(key, map[string]interface{}{
 		"id":         id,
 		"project":    project,
 		"name":       req.Name,
@@ -189,30 +208,107 @@ func (e *Function) Deploy(ctx context.Context, req *function.DeployRequest, rsp
 		"subfolder":  req.Subfolder,
 		"entrypoint": req.Entrypoint,
 		"runtime":    req.Runtime,
+		"env_vars":   envVars,
 	})
-	err = s.UnmarshalJSON(jso)
+
+	// write the record
+	return store.Write(rec)
+}
+
+func (e *Function) Update(ctx context.Context, req *function.UpdateRequest, rsp *function.UpdateResponse) error {
+	log.Info("Received Function.Update request")
+
+	if len(req.Name) == 0 {
+		return errors.BadRequest("function.update", "Missing name")
+	}
+
+	if len(req.Repo) == 0 {
+		return errors.BadRequest("function.update", "Missing repo")
+	}
+	if req.Runtime == "" {
+		return fmt.Errorf("missing runtime field, please specify nodejs14, go116 etc")
+	}
+
+	tenantId, ok := tenant.FromContext(ctx)
+	if !ok {
+		tenantId = "micro"
+	}
+
+	multitenantPrefix := strings.Replace(tenantId, "/", "-", -1)
+	if req.Entrypoint == "" {
+		req.Entrypoint = req.Name
+	}
+
+	project := req.Project
+	if project == "" {
+		project = "default"
+	}
+
+	key := fmt.Sprintf("%s/%s/%s", tenantId, project, req.Name)
+
+	records, err := store.Read(key)
 	if err != nil {
 		return err
 	}
-	if len(readRsp.Records) > 0 {
+
-		_, err = e.db.Update(ctx, &db.UpdateRequest{
+	if len(records) == 0 {
-			Table:  "functions",
+		return errors.BadRequest("function.deploy", "function does not exist")
-			Record: s,
+	}
-			Id:     id,
+
-		})
+	gitter := git.NewGitter(map[string]string{})
-		if err != nil {
+
-			log.Error(err)
+	for _, branch := range []string{"master", "main"} {
+		err = gitter.Checkout(req.Repo, branch)
+		if err == nil {
+			break
 		}
-		return err
 	}
-	_, err = e.db.Create(ctx, &db.CreateRequest{
+
-		Table:  "functions",
-		Record: s,
-	})
 	if err != nil {
-		log.Error(err)
+		return errors.InternalServerError("function.update", err.Error())
 	}
-	return err
+
+	// process the env vars to the required format
+	var envVars []string
+
+	for k, v := range req.EnvVars {
+		envVars = append(envVars, k+"="+v)
+	}
+
+	go func() {
+		// https://jsoverson.medium.com/how-to-deploy-node-js-functions-to-google-cloud-8bba05e9c10a
+		cmd := exec.Command("gcloud", "functions", "deploy",
+			multitenantPrefix+"-"+req.Name, "--region", "europe-west1",
+			"--allow-unauthenticated", "--entry-point", req.Entrypoint,
+			"--trigger-http", "--project", e.project, "--runtime", req.Runtime)
+
+		// if env vars exist then set them
+		if len(envVars) > 0 {
+			cmd.Args = append(cmd.Args, "--set-env-vars", strings.Join(envVars, ","))
+		}
+
+		cmd.Dir = filepath.Join(gitter.RepoDir(), req.Subfolder)
+		outp, err := cmd.CombinedOutput()
+		if err != nil {
+			log.Error(fmt.Errorf(string(outp)))
+		}
+	}()
+
+	id := fmt.Sprintf("%v-%v-%v", tenantId, project, req.Name)
+	rec := store.NewRecord(key, map[string]interface{}{
+		"id":         id,
+		"project":    project,
+		"name":       req.Name,
+		"tenantId":   tenantId,
+		"repo":       req.Repo,
+		"subfolder":  req.Subfolder,
+		"entrypoint": req.Entrypoint,
+		"runtime":    req.Runtime,
+		"env_vars":   envVars,
+	})
+
+	// write the record
+	return store.Write(rec)
 }
 
 func (e *Function) Call(ctx context.Context, req *function.CallRequest, rsp *function.CallResponse) error {
@@ -289,12 +385,9 @@ func (e *Function) Delete(ctx context.Context, req *function.DeleteRequest, rsp
 		return err
 	}
 
-	id := fmt.Sprintf("%v-%v-%v", tenantId, project, req.Name)
+	key := fmt.Sprintf("%v/%v/%v", tenantId, project, req.Name)
-	_, err = e.db.Delete(ctx, &db.DeleteRequest{
+
-		Table: "functions",
+	return store.Delete(key)
-		Id:    id,
-	})
-	return err
 }
 
 func (e *Function) List(ctx context.Context, req *function.ListRequest, rsp *function.ListResponse) error {
@@ -304,21 +397,18 @@ func (e *Function) List(ctx context.Context, req *function.ListRequest, rsp *fun
 	if !ok {
 		tenantId = "micro"
 	}
-	project := req.Project
 
-	q := fmt.Sprintf(`tenantId == "%v"`, tenantId)
+	key := tenantId + "/"
-	if project != "" {
+
-		q += fmt.Sprintf(` and project == "%v"`, project)
+	project := req.Project
+	if len(project) > 0 {
+		key = key + "/" + project + "/"
 	}
-	log.Infof("Making query %v", q)
+
-	readRsp, err := e.db.Read(ctx, &db.ReadRequest{
+	records, err := store.Read(key, store.ReadPrefix())
-		Table: "functions",
-		Query: q,
-	})
 	if err != nil {
 		return err
 	}
-	log.Info(readRsp.Records)
 
 	multitenantPrefix := strings.Replace(tenantId, "/", "-", -1)
 	cmd := exec.Command("gcloud", "functions", "list", "--project", e.project, "--filter", "name~"+multitenantPrefix+"*")
@@ -326,8 +416,10 @@ func (e *Function) List(ctx context.Context, req *function.ListRequest, rsp *fun
 	if err != nil {
 		log.Error(fmt.Errorf(string(outp)))
 	}
+
 	lines := strings.Split(string(outp), "\n")
 	statuses := map[string]string{}
+
 	for _, line := range lines {
 		fields := strings.Fields(line)
 		if len(fields) < 2 {
@@ -337,17 +429,16 @@ func (e *Function) List(ctx context.Context, req *function.ListRequest, rsp *fun
 	}
 
 	rsp.Functions = []*function.Func{}
-	for _, record := range readRsp.Records {
+
-		m := record.AsMap()
+	for _, record := range records {
-		bs, _ := json.Marshal(m)
+		f := new(function.Func)
-		f := &function.Func{}
+		if err := record.Decode(f); err != nil {
-		err = json.Unmarshal(bs, f)
-		if err != nil {
 			return err
 		}
 		f.Status = statuses[multitenantPrefix+"-"+f.Name]
 		rsp.Functions = append(rsp.Functions, f)
 	}
+
 	return nil
 }
 
@@ -367,12 +458,9 @@ func (e *Function) Describe(ctx context.Context, req *function.DescribeRequest,
 	}
 
 	multitenantPrefix := strings.Replace(tenantId, "/", "-", -1)
-	id := fmt.Sprintf("%v-%v-%v", tenantId, project, req.Name)
+	key := fmt.Sprintf("%v/%v/%v", tenantId, project, req.Name)
 
-	readRsp, err := e.db.Read(ctx, &db.ReadRequest{
+	records, err := store.Read(key)
-		Table: "functions",
-		Id:    id,
-	})
 	if err != nil {
 		return err
 	}
@@ -391,12 +479,9 @@ func (e *Function) Describe(ctx context.Context, req *function.DescribeRequest,
 		return err
 	}
 
-	if len(readRsp.Records) > 0 {
+	if len(records) > 0 {
-		m := readRsp.Records[0].AsMap()
-		bs, _ := json.Marshal(m)
 		f := &function.Func{}
-		err = json.Unmarshal(bs, f)
+		if err := records[0].Decode(f); err != nil {
-		if err != nil {
 			return err
 		}
 		rsp.Function = f

function/main.go

@@ -1,12 +1,10 @@
 package main
 
 import (
-	db "github.com/micro/services/db/proto"
-	"github.com/micro/services/function/handler"
-	pb "github.com/micro/services/function/proto"
-
 	"github.com/micro/micro/v3/service"
 	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/services/function/handler"
+	pb "github.com/micro/services/function/proto"
 )
 
 func main() {
@@ -17,7 +15,7 @@ func main() {
 	)
 
 	// Register handler
-	pb.RegisterFunctionHandler(srv.Server(), handler.NewFunction(db.NewDbService("db", srv.Client())))
+	pb.RegisterFunctionHandler(srv.Server(), handler.NewFunction())
 
 	// Run service
 	if err := srv.Run(); err != nil {

function/proto/function.pb.go

@@ -355,6 +355,8 @@ type Func struct {
 	Runtime string `protobuf:"bytes,6,opt,name=runtime,proto3" json:"runtime,omitempty"`
 	// eg. ACTIVE, DEPLOY_IN_PROGRESS, OFFLINE etc
 	Status string `protobuf:"bytes,7,opt,name=status,proto3" json:"status,omitempty"`
+	// associated env vars
+	Env_Vars map[string]string `protobuf:"bytes,8,rep,name=env_Vars,json=envVars,proto3" json:"env_Vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 }
 
 func (x *Func) Reset() {
@@ -438,6 +440,13 @@ func (x *Func) GetStatus() string {
 	return ""
 }
 
+func (x *Func) GetEnv_Vars() map[string]string {
+	if x != nil {
+		return x.Env_Vars
+	}
+	return nil
+}
+
 type ListResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -706,6 +715,155 @@ func (x *DescribeResponse) GetTimeout() string {
 	return ""
 }
 
+type UpdateRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// function name
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// github url to repo
+	Repo string `protobuf:"bytes,2,opt,name=repo,proto3" json:"repo,omitempty"`
+	// optional subfolder path
+	Subfolder string `protobuf:"bytes,3,opt,name=subfolder,proto3" json:"subfolder,omitempty"`
+	// entry point, ie. handler name in the source code
+	// if not provided, defaults to the name parameter
+	Entrypoint string `protobuf:"bytes,4,opt,name=entrypoint,proto3" json:"entrypoint,omitempty"`
+	// project is used for namespacing your functions
+	// optional. defaults to "default".
+	Project string `protobuf:"bytes,5,opt,name=project,proto3" json:"project,omitempty"`
+	// runtime/language of the function
+	// eg: php74,
+	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16
+	// dotnet3
+	// java11
+	// ruby26, ruby27
+	// go111, go113, go116
+	// python37, python38, python39
+	Runtime string `protobuf:"bytes,6,opt,name=runtime,proto3" json:"runtime,omitempty"`
+	// environment variables to pass in at runtime
+	EnvVars map[string]string `protobuf:"bytes,7,rep,name=env_vars,json=envVars,proto3" json:"env_vars,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (x *UpdateRequest) Reset() {
+	*x = UpdateRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_function_proto_msgTypes[11]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *UpdateRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdateRequest) ProtoMessage() {}
+
+func (x *UpdateRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_function_proto_msgTypes[11]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdateRequest.ProtoReflect.Descriptor instead.
+func (*UpdateRequest) Descriptor() ([]byte, []int) {
+	return file_proto_function_proto_rawDescGZIP(), []int{11}
+}
+
+func (x *UpdateRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetRepo() string {
+	if x != nil {
+		return x.Repo
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetSubfolder() string {
+	if x != nil {
+		return x.Subfolder
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetEntrypoint() string {
+	if x != nil {
+		return x.Entrypoint
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetProject() string {
+	if x != nil {
+		return x.Project
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetRuntime() string {
+	if x != nil {
+		return x.Runtime
+	}
+	return ""
+}
+
+func (x *UpdateRequest) GetEnvVars() map[string]string {
+	if x != nil {
+		return x.EnvVars
+	}
+	return nil
+}
+
+type UpdateResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *UpdateResponse) Reset() {
+	*x = UpdateResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_function_proto_msgTypes[12]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *UpdateResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*UpdateResponse) ProtoMessage() {}
+
+func (x *UpdateResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_function_proto_msgTypes[12]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use UpdateResponse.ProtoReflect.Descriptor instead.
+func (*UpdateResponse) Descriptor() ([]byte, []int) {
+	return file_proto_function_proto_rawDescGZIP(), []int{12}
+}
+
 var File_proto_function_proto protoreflect.FileDescriptor
 
 var file_proto_function_proto_rawDesc = []byte{
@@ -744,7 +902,7 @@ var file_proto_function_proto_rawDesc = []byte{
 	0x38, 0x01, 0x22, 0x10, 0x0a, 0x0e, 0x44, 0x65, 0x70, 0x6c, 0x6f, 0x79, 0x52, 0x65, 0x73, 0x70,
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@@ -756,49 +914,80 @@ var file_proto_function_proto_rawDesc = []byte{
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 }
 
 var (
@@ -813,7 +1002,7 @@ func file_proto_function_proto_rawDescGZIP() []byte {
 	return file_proto_function_proto_rawDescData
 }
 
-var file_proto_function_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_proto_function_proto_msgTypes = make([]protoimpl.MessageInfo, 16)
 var file_proto_function_proto_goTypes = []interface{}{
 	(*CallRequest)(nil),      // 0: function.CallRequest
 	(*CallResponse)(nil),     // 1: function.CallResponse
@@ -826,30 +1015,38 @@ var file_proto_function_proto_goTypes = []interface{}{
 	(*DeleteResponse)(nil),   // 8: function.DeleteResponse
 	(*DescribeRequest)(nil),  // 9: function.DescribeRequest
 	(*DescribeResponse)(nil), // 10: function.DescribeResponse
-	nil,                      // 11: function.DeployRequest.EnvVarsEntry
+	(*UpdateRequest)(nil),    // 11: function.UpdateRequest
-	(*structpb.Struct)(nil),  // 12: google.protobuf.Struct
+	(*UpdateResponse)(nil),   // 12: function.UpdateResponse
+	nil,                      // 13: function.DeployRequest.EnvVarsEntry
+	nil,                      // 14: function.Func.EnvVarsEntry
+	nil,                      // 15: function.UpdateRequest.EnvVarsEntry
+	(*structpb.Struct)(nil),  // 16: google.protobuf.Struct
 }
 var file_proto_function_proto_depIdxs = []int32{
-	12, // 0: function.CallRequest.request:type_name -> google.protobuf.Struct
+	16, // 0: function.CallRequest.request:type_name -> google.protobuf.Struct
-	12, // 1: function.CallResponse.response:type_name -> google.protobuf.Struct
+	16, // 1: function.CallResponse.response:type_name -> google.protobuf.Struct
-	11, // 2: function.DeployRequest.env_vars:type_name -> function.DeployRequest.EnvVarsEntry
+	13, // 2: function.DeployRequest.env_vars:type_name -> function.DeployRequest.EnvVarsEntry
-	5,  // 3: function.ListResponse.functions:type_name -> function.Func
+	14, // 3: function.Func.env_Vars:type_name -> function.Func.EnvVarsEntry
-	5,  // 4: function.DescribeResponse.function:type_name -> function.Func
+	5,  // 4: function.ListResponse.functions:type_name -> function.Func
-	0,  // 5: function.Function.Call:input_type -> function.CallRequest
+	5,  // 5: function.DescribeResponse.function:type_name -> function.Func
-	2,  // 6: function.Function.Deploy:input_type -> function.DeployRequest
+	15, // 6: function.UpdateRequest.env_vars:type_name -> function.UpdateRequest.EnvVarsEntry
-	4,  // 7: function.Function.List:input_type -> function.ListRequest
+	0,  // 7: function.Function.Call:input_type -> function.CallRequest
-	7,  // 8: function.Function.Delete:input_type -> function.DeleteRequest
+	2,  // 8: function.Function.Deploy:input_type -> function.DeployRequest
-	9,  // 9: function.Function.Describe:input_type -> function.DescribeRequest
+	4,  // 9: function.Function.List:input_type -> function.ListRequest
-	1,  // 10: function.Function.Call:output_type -> function.CallResponse
+	7,  // 10: function.Function.Delete:input_type -> function.DeleteRequest
-	3,  // 11: function.Function.Deploy:output_type -> function.DeployResponse
+	9,  // 11: function.Function.Describe:input_type -> function.DescribeRequest
-	6,  // 12: function.Function.List:output_type -> function.ListResponse
+	11, // 12: function.Function.Update:input_type -> function.UpdateRequest
-	8,  // 13: function.Function.Delete:output_type -> function.DeleteResponse
+	1,  // 13: function.Function.Call:output_type -> function.CallResponse
-	10, // 14: function.Function.Describe:output_type -> function.DescribeResponse
+	3,  // 14: function.Function.Deploy:output_type -> function.DeployResponse
-	10, // [10:15] is the sub-list for method output_type
+	6,  // 15: function.Function.List:output_type -> function.ListResponse
-	5,  // [5:10] is the sub-list for method input_type
+	8,  // 16: function.Function.Delete:output_type -> function.DeleteResponse
-	5,  // [5:5] is the sub-list for extension type_name
+	10, // 17: function.Function.Describe:output_type -> function.DescribeResponse
-	5,  // [5:5] is the sub-list for extension extendee
+	12, // 18: function.Function.Update:output_type -> function.UpdateResponse
-	0,  // [0:5] is the sub-list for field type_name
+	13, // [13:19] is the sub-list for method output_type
+	7,  // [7:13] is the sub-list for method input_type
+	7,  // [7:7] is the sub-list for extension type_name
+	7,  // [7:7] is the sub-list for extension extendee
+	0,  // [0:7] is the sub-list for field type_name
 }
 
 func init() { file_proto_function_proto_init() }
@@ -990,6 +1187,30 @@ func file_proto_function_proto_init() {
 				return nil
 			}
 		}
+		file_proto_function_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*UpdateRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_function_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*UpdateResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -997,7 +1218,7 @@ func file_proto_function_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_function_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   12,
+			NumMessages:   16,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

function/proto/function.pb.micro.go

@@ -48,6 +48,7 @@ type FunctionService interface {
 	List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
 	Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
 	Describe(ctx context.Context, in *DescribeRequest, opts ...client.CallOption) (*DescribeResponse, error)
+	Update(ctx context.Context, in *UpdateRequest, opts ...client.CallOption) (*UpdateResponse, error)
 }
 
 type functionService struct {
@@ -112,6 +113,16 @@ func (c *functionService) Describe(ctx context.Context, in *DescribeRequest, opt
 	return out, nil
 }
 
+func (c *functionService) Update(ctx context.Context, in *UpdateRequest, opts ...client.CallOption) (*UpdateResponse, error) {
+	req := c.c.NewRequest(c.name, "Function.Update", in)
+	out := new(UpdateResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for Function service
 
 type FunctionHandler interface {
@@ -120,6 +131,7 @@ type FunctionHandler interface {
 	List(context.Context, *ListRequest, *ListResponse) error
 	Delete(context.Context, *DeleteRequest, *DeleteResponse) error
 	Describe(context.Context, *DescribeRequest, *DescribeResponse) error
+	Update(context.Context, *UpdateRequest, *UpdateResponse) error
 }
 
 func RegisterFunctionHandler(s server.Server, hdlr FunctionHandler, opts ...server.HandlerOption) error {
@@ -129,6 +141,7 @@ func RegisterFunctionHandler(s server.Server, hdlr FunctionHandler, opts ...serv
 		List(ctx context.Context, in *ListRequest, out *ListResponse) error
 		Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
 		Describe(ctx context.Context, in *DescribeRequest, out *DescribeResponse) error
+		Update(ctx context.Context, in *UpdateRequest, out *UpdateResponse) error
 	}
 	type Function struct {
 		function
@@ -160,3 +173,7 @@ func (h *functionHandler) Delete(ctx context.Context, in *DeleteRequest, out *De
 func (h *functionHandler) Describe(ctx context.Context, in *DescribeRequest, out *DescribeResponse) error {
 	return h.FunctionHandler.Describe(ctx, in, out)
 }
+
+func (h *functionHandler) Update(ctx context.Context, in *UpdateRequest, out *UpdateResponse) error {
+	return h.FunctionHandler.Update(ctx, in, out)
+}

function/proto/function.proto

@@ -11,6 +11,7 @@ service Function {
 	rpc List(ListRequest) returns (ListResponse) {}
 	rpc Delete(DeleteRequest) returns (DeleteResponse) {}
 	rpc Describe(DescribeRequest) returns (DescribeResponse) {}
+	rpc Update(UpdateRequest) returns (UpdateResponse) {}
 }
 
 // Call a function by name
@@ -87,6 +88,8 @@ message Func {
 	string runtime = 6;
 	// eg. ACTIVE, DEPLOY_IN_PROGRESS, OFFLINE etc
 	string status = 7;
+	// associated env vars
+	map<string,string> env_Vars = 8;
 }
 
 message ListResponse {
@@ -122,3 +125,32 @@ message DescribeResponse {
 	// The timeout for requests to the function
 	string timeout = 3;
 }
+
+message UpdateRequest {
+	// function name
+	string name = 1;
+	// github url to repo
+	string repo = 2;
+	// optional subfolder path
+	string subfolder = 3;
+	// entry point, ie. handler name in the source code 
+	// if not provided, defaults to the name parameter
+	string entrypoint = 4;
+	// project is used for namespacing your functions
+	// optional. defaults to "default".
+	string project = 5;
+	// runtime/language of the function
+	// eg: php74,
+	// nodejs6, nodejs8, nodejs10, nodejs12, nodejs14, nodejs16
+	// dotnet3
+	// java11
+	// ruby26, ruby27
+	// go111, go113, go116
+	// python37, python38, python39
+	string runtime = 6;
+	// environment variables to pass in at runtime
+	map<string,string> env_vars = 7;
+}
+
+message UpdateResponse {
+}