Merge pull request #1622 from micro/registry-multi-tenancy

Registry mutli-tenancy

registry/service/options.go

@@ -0,0 +1,21 @@
+package service
+
+import (
+	"context"
+
+	"github.com/micro/go-micro/v2/client"
+	"github.com/micro/go-micro/v2/registry"
+)
+
+type clientKey struct{}
+
+// WithClient sets the RPC client
+func WithClient(c client.Client) registry.Option {
+	return func(o *registry.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+
+		o.Context = context.WithValue(o.Context, clientKey{}, c)
+	}
+}

registry/service/service.go

@@ -46,6 +46,17 @@ func (s *serviceRegistry) Init(opts ...registry.Option) error {
 	for _, o := range opts {
 		o(&s.opts)
 	}
+
+	// extract the client from the context, fallback to grpc
+	var cli client.Client
+	if c, ok := s.opts.Context.Value(clientKey{}).(client.Client); ok {
+		cli = c
+	} else {
+		cli = grpc.NewClient()
+	}
+
+	s.client = pb.NewRegistryService(DefaultService, cli)
+
 	return nil
 }
 
@@ -171,21 +182,23 @@ func NewRegistry(opts ...registry.Option) registry.Registry {
 
 	// the registry address
 	addrs := options.Addrs
-
 	if len(addrs) == 0 {
 		addrs = []string{"127.0.0.1:8000"}
 	}
 
-	// use mdns as a fall back in case its used
-	mReg := registry.NewRegistry()
+	if options.Context == nil {
+		options.Context = context.TODO()
+	}
 
-	// create new client with mdns
-	cli := grpc.NewClient(
-		client.Registry(mReg),
-	)
+	// extract the client from the context, fallback to grpc
+	var cli client.Client
+	if c, ok := options.Context.Value(clientKey{}).(client.Client); ok {
+		cli = c
+	} else {
+		cli = grpc.NewClient()
+	}
 
-	// service name
-	// TODO: accept option
+	// service name. TODO: accept option
 	name := DefaultService
 
 	return &serviceRegistry{

service.go

@@ -1,6 +1,7 @@
 package micro
 
 import (
+	"fmt"
 	"os"
 	"os/signal"
 	rtime "runtime"
@@ -15,6 +16,7 @@ import (
 	"github.com/micro/go-micro/v2/debug/trace"
 	"github.com/micro/go-micro/v2/logger"
 	"github.com/micro/go-micro/v2/plugin"
+	registrySrv "github.com/micro/go-micro/v2/registry/service"
 	"github.com/micro/go-micro/v2/runtime"
 	"github.com/micro/go-micro/v2/server"
 	"github.com/micro/go-micro/v2/store"
@@ -115,7 +117,8 @@ func (s *service) Init(opts ...Option) {
 		s.opts.Store.Init(store.Table(name))
 
 		// Set the client for the micro clients
-		// s.opts.Auth.Init(auth.WithClient(s.Client()))
+		s.opts.Auth.Init(auth.WithClient(s.Client()))
+		s.opts.Registry.Init(registrySrv.WithClient(s.Client()))
 		s.opts.Runtime.Init(runtime.WithClient(s.Client()))
 		s.opts.Store.Init(store.WithClient(s.Client()))
 	})
@@ -205,6 +208,11 @@ func (s *service) Run() error {
 		logger.Infof("Starting [service] %s", s.Name())
 	}
 
+	// generate an auth account
+	if err := s.registerAuthAccount(); err != nil {
+		return err
+	}
+
 	if err := s.Start(); err != nil {
 		return err
 	}
@@ -223,3 +231,27 @@ func (s *service) Run() error {
 
 	return s.Stop()
 }
+
+func (s *service) registerAuthAccount() error {
+	// generate a new auth account for the service
+	name := fmt.Sprintf("%v-%v", s.Name(), s.Server().Options().Id)
+	opts := []auth.GenerateOption{
+		auth.WithType("service"),
+		auth.WithRoles("service"),
+		auth.WithNamespace(s.Options().Auth.Options().Namespace),
+	}
+	acc, err := s.Options().Auth.Generate(name, opts...)
+	if err != nil {
+		return err
+	}
+
+	// generate a token
+	token, err := s.Options().Auth.Token(auth.WithCredentials(acc.ID, acc.Secret))
+	if err != nil {
+		return err
+	}
+
+	s.Options().Auth.Init(auth.ClientToken(token), auth.Credentials(acc.ID, acc.Secret))
+	logger.Infof("Auth [%v] Authenticated as %v", s.Options().Auth, name)
+	return nil
+}

util/wrapper/wrapper.go

@@ -2,7 +2,6 @@ package wrapper
 
 import (
 	"context"
-	"fmt"
 	"strings"
 	"time"
 
@@ -182,7 +181,7 @@ func (a *authWrapper) Call(ctx context.Context, req client.Request, rsp interfac
 		return callWithToken(tok.AccessToken)
 	}
 
-	// if we have credentials we can generate a new token for the account
+	// generate a new token if we have credentials
 	if len(aaOpts.ID) > 0 && len(aaOpts.Secret) > 0 {
 		tok, err := aa.Token(auth.WithCredentials(aaOpts.ID, aaOpts.Secret))
 		if err != nil {
@@ -198,31 +197,8 @@ func (a *authWrapper) Call(ctx context.Context, req client.Request, rsp interfac
 		return callWithToken(token)
 	}
 
-	// determine the type of service from the name. we do this so we can allocate
-	// different roles depending on the type of services. e.g. we don't want web
-	// services talking directly to the runtime. TODO: find a better way to determine
-	// the type of service
-	serviceType := "service"
-	if strings.Contains(a.name, "api") {
-		serviceType = "api"
-	} else if strings.Contains(a.name, "web") {
-		serviceType = "web"
-	}
-
-	// generate a new auth account for the service
-	name := fmt.Sprintf("%v-%v", a.name, a.id)
-	acc, err := aa.Generate(name, auth.WithNamespace(aaOpts.Namespace), auth.WithRoles(serviceType))
-	if err != nil {
-		return err
-	}
-	token, err := aa.Token(auth.WithCredentials(acc.ID, acc.Secret))
-	if err != nil {
-		return err
-	}
-	aa.Init(auth.ClientToken(token))
-
-	// use the token to execute the request
-	return callWithToken(token.AccessToken)
+	// call without an auth token
+	return a.Client.Call(ctx, req, rsp, opts...)
 }
 
 // AuthClient wraps requests with the auth header
@@ -276,7 +252,9 @@ func AuthHandler(fn func() auth.Auth) server.HandlerWrapper {
 			}
 
 			// There is an account, set it in the context
-			ctx = auth.ContextWithAccount(ctx, account)
+			if len(account.ID) > 0 {
+				ctx = auth.ContextWithAccount(ctx, account)
+			}
 
 			// The user is authorised, allow the call
 			return h(ctx, req, rsp)