unify eventstream creation

Signed-off-by: jkoberg <jkoberg@owncloud.com>

services/graph/pkg/server/http/server.go

@@ -1,20 +1,15 @@
 package http
 
 import (
-	"crypto/tls"
-	"crypto/x509"
 	"fmt"
 	stdhttp "net/http"
-	"os"
 
 	gateway "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
 	"github.com/cs3org/reva/v2/pkg/events/stream"
 	"github.com/cs3org/reva/v2/pkg/rgrpc/todo/pool"
 	chimiddleware "github.com/go-chi/chi/v5/middleware"
-	"github.com/go-micro/plugins/v4/events/natsjs"
 	"github.com/owncloud/ocis/v2/ocis-pkg/account"
 	"github.com/owncloud/ocis/v2/ocis-pkg/cors"
-	ociscrypto "github.com/owncloud/ocis/v2/ocis-pkg/crypto"
 	"github.com/owncloud/ocis/v2/ocis-pkg/keycloak"
 	"github.com/owncloud/ocis/v2/ocis-pkg/middleware"
 	"github.com/owncloud/ocis/v2/ocis-pkg/registry"
@@ -57,34 +52,7 @@ func Server(opts ...Option) (http.Service, error) {
 
 	if options.Config.Events.Endpoint != "" {
 		var err error
-
-		var tlsConf *tls.Config
-		if options.Config.Events.EnableTLS {
-			var rootCAPool *x509.CertPool
-			if options.Config.Events.TLSRootCACertificate != "" {
-				rootCrtFile, err := os.Open(options.Config.Events.TLSRootCACertificate)
-				if err != nil {
-					return http.Service{}, err
-				}
-
-				rootCAPool, err = ociscrypto.NewCertPoolFromPEM(rootCrtFile)
-				if err != nil {
-					return http.Service{}, err
-				}
-				options.Config.Events.TLSInsecure = false
-			}
-
-			tlsConf = &tls.Config{
-				MinVersion:         tls.VersionTLS12,
-				InsecureSkipVerify: options.Config.Events.TLSInsecure, //nolint:gosec
-				RootCAs:            rootCAPool,
-			}
-		}
-		publisher, err = stream.Nats(
-			natsjs.TLSConfig(tlsConf),
-			natsjs.Address(options.Config.Events.Endpoint),
-			natsjs.ClusterID(options.Config.Events.Cluster),
-		)
+		publisher, err = stream.NatsFromConfig(options.Config.Service.Name, stream.NatsConfig(options.Config.Events))
 		if err != nil {
 			options.Logger.Error().
 				Err(err).