Removed clientID from NATS-Streaming Config (#6391)

clientID must be a unique `UUID` for each connections. Now, the
server generates it, rather considering the config.

Removing it as it is non-beneficial right now.

Fixes #6364

cmd/admin-handlers_test.go

@@ -38,7 +38,7 @@ import (
 
 var (
 	configJSON = []byte(`{
-  "version": "32",
+  "version": "33",
   "credential": {
     "accessKey": "minio",
     "secretKey": "minio123"
@@ -152,7 +152,6 @@ var (
         "streaming": {
           "enable": false,
           "clusterID": "",
-          "clientID": "",
           "async": false,
           "maxPubAcksInflight": 0
         }

cmd/config-current.go

@@ -43,9 +43,9 @@ import (
 // 6. Make changes in config-current_test.go for any test change
 
 // Config version
-const serverConfigVersion = "32"
+const serverConfigVersion = "33"
 
-type serverConfig = serverConfigV32
+type serverConfig = serverConfigV33
 
 var (
 	// globalServerConfig server config.

cmd/config-current_test.go

@@ -188,7 +188,7 @@ func TestValidateConfig(t *testing.T) {
 		{`{"version": "` + v + `", "credential": { "accessKey": "minio", "secretKey": "minio123" }, "region": "us-east-1", "browser": "on", "notify": { "amqp": { "1": { "enable": true, "url": "", "exchange": "", "routingKey": "", "exchangeType": "", "mandatory": false, "immediate": false, "durable": false, "internal": false, "noWait": false, "autoDeleted": false }}}}`, false},
 
 		// Test 12 - Test NATS
-		{`{"version": "` + v + `", "credential": { "accessKey": "minio", "secretKey": "minio123" }, "region": "us-east-1", "browser": "on", "notify": { "nats": { "1": { "enable": true, "address": "", "subject": "", "username": "", "password": "", "token": "", "secure": false, "pingInterval": 0, "streaming": { "enable": false, "clusterID": "", "clientID": "", "async": false, "maxPubAcksInflight": 0 } } }}}`, false},
+		{`{"version": "` + v + `", "credential": { "accessKey": "minio", "secretKey": "minio123" }, "region": "us-east-1", "browser": "on", "notify": { "nats": { "1": { "enable": true, "address": "", "subject": "", "username": "", "password": "", "token": "", "secure": false, "pingInterval": 0, "streaming": { "enable": false, "clusterID": "", "async": false, "maxPubAcksInflight": 0 } } }}}`, false},
 
 		// Test 13 - Test ElasticSearch
 		{`{"version": "` + v + `", "credential": { "accessKey": "minio", "secretKey": "minio123" }, "region": "us-east-1", "browser": "on", "notify": { "elasticsearch": { "1": { "enable": true, "url": "", "index": "" } }}}`, false},

cmd/config-migrate.go

@@ -2455,7 +2455,7 @@ func migrateConfigToMinioSys(objAPI ObjectLayer) (err error) {
 	return saveServerConfig(context.Background(), objAPI, config)
 }
 
-// Migrates '.minio.sys/config.json' to v32.
+// Migrates '.minio.sys/config.json' to v33.
 func migrateMinioSysConfig(objAPI ObjectLayer) error {
 	configFile := path.Join(minioConfigPrefix, minioConfigFile)
 
@@ -2483,7 +2483,10 @@ func migrateMinioSysConfig(objAPI ObjectLayer) error {
 	if err := migrateV30ToV31MinioSys(objAPI); err != nil {
 		return err
 	}
-	return migrateV31ToV32MinioSys(objAPI)
+	if err := migrateV31ToV32MinioSys(objAPI); err != nil {
+		return err
+	}
+	return migrateV32ToV33MinioSys(objAPI)
 }
 
 func checkConfigVersion(objAPI ObjectLayer, configFile string, version string) (bool, []byte, error) {
@@ -2679,3 +2682,36 @@ func migrateV31ToV32MinioSys(objAPI ObjectLayer) error {
 	logger.Info(configMigrateMSGTemplate, configFile, "31", "32")
 	return nil
 }
+
+func migrateV32ToV33MinioSys(objAPI ObjectLayer) error {
+	configFile := path.Join(minioConfigPrefix, minioConfigFile)
+
+	ok, data, err := checkConfigVersion(objAPI, configFile, "32")
+	if err == errConfigNotFound {
+		return nil
+	} else if err != nil {
+		return fmt.Errorf("Unable to load config file. %v", err)
+	}
+	if !ok {
+		return nil
+	}
+
+	cfg := &serverConfigV33{}
+	if err = json.Unmarshal(data, cfg); err != nil {
+		return err
+	}
+
+	cfg.Version = "33"
+
+	data, err = json.Marshal(cfg)
+	if err != nil {
+		return err
+	}
+
+	if err = saveConfig(context.Background(), objAPI, configFile, data); err != nil {
+		return fmt.Errorf("Failed to migrate config from  32  to  33 . %v", err)
+	}
+
+	logger.Info(configMigrateMSGTemplate, configFile, "32", "33")
+	return nil
+}

cmd/config-migrate_test.go

@@ -159,8 +159,8 @@ func TestServerConfigMigrateInexistentConfig(t *testing.T) {
 	}
 }
 
-// Test if a config migration from v2 to v30 is successfully done
-func TestServerConfigMigrateV2toV30(t *testing.T) {
+// Test if a config migration from v2 to v33 is successfully done
+func TestServerConfigMigrateV2toV33(t *testing.T) {
 	rootPath, err := ioutil.TempDir(globalTestTmpDir, "minio-")
 	if err != nil {
 		t.Fatal(err)

cmd/config-versions.go

@@ -892,3 +892,47 @@ type serverConfigV32 struct {
 		// Add new external policy enforcements here.
 	} `json:"policy"`
 }
+
+// serverConfigV33 is just like version '32', removes clientID from NATS.
+type serverConfigV33 struct {
+	quick.Config `json:"-"` // ignore interfaces
+
+	Version string `json:"version"`
+
+	// S3 API configuration.
+	Credential auth.Credentials `json:"credential"`
+	Region     string           `json:"region"`
+	Worm       BoolFlag         `json:"worm"`
+
+	// Storage class configuration
+	StorageClass storageClassConfig `json:"storageclass"`
+
+	// Cache configuration
+	Cache CacheConfig `json:"cache"`
+
+	// KMS configuration
+	KMS crypto.KMSConfig `json:"kms"`
+
+	// Notification queue configuration.
+	Notify notifier `json:"notify"`
+
+	// Logger configuration
+	Logger loggerConfig `json:"logger"`
+
+	// Compression configuration
+	Compression compressionConfig `json:"compress"`
+
+	// OpenID configuration
+	OpenID struct {
+		// JWKS validator config.
+		JWKS validator.JWKSArgs `json:"jwks"`
+	} `json:"openid"`
+
+	// External policy enforcements.
+	Policy struct {
+		// OPA configuration.
+		OPA iampolicy.OpaArgs `json:"opa"`
+
+		// Add new external policy enforcements here.
+	} `json:"policy"`
+}

docs/config/config.sample.json

@@ -1,5 +1,5 @@
 {
-	"version": "31",
+	"version": "33",
 	"credential": {
 		"accessKey": "36J9X8EZI4KEV1G7EHXA",
 		"secretKey": "ECk2uqOoNqvtJIMQ3WYugvmNPL_-zm3WcRqP5vUM",
@@ -115,7 +115,6 @@
 				"streaming": {
 					"enable": false,
 					"clusterID": "",
-					"clientID": "",
 					"async": false,
 					"maxPubAcksInflight": 0
 				}

pkg/event/target/nats.go

@@ -40,7 +40,6 @@ type NATSArgs struct {
 	Streaming    struct {
 		Enable             bool   `json:"enable"`
 		ClusterID          string `json:"clusterID"`
-		ClientID           string `json:"clientID"`
 		Async              bool   `json:"async"`
 		MaxPubAcksInflight int    `json:"maxPubAcksInflight"`
 	} `json:"streaming"`
@@ -64,9 +63,6 @@ func (n NATSArgs) Validate() error {
 		if n.Streaming.ClusterID == "" {
 			return errors.New("empty cluster id")
 		}
-		if n.Streaming.ClientID == "" {
-			return errors.New("empty client id")
-		}
 	}
 
 	return nil
@@ -128,6 +124,7 @@ func (target *NATSTarget) Close() (err error) {
 func NewNATSTarget(id string, args NATSArgs) (*NATSTarget, error) {
 	var natsConn *nats.Conn
 	var stanConn stan.Conn
+	var clientID string
 	var err error
 
 	if args.Streaming.Enable {
@@ -137,12 +134,9 @@ func NewNATSTarget(id string, args NATSArgs) (*NATSTarget, error) {
 		}
 		addressURL := scheme + "://" + args.Username + ":" + args.Password + "@" + args.Address.String()
 
-		clientID := args.Streaming.ClientID
-		if clientID == "" {
-			clientID, err = getNewUUID()
-			if err != nil {
-				return nil, err
-			}
+		clientID, err = getNewUUID()
+		if err != nil {
+			return nil, err
 		}
 
 		connOpts := []stan.Option{stan.NatsURL(addressURL)}

pkg/madmin/examples/set-config.go

@@ -75,7 +75,6 @@ var configJSON = []byte(`{
 				"streaming": {
 					"enable": false,
 					"clusterID": "",
-					"clientID": "",
 					"async": false,
 					"maxPubAcksInflight": 0
 				}