add more basic elastic options.

weed/command/scaffold.go

@@ -176,7 +176,11 @@ database = "seaweedfs"
 
 [elastic7]
 enabled = false
-servers = "http://localhost:9200"
+servers = "http://localhost1:9200,http://localhost2:9200,http://localhost3:9200"
+username = ""
+password = ""
+sniff_enabled = false
+healthcheck_enabled = false
 # increase the value is recommend, be sure the value in Elastic is greater or equal here
 index.max_result_window = 10000
 `

weed/filer/elastic/v7/elastic_store.go

@@ -47,23 +47,12 @@ type ElasticStore struct {
 func (store *ElasticStore) GetName() string {
 	return "elastic7"
 }
+
 func (store *ElasticStore) Initialize(configuration weed_util.Configuration, prefix string) (err error) {
-	servers := configuration.GetString(prefix + "servers")
-	if servers == "" {
-		return fmt.Errorf("error elastic endpoints.")
-	}
-	store.maxPageSize = configuration.GetInt(prefix + "index.max_result_window")
-	if store.maxPageSize <= 0 {
-		store.maxPageSize = 10000
-	}
-	glog.Infof("filer store elastic endpoints: %s, index.max_result_window:%d", servers, store.maxPageSize)
-	store.client, err = elastic.NewClient(
-		elastic.SetSniff(false),
-		elastic.SetHealthcheck(false),
-		elastic.SetURL(servers),
-	)
+	options := store.initialize(configuration, prefix)
+	store.client, err = elastic.NewClient(options...)
 	if err != nil {
-		return fmt.Errorf("init elastic %s: %v.", servers, err)
+		return fmt.Errorf("init elastic %v.", err)
 	}
 	if ok, err := store.client.IndexExists(indexKV).Do(context.Background()); err == nil && !ok {
 		_, err = store.client.CreateIndex(indexKV).Body(mappingWithoutQuery).Do(context.Background())
@@ -73,6 +62,30 @@ func (store *ElasticStore) Initialize(configuration weed_util.Configuration, pre
 	}
 	return nil
 }
+
+func (store *ElasticStore) initialize(configuration weed_util.Configuration, prefix string) (options []elastic.ClientOptionFunc) {
+	configuration.SetDefault(prefix+"servers", "http://localhost:9200")
+	servers := configuration.GetString(prefix + "servers")
+	url := make([]string, 0)
+	for _, v := range strings.Split(servers, ",") {
+		url = append(url, v)
+	}
+	options = append(options, elastic.SetURL(url...))
+	username := configuration.GetString(prefix + "username")
+	password := configuration.GetString(prefix + "password")
+	if username != "" && password != "" {
+		options = append(options, elastic.SetBasicAuth(username, password))
+	}
+	options = append(options, elastic.SetSniff(configuration.GetBool(prefix+"sniff_enabled")))
+	options = append(options, elastic.SetHealthcheck(configuration.GetBool(prefix+"healthcheck_enabled")))
+	store.maxPageSize = configuration.GetInt(prefix + "index.max_result_window")
+	if store.maxPageSize <= 0 {
+		store.maxPageSize = 10000
+	}
+	glog.Infof("filer store elastic endpoints: %s.", servers)
+	return options
+}
+
 func (store *ElasticStore) BeginTransaction(ctx context.Context) (context.Context, error) {
 	return ctx, nil
 }
@@ -82,6 +95,7 @@ func (store *ElasticStore) CommitTransaction(ctx context.Context) error {
 func (store *ElasticStore) RollbackTransaction(ctx context.Context) error {
 	return nil
 }
+
 func (store *ElasticStore) ListDirectoryPrefixedEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int, prefix string) (entries []*filer.Entry, err error) {
 	return nil, filer.ErrUnsupportedListDirectoryPrefixed
 }
@@ -111,9 +125,11 @@ func (store *ElasticStore) InsertEntry(ctx context.Context, entry *filer.Entry)
 	}
 	return nil
 }
+
 func (store *ElasticStore) UpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
 	return store.InsertEntry(ctx, entry)
 }
+
 func (store *ElasticStore) FindEntry(ctx context.Context, fullpath weed_util.FullPath) (entry *filer.Entry, err error) {
 	index := getIndex(fullpath)
 	id := fmt.Sprintf("%x", md5.Sum([]byte(fullpath)))
@@ -136,6 +152,7 @@ func (store *ElasticStore) FindEntry(ctx context.Context, fullpath weed_util.Ful
 	glog.Errorf("find entry(%s),%v.", string(fullpath), err)
 	return nil, filer_pb.ErrNotFound
 }
+
 func (store *ElasticStore) DeleteEntry(ctx context.Context, fullpath weed_util.FullPath) (err error) {
 	index := getIndex(fullpath)
 	id := fmt.Sprintf("%x", md5.Sum([]byte(fullpath)))
@@ -144,6 +161,7 @@ func (store *ElasticStore) DeleteEntry(ctx context.Context, fullpath weed_util.F
 	}
 	return store.deleteEntry(ctx, index, id)
 }
+
 func (store *ElasticStore) deleteIndex(ctx context.Context, index string) (err error) {
 	deleteResult, err := store.client.DeleteIndex(index).Do(ctx)
 	if elastic.IsNotFound(err) || (err == nil && deleteResult.Acknowledged) {
@@ -152,6 +170,7 @@ func (store *ElasticStore) deleteIndex(ctx context.Context, index string) (err e
 	glog.Errorf("delete index(%s) %v.", index, err)
 	return err
 }
+
 func (store *ElasticStore) deleteEntry(ctx context.Context, index, id string) (err error) {
 	deleteResult, err := store.client.Delete().
 		Index(index).
@@ -166,6 +185,7 @@ func (store *ElasticStore) deleteEntry(ctx context.Context, index, id string) (e
 	glog.Errorf("delete entry(index:%s,_id:%s) %v.", index, id, err)
 	return fmt.Errorf("delete entry %v.", err)
 }
+
 func (store *ElasticStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
 	if entries, err := store.ListDirectoryEntries(ctx, fullpath, "", false, math.MaxInt32); err == nil {
 		for _, entry := range entries {