Implement batch-expiration for objects (#17946)

Based on an initial PR from -
https://github.com/minio/minio/pull/17792

But fully completes it with newer finalized YAML spec.

internal/config/batch/help.go

@@ -0,0 +1,49 @@
+// Copyright (c) 2015-2023 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package batch
+
+import "github.com/minio/minio/internal/config"
+
+// Help template for batch feature.
+var (
+	defaultHelpPostfix = func(key string) string {
+		return config.DefaultHelpPostfix(DefaultKVS, key)
+	}
+
+	// Help provides help for config values
+	Help = config.HelpKVS{
+		config.HelpKV{
+			Key:         ReplicationWorkersWait,
+			Description: `maximum sleep duration between objects to slow down batch replication operation` + defaultHelpPostfix(ReplicationWorkersWait),
+			Optional:    true,
+			Type:        "duration",
+		},
+		config.HelpKV{
+			Key:         KeyRotationWorkersWait,
+			Description: `maximum sleep duration between objects to slow down batch keyrotation operation` + defaultHelpPostfix(KeyRotationWorkersWait),
+			Optional:    true,
+			Type:        "duration",
+		},
+		config.HelpKV{
+			Key:         ExpirationWorkersWait,
+			Description: "maximum sleep duration between objects to slow down batch expiration operation" + defaultHelpPostfix(ExpirationWorkersWait),
+			Optional:    true,
+			Type:        "duration",
+		},
+	}
+)