Pochatkin commented on code in PR #4389:
URL: https://github.com/apache/ozone/pull/4389#discussion_r1143787816


##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/s3http/vault/auth/AuthType.java:
##########
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.ozone.om.s3http.vault.auth;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.ozone.om.s3http.S3SecretStoreConfigurationKeys;
+
+import static 
org.apache.hadoop.ozone.om.s3http.S3SecretStoreConfigurationKeys.APP_ROLE_ID;
+import static 
org.apache.hadoop.ozone.om.s3http.S3SecretStoreConfigurationKeys.APP_ROLE_PATH;
+import static 
org.apache.hadoop.ozone.om.s3http.S3SecretStoreConfigurationKeys.APP_ROLE_SECRET;
+import static 
org.apache.hadoop.ozone.om.s3http.S3SecretStoreConfigurationKeys.AUTH_TYPE;
+
+/**
+ * Type of authentication method.
+ */
+public enum AuthType {
+  APP_ROLE("appRole"),
+  TOKEN("token");
+
+  private final String name;
+
+  AuthType(String name) {
+    this.name = name;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public static Auth fromConf(Configuration conf) {
+    AuthType authType = AuthType.valueOf(conf.get(AUTH_TYPE));
+    switch (authType) {
+    case TOKEN:
+      String token = conf.get(S3SecretStoreConfigurationKeys.TOKEN);

Review Comment:
   This method may be used in cases when token lifetime is infinite, of course 
if token renewal currently it will fail on next Vault access. I think I will 
create a follow-up ticket with ability to configure token provider in 
configuration.



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