[GitHub] [samza] ryucc commented on a diff in pull request #1666: SAMZA-2780: Implement ZkSystemEnvironmentSetter

["ryucc (via GitHub)" <gi...@apache.org>]

ryucc commented on code in PR #1666:
URL: https://github.com/apache/samza/pull/1666#discussion_r1189210654


##########
samza-core/src/main/java/org/apache/samza/zk/ZkSystemEnvironmentSetter.java:
##########
@@ -0,0 +1,73 @@
+/*
+ * 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.samza.zk;
+
+import com.google.common.collect.ImmutableList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import org.apache.samza.config.Config;
+
+
+/**
+ * Reads the configs to set zookeeper environment variables for TLS.
+ * 
+ * See https://cwiki.apache.org/confluence/display/zookeeper/zookeeper+ssl+user+guide
+ */
+public class ZkSystemEnvironmentSetter {
+
+  private static final String SAMZA_PREFIX = "samza.system.";
+  private static final String ZOOKEEPER_CLIENT_SECURE = "zookeeper.client.secure";
+  private static final String ZOOKEEPER_CLIENT_CNXN_SOCKET = "zookeeper.clientCnxnSocket";
+  private static final String ZOOKEEPER_SSL_KEY_STORE_LOCATION = "zookeeper.ssl.keyStore.location";
+  private static final String ZOOKEEPER_SSL_KEY_STORE_PASSWORD = "zookeeper.ssl.keyStore.password";
+  private static final String ZOOKEEPER_SSL_KEY_STORE_TYPE = "zookeeper.ssl.keyStore.type";
+  private static final String ZOOKEEPER_SSL_TRUST_STORE_LOCATION = "zookeeper.ssl.trustStore.location";
+  private static final String ZOOKEEPER_SSL_TRUST_STORE_PASSWORD = "zookeeper.ssl.trustStore.password";
+  private static final String ZOOKEEPER_SSL_TRUST_STORE_TYPE = "zookeeper.ssl.trustStore.type";
+
+
+  private static final List<String> ZOOKEEPER_SSL_KEYS = ImmutableList.of(
+    ZOOKEEPER_CLIENT_SECURE,
+    ZOOKEEPER_CLIENT_CNXN_SOCKET,
+    ZOOKEEPER_SSL_KEY_STORE_LOCATION,
+    ZOOKEEPER_SSL_KEY_STORE_PASSWORD,
+    ZOOKEEPER_SSL_KEY_STORE_TYPE,
+    ZOOKEEPER_SSL_TRUST_STORE_LOCATION,
+    ZOOKEEPER_SSL_TRUST_STORE_PASSWORD,
+    ZOOKEEPER_SSL_TRUST_STORE_TYPE);

Review Comment:
   Is there a default we can use for the OSS release?



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