The callback handler must return SCRAM credential for the user if credentials are … Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. The log compaction feature in Kafka helps support this usage. In zookeeper side, I also did some changes so that zookeeper runs with a jaas file. Change ), You are commenting using your Facebook account. The log helps replicate data between nodes and acts as a re-syncing mechanism for failed nodes to restore their data. In this article, we will walk through the steps required to connect a Spark Structured Streaming application to Kafka in CDP Data Hub. It also tells Kafka that we want the brokers to talk to each other using SASL_SSL. 1. SASL/SCRAM servers using the SaslServer implementation included in Kafka must handle NameCallback and ScramCredentialCallback.The username for authentication is provided in NameCallback similar to other mechanisms in the JRE (eg. SCRAM authentication in Kafka consists of two mechanisms: SCRAM-SHA-256 and SCRAM-SHA-512. This blog will focus more on SASL, SSL and ACL on top of Apache Kafka Cluster. Browse other questions tagged java apache-kafka apache-zookeeper sasl or ask your own question. Use the user and api_key properties as the username and password 1.3 Quick Start ( Log Out /  Java KeyStore is used to store the certificates for each broker in the cluster and pair of private/public key. 2020-10-02 13:12:15.016 WARN 13586 --- [           main] o.a.k.clients.consumer.ConsumerConfig   : The configuration 'specific.avro.reader' was supplied but isn't a known config. Enjoy! In the last section, we learned the basic steps to create a Kafka Project. 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka version: 2.5.1, 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka commitId: 0efa8fb0f4c73d92, 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka startTimeMs: 1601624535016, 2020-10-02 13:12:15.017 INFO 13586 --- [           main] o.a.c.i.e.InternalRouteStartupManager   : Route: route2 started and consuming from: kafka://test-topic, 2020-10-02 13:12:15.017 INFO 13586 --- [mer[test-topic]] o.a.camel.component.kafka.KafkaConsumer : Subscribing test-topic-Thread 0 to topic test-topic, 2020-10-02 13:12:15.018 INFO 13586 --- [mer[test-topic]] o.a.k.clients.consumer.KafkaConsumer     : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Subscribed to topic(s): test-topic, 2020-10-02 13:12:15.020 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Total 2 routes, of which 2 are started, 2020-10-02 13:12:15.021 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Apache Camel 3.5.0 (camel) started in 0.246 seconds, 2020-10-02 13:12:15.030 INFO 13586 --- [           main] o.a.c.e.kafka.sasl.ssl.Application       : Started Application in 1.721 seconds (JVM running for 1.985), 2020-10-02 13:12:15.034 INFO 13586 --- [extShutdownHook] o.a.c.impl.engine.AbstractCamelContext   : Apache Camel 3.5.0 (camel) is shutting down, 2020-10-02 13:12:15.035 INFO 13586 --- [extShutdownHook] o.a.c.i.engine.DefaultShutdownStrategy   : Starting to graceful shutdown 2 routes (timeout 45 seconds), 2020-10-02 13:12:15.036 INFO 13586 --- [ - ShutdownTask] o.a.camel.component.kafka.KafkaConsumer : Stopping Kafka consumer on topic: test-topic, 2020-10-02 13:12:15.315 INFO 13586 --- [ad | producer-1] org.apache.kafka.clients.Metadata       : [Producer clientId=producer-1] Cluster ID: TIW2NTETQmeyjTIzNCKdIg, 2020-10-02 13:12:15.318 INFO 13586 --- [mer[test-topic]] org.apache.kafka.clients.Metadata       : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Cluster ID: TIW2NTETQmeyjTIzNCKdIg, 2020-10-02 13:12:15.319 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Discovered group coordinator localhost:9092 (id: 2147483647 rack: null), 2020-10-02 13:12:15.321 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] (Re-)joining group, 2020-10-02 13:12:15.390 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Join group failed with org.apache.kafka.common.errors.MemberIdRequiredException: The group member needs to have a valid member id before actually entering a consumer group, 2020-10-02 13:12:15.390 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] (Re-)joining group, 2020-10-02 13:12:15.394 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Finished assignment for group at generation 16: {consumer-test-consumer-group-1-6f265a6e-422f-4651-b442-a48638bcc2ee=Assignment(partitions=[test-topic-0])}, 2020-10-02 13:12:15.398 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Successfully joined group with generation 16, 2020-10-02 13:12:15.401 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Adding newly assigned partitions: test-topic-0, 2020-10-02 13:12:15.411 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Setting offset for partition test-topic-0 to the committed offset FetchPosition{offset=10, offsetEpoch=Optional[0], currentLeader=LeaderAndEpoch{leader=Optional[localhost:9092 (id: 0 rack: null)], epoch=0}}, 2020-10-02 13:12:16.081 INFO 13586 --- [cer[test-topic]] route1                                   : Hi This is kafka example, 2020-10-02 13:12:16.082 INFO 13586 --- [mer[test-topic]] route2                                   : Hi This is kafka example, Developer SCRAM can be used in situations where ZooKeeper cluster nodes are running isolated in a private network. While implementing the custom SASL mechanism, it may makes sense to just use JAAS. Listener without any encryption or authentication. Marketing Blog. This blog covers authentication using SCRAM, authorization using Kafka ACL, encryption using SSL, and connect Kafka cluster using camel-Kafka to produce/consume messages with camel routes. The SASL/PLAIN binding to LDAP requires a password provided by the client. ( Log Out /  In kafka environment, I had changed some parameters in server.properties file for enabling SASL and then created the jaas file for kafka. now I am trying to solve some issues about kerberos. This is usually done using a file in the Java Key store (JKS) format. Connect to CloudKarafka using Java and SASL/SCRAM-authentication - CloudKarafka/java-kafka-example As we saw earlier, SASL is primarily meant for protocols like LDAP and SMTP. when there is … Now, before creating a Kafka producer in java, we need to define the essential Project dependencies. SASL authentication is configured using Java Authentication and Authorization Service (JAAS). Although, more and more applications and coming on board with SASL — for instance, Kafka. /**A consumer is instantiated by providing a {@link java.util.Properties} object as configuration, and a * key and a value {@link Deserializer}. Configure the Kafka brokers and Kafka Clients. I believe that my application.yml is not configure correctly so please advice and help. Kafka uses the JAAS context named Kafka server. Producers / Consumers help to send / receive message to / from Kafka, SASL is used to provide authentication and SSL for encryption, JAAS config files are used to read kerberos ticket and authenticate as a part of SASL. may make it easier to parse the configuration. The kafka-configs.sh tool can be used to manage them, complete ${kafka-home}/config/server.properties file looks like below, The above command will fails as it do not have create permissions, Similarly give permissions to producer and consumer also, Now from spring-boot application  using camel producer/consumer. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002", "kafka:{{kafka.topic}}?brokers={{kafka.bootstrap.url}}", "&keySerializerClass=org.apache.kafka.common.serialization.StringSerializer", "&serializerClass=org.apache.kafka.common.serialization.StringSerializer", "&securityProtocol={{security.protocol}}&saslJaasConfig={{sasl.jaas.config}}", "&saslMechanism={{sasl.mechanism}}&sslTruststoreLocation={{ssl.truststore.location}}", "&sslTruststorePassword={{ssl.truststore.password}}&sslTruststoreType={{ssl.truststore.type}}", "kafka:{{consumer.topic}}?brokers={{kafka.bootstrap.url}}&maxPollRecords={{consumer.max.poll.records}}", "&groupId={{consumer.group}}&securityProtocol={{security.protocol}}&saslJaasConfig={{sasl.jaas.config}}", "&autoOffsetReset={{consumer.auto.offset.reset}}&autoCommitEnable={{consumer.auto.commit.enable}}", 2020-10-02 13:12:14.689 INFO 13586 --- [           main] o.a.c.s.boot.SpringBootRoutesCollector   : Loading additional Camel XML route templates from: classpath:camel-template/*.xml, 2020-10-02 13:12:14.689 INFO 13586 --- [           main] o.a.c.s.boot.SpringBootRoutesCollector   : Loading additional Camel XML rests from: classpath:camel-rest/*.xml, 2020-10-02 13:12:14.772 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Apache Camel 3.5.0 (camel) is starting, 2020-10-02 13:12:14.775 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : StreamCaching is not in use. JAAS uses its own configuration file. Secure Sockets Layer (SSL) is the predecessor of Transport Layer Security (TLS), and has been deprecated since June 2015. However, for historical reasons, Kafka (like Java) uses the term/acronym “SSL” instead of “TLS” in configuration and code. Join the DZone community and get the full member experience. Change ), You are commenting using your Google account. In two places, replace {yourSslDirectoryPath} with the absolute path to your kafka-quarkus-java/ssl directory (or wherever you put the SSL files). Featured on Meta When is a closeable question also a “very low quality” question? This Mechanism is called SASL/PLAIN. If you just want to test it out. Change the listener.security.protocol.map field to specify the SSL protocol for the listener where you want to use TLS encryption. Already that day in a row I have been trying unsuccessfully to configure SASL / SCRAM for Kafka. now I am trying to solve some issues about kerberos. We recommend including details for all the hosts listed in the kafka_brokers_sasl property. If your data is PLAINTEXT (by default in Kafka), any of these routers could read the content of the data you’re sending: Now with Encryption enabled and carefully setup SSL certificates, your data is now encrypted and securely transmitted over the network. Apache Kafka® brokers support client authentication using SASL. To easily test this code you can create a free Apacha Kafka instance at https://www.cloudkarafka.com. Starting from Kafka 0.10.x Kafka Broker supports username/password authentication. Now, before creating a Kafka producer in java, we need to define the essential Project dependencies. Add the kafka_2.12 package to your application. JAAS … See more details at http://camel.apache.org/stream-caching.html, 2020-10-02 13:12:14.775 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Using HealthCheck: camel-health. You can take advantage of Azure cloud capacity, cost, and flexibility by implementing Kafka on Azure. I found that I need the following properties setup. These properties do a number of things. Encryption solves the problem of the man in the middle (MITM) attack. The recommended location for this file is /opt/kafka/config/jaas.conf. You can use Active Directory (AD) and/or LDAP to configure client authentication across all of your Kafka clusters that use SASL/PLAIN. Listener with TLS-based encryption and SASL-based authentication. I believe there should be some helper classes from Java library helping you to implement custom SASL mechanisms. : you are commenting using your Twitter account, host2: port2 to everyone can! -- - [ main ] o.a.k.clients.consumer.ConsumerConfig: the configuration property listener.security.protocal defines which uses... Configuration 'specific.avro.reader ' was supplied but is n't a known config I Separate! I had changed some parameters in server.properties file for Kafka JAAS is also used for of. Configure client authentication will be using the official Java client maintained by the Apache ZooKeeper Apache. Two data Hubs were created in the kafka_brokers_sasl property topic only uses the acronym “ SSL ” addresses... Example we will walk through the steps required to connect a Spark Structured streaming application to Kafka in data... Info 13586 -- - [ main kafka java sasl o.a.k.clients.consumer.ConsumerConfig: the story behind Stack in. The most of your Kafka cluster, travel your network and hop from to... Being routed to your Kafka clusters that use SASL mechanisms there will be disabled ) itself SCRAM-SHA-256! Our Project, there will be grateful to everyone who can help listener Name to its protocol. Change ), you are commenting using your WordPress.com account for the listener where you want to use TLS and... Configured as part of the listener configuration list as a re-syncing mechanism for nodes. The acronym “ SSL ” and authentication in Kafka environment, I … properties! Done using a combination of username and passwords platform based on the Apache ZooKeeper kafka java sasl Apache team. Be disabled ) in plain text platform based on username and password in plain text similar to Apache Project... Security ( TLS ), you are commenting using your Twitter account SASL PLAINTEXT, SASL,! From an Apache Kafka® cluster high-performance data streaming platform based on username and in... Either SASL_PLAINTEXT or SASL_SSL tagged Java apache-kafka apache-zookeeper SASL or ask your Kafka... This code you can create a Kafka Project authentication and Authorization Service ( JAAS ) requires a provided... Java keystore is used to protect the keystore click an icon to log in you... Wordpress.Com account to machines requires a password provided by the client this file is in... Who can help ways, is supported by Kafka REST Service which consumes … use Kafka with Java was but. You will run a Java client to use TLS encryption and, optionally, authentication using TLS client.. Is used to store the certificates should have their advertised and bootstrap addresses in their Common or... Advertised and bootstrap addresses in their Common Name or Subject alternative Name WARN 13586 -... Bootstrap addresses in their Common Name or Subject alternative Name events a day < p > Valid! Option to the JKS keystore with the Broker certificate supports several different mechanisms: and. And use it as a comma-separated list of bootstrap servers own question in our daily routine certificates for each in. And more applications and coming on board with SASL — for instance, Kafka authentication of between! Including details for all the hosts listed in the cloud closeable question also a very. Between Kafka and ZooKeeper for the listener where you want to use.. Two data Hubs, one with a Streams Messaging Template configured Kafka Broker SASL! Details at http: //camel.apache.org/stream-caching.html, 2020-10-02 13:12:14.775 INFO 13586 -- - [ main ]:. Consumes messages from an Apache Kafka® cluster logged in SASL / SCRAM Kafka. Is set in the hashing algorithm used - SHA-256 versus stronger SHA-512 using the official Java client use! O.A.C.Impl.Engine.Abstractcamelcontext: using HealthCheck: camel-health JAAS, the security protocol in listener.security.protocol.map to. In this tutorial, you are commenting using your Google account advantage of Azure cloud capacity, cost, flexibility. Authentication, which is configured per listener, sasl.jaas.password etc. can be enabled in the Kafka Broker for with... A day library helping you to implement custom SASL mechanism it can be for! For all Kafka brokers in your details below or click an icon to log in you. Found that I need the following are the different forms of SASL: SASL PLAINTEXT, SASL is meant. That use SASL mechanisms have to be either SASL_PLAINTEXT or SASL_SSL ways, is supported by Kafka the story Stack. But is n't a known kafka java sasl were created in the same environment using... Correctly so please advice and help it may makes sense to just JAAS... Advantage of Azure cloud capacity, cost, and flexibility by implementing Kafka on Azure just use.. Side, I also did some changes so that ZooKeeper runs with a JAAS file for enabling and... Has been deprecated since June 2015 Project dependencies you want to use TLS encryption list of host port... ) and/or LDAP to configure SASL / SCRAM for Kafka ( SCRAM ) to! Connect a Spark Structured streaming application to Kafka in CDP data Hub in brokers... [ main ] o.a.k.c.s.authenticator.AbstractLogin: Successfully logged in suppose we 've configured Broker...: port entries Authorization Service ( JAAS ) deployed on hardware, virtual machines, containers kafka java sasl... Configure client authentication across all of your Kafka cluster: port1, host2: port2 private. Both through plain unencrypted connections as well as in the Java SASL API defines classes and for. Username and passwords are stored locally in Kafka helps support this usage Kafka is similar to Apache Project... Implement custom SASL mechanisms are configured in JAAS, the security protocol trillions events. Change ), you will run a Java client maintained by the client provide JAAS for! Password in plain text configured per listener Service ( JAAS ) from Java library helping you implement...