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@fluidframework/server-services-ordering-rdkafka

Fluid server services rdkafka orderer implementation for Fluid reference service.

See GitHub for more details on the Fluid Framework and packages within.

SSL Setup

Fundamentally, to setup SSL/TLS for Kafka, both Kafka client and Kafka server changes are needed.

This implementation using node-rdkafka provides built-in support for SSL/TLS. But, by default, SSL is disabled in this implementation since the setup in routerlicious' docker-compose.yml does not configure SSL for the Kafka service.

If you wish to enable SSL for Kafka, please follow these instructions:

  1. Configure SSL in the Kafka service. General instructions on how to do that can be found in the official Kafka documentation. But since we are using node-rdkafka, which is based on librdkafka, you can use librdkafka's gen-ssl-certs.sh script to help you with the process. Instructions are available here. An example of putting the instructions in practice can be found below. Please note that for this example we will be using self-signed certificates, plus Docker Kafka's service name as BROKER, and also the default passwords and values in the gen-ssl-certs.sh script. Finally, the example below only configures encryption, and not Kafka client authentication.

    1. Under FluidFramework/server/routerlicious, create a directory called certs. Open the directory.

      $ mkdir certs
$ cd certs

    2. Save a copy of gen-ssl-certs.sh in certs. Make sure to make it executable.

      $ chmod +rx gen-ssl-certs.sh

    3. Run the following commands:

      $ ./gen-ssl-certs.sh ca ca-cert Kafka-Security-CA
$ BROKER=kafka
$ ./gen-ssl-certs.sh -k server ca-cert broker_${BROKER}_ ${BROKER}

    You should now have new files under certs, including a JKS Truststore, a JKS Keystore and the ca-cert file.

  2. Update docker-compose.yml under FluidFramework/server/routerlicious to use the following setup for Kafka:

    kafka:
    image: wurstmeister/kafka:2.11-1.1.1
    ports:
        - "9092:9092"
    environment:
        KAFKA_ADVERTISED_LISTENERS: "SSL://kafka:9092"
        KAFKA_LISTENERS: "SSL://0.0.0.0:9092"
        KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
        KAFKA_CREATE_TOPICS: "deltas:8:1,rawdeltas:8:1,testtopic:8:1,deltas2:8:1,rawdeltas2:8:1"
        KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
        KAFKA_SSL_KEYSTORE_TYPE: "JKS"
        KAFKA_SSL_KEYSTORE_LOCATION: "/certs/broker_kafka_server.keystore.jks"
        KAFKA_SSL_KEYSTORE_PASSWORD: "abcdefgh"
        KAFKA_SSL_KEY_PASSWORD: "abcdefgh"
        KAFKA_SSL_TRUSTSTORE_TYPE: "JKS"
        KAFKA_SSL_TRUSTSTORE_LOCATION: "/certs/broker_kafka_server.truststore.jks"
        KAFKA_SSL_TRUSTSTORE_PASSWORD: "abcdefgh"
        KAFKA_SSL_CLIENT_AUTH: "none"
        KAFKA_SECURITY_INTER_BROKER_PROTOCOL: "SSL"
    volumes:
        - ./certs:/certs
    restart: always

  3. Update docker-compose.dev.yml under FluidFramework/server/routerlicious to use volume mapping and copy the certs folder to the different Docker services. Please note that ... below means that the other volume mapping rules have been omitted.

    version: "3.4"
services:
    alfred:
        volumes: ...
            - ./certs:/certs
    deli:
        volumes: ...
            - ./certs:/certs
    scriptorium:
        volumes: ...
            - ./certs:/certs
    copier:
        volumes: ...
            - ./certs:/certs
    scribe:
        volumes: ...
            - ./certs:/certs
    riddler:
        volumes: ...
            - ./certs:/certs

  4. Update config.json under FluidFramework/server/routerlicious/packages/routerlicious/config to include the sslCACertFilePath property in kafka.lib. Example:

    "kafka": {
        "lib": {
            "name": "rdkafka",
            "endpoint": "kafka:9092",
            "producerPollIntervalMs": 10,
            "numberOfPartitions": 8,
            "replicationFactor": 1,
            "rdkafkaOptimizedRebalance": true,
            "rdkafkaAutomaticConsume": true,
            "rdkafkaConsumeTimeout": 5,
            "rdkafkaMaxConsumerCommitRetries": 10,
            "sslCACertFilePath": "/certs/ca-cert"
        }
    },

  5. Now, you can build and run routerlicious as usual and it will use SSL/TLS for Kafka.