kafka ssl sink Kafka SSL Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Send data to Kafka topics wit TLS/SSL support.

Configuration Options

The following table summarizes the configuration options available for the kafka-ssl-sink Kamelet:

Property Name Description Type Default Example

bootstrapServers

Brokers

Required Comma separated list of Kafka Broker URLs.

string

sslKeyPassword

SSL Key Password

Required The password of the private key in the key store file.

string

sslKeystoreLocation

SSL Keystore Location

Required The location of the key store file. This is optional for client and can be used for two-way authentication for client.

string

sslKeystorePassword

SSL Keystore Password

Required The store password for the key store file.This is optional for client and only needed if ssl.keystore.location is configured.

string

sslTruststoreLocation

SSL Truststore Location

Required The location of the trust store file.

string

sslTruststorePassword

SSL Truststore Password

Required The store password for the trust store file.

string

topic

Topic Names

Required Comma separated list of Kafka topic names.

string

saslMechanism

SASL Mechanism

The Simple Authentication and Security Layer (SASL) Mechanism used.

string

GSSAPI

securityProtocol

Security Protocol

Protocol used to communicate with brokers. SASL_PLAINTEXT, PLAINTEXT, SASL_SSL and SSL are supported.

string

SSL

sslEnabledProtocols

SSL Enabled Protocols

The list of protocols enabled for SSL connections. TLSv1.2, TLSv1.1 and TLSv1 are enabled by default.

string

TLSv1.2,TLSv1.1,TLSv1

sslEndpointAlgorithm

SSL Endpoint Algorithm

The endpoint identification algorithm to validate server hostname using server certificate. Use none or false to disable server hostname verification.

string

https

sslProtocol

SSL Protocol

The SSL protocol used to generate the SSLContext. Default setting is TLS, which is fine for most cases. Allowed values in recent JVMs are TLS, TLSv1.1 and TLSv1.2. SSL, SSLv2 and SSLv3 may be supported in older JVMs, but their usage is discouraged due to known security vulnerabilities.

string

TLSv1.2

Dependencies

At runtime, the kafka-ssl-sink Kamelet relies upon the presence of the following dependencies:

  • camel:core

  • camel:kafka

  • camel:kamelet

Camel JBang usage

Prerequisites

  • You’ve installed JBang.

  • You have executed the following command:

jbang app install camel@apache/camel

Supposing you have a file named route.yaml with this content:

- route:
    from:
      uri: "kamelet:timer-source"
      parameters:
        period: 10000
        message: 'test'
      steps:
        - to:
            uri: "kamelet:kafka-ssl-sink"

You can now run it directly through the following command

camel run route.yaml

Kafka SSL Sink Kamelet Description

TLS/SSL Encryption

This Kamelet provides secure communication with Kafka brokers using TLS/SSL encryption. It supports both one-way and mutual (two-way) SSL authentication.

Certificate Configuration

Requires configuration of SSL keystores and truststores:

  • Keystore: Contains the client’s private key and certificate (for mutual authentication)

  • Truststore: Contains trusted certificate authorities and broker certificates

  • Password protection for both keystores and private keys

SSL Protocol Support

Supports modern TLS protocols (TLSv1.2 by default) with configurable enabled protocols. Older SSL versions are discouraged due to security vulnerabilities.

Hostname Verification

Includes endpoint identification algorithm for server hostname verification using server certificates, ensuring protection against man-in-the-middle attacks.

Production Security

Designed for production environments requiring strong encryption and certificate-based authentication. Provides comprehensive security for sensitive data transmission.

Kamelet source file

https://github.com/apache/camel-kamelets/blob/main/kamelets/kafka-ssl-sink.kamelet.yaml

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