PowerExchange for Kafka User Guide for PowerCenter

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Configuring the krb5.conf file to Read Data from or Write to a Kerberised Kafka Cluster (Optional)

To read from or write to a Kerberised Kafka cluster, configure the default realm, KDC, and Kafka source or target session properties.

Before you read from or write to a Kerberized Kafka cluster, perform the following tasks:

Ensure that you have the

krb5.conf

file for the Kerberised Kafka cluster.

Configure the default realm and KDC. If the default

/etc/krb5.conf

file is not configured or you want to change the configuration, add the following lines to the

/etc/krb5.conf

file:

[libdefaults]
default_realm = <REALM NAME>
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 24h
renew_lifetime = 7d
forwardable = true

[realms]
<REALM NAME> = {
kdc = <Location where KDC is installed> 
admin_server = <Location where KDC is installed>
                                }
 [domain_realm]
.<domain name or hostname> = <KERBEROS DOMAIN NAME>
<domain name or hostname> = <KERBEROS DOMAIN NAME>

To pass a static JAAS configuration file into the JVM using the

java.security.auth.login.config

property at runtime, perform the following tasks:

Ensure that you have JAAS configuration file.

For information about creating JAAS configuration and configuring Keytab for Kafka clients, see the Apache Kafka documentation at https://kafka.apache.org/0101/documentation/#security

For example, the JAAS configuration file can contain the following lines of configuration:

//Kafka Client Authentication. Used for client to kafka broker connection
KafkaClient {
com.sun.security.auth.module.Krb5LoginModule required
doNotPrompt=true
useKeyTab=true
storeKey=true
keyTab="<path to Kafka keytab  file>/<Kafka keytab file name>"
principal="<principal name>"
client=true
};

Place the JAAS config file and keytab file in the same location on all the nodes.

Informatica recommends that you place the files in a location that is accessible to all the nodes in the cluster. Example:

/etc

/temp

Configure the following properties:

Kafka connection: Configure the
Kerberos Configuration Properties
property in a Kafka connection and specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI
Sources: Configure the
Consumer Configuration Properties
property in the source session properties to override the value specified in the
Kerberos Configuration Properties
property in a Kafka connection. Specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI
Targets: Configure the
Producer Configuration Properties
property in the target session properties to override the value specified in the
Kerberos Configuration Properties
property in a Kafka connection. Specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI

To embed the JAAS configuration in the

sasl.jaas.config

configuration property, configure the following properties:

Kafka connection: Configure the
Kerberos Configuration Properties
property in a Kafka connection and specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI, sasl.jaas.config=com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true storeKey=true doNotPrompt=true serviceName="<service_name>" keyTab="<location of keytab file>" client=true principal="<principal_name>";
Sources: Configure the
Consumer Configuration Properties
property in the source session properties to override the value specified in the
Kerberos Configuration Properties
property in a Kafka connection. Specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI, sasl.jaas.config=com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true storeKey=true doNotPrompt=true serviceName="<service_name>" keyTab="<location of keytab file>" client=true principal="<principal_name>";
Targets: Configure the
Producer Configuration Properties
property in the target session properties to override the value specified in the
Kerberos Configuration Properties
property in a Kafka connection. Specify the value in the following format:

security.protocol=SASL_PLAINTEXT,sasl.kerberos.service.name=kafka,sasl.mechanism=GSSAPI, sasl.jaas.config=com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true storeKey=true doNotPrompt=true serviceName="<service_name>" keyTab="<location of keytab file>" client=true principal="<principal_name>";

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Table of Contents

PowerExchange for Kafka User Guide for PowerCenter

PowerExchange for Kafka User Guide for PowerCenter

Configuring the krb5.conf file to Read Data from or Write to a Kerberised Kafka Cluster (Optional)

Configuring the krb5.conf file to Read Data from or Write to a Kerberised Kafka Cluster (Optional)