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rancher_community-catalog/kubernetes-templates/kafka/1/README.md

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Apache Kafka (Experimental)

Info:

This template creates, scale in and scale out a multinodes kafka broker cluster on top of k8s. The configuration is generated with confd from k8s. Cluster size are variable after deployment, and get reconfigured.

Usage:

Select Apache Kafka from catalog.

Enter the number of nodes, mem and refresh interval for the kafka cluster.

Change the following kafka default parameters, if you need:

  • kafka_name="kafka" # kafka k8s service and rc name.
  • kafka_namespace="kafka" # kafka k8s namespace
  • kafka_scale=3 # kafka scale to deploy.
  • kafka_mem=512 # kafka broker memory.
  • kafka_log_dir="/opt/kafka/logs" # Kafka log dir.
  • kafka_log_retention="168" # kafka log retention.
  • kafka_num_partitions="1" # Kafka partitions number
  • kafka_delete_topics="false" # kafka delete topics
  • kafka_pub_ip= < true | false > # Advertise public ip to zookeeper.
  • zk_link="kafka-zk/zk" # zookeeper namespace/service to connect to.

Click deploy.

Kafka can now be accessed over the Rancher network.

Note: When you scale the cluster, zero downtime is not guaranteed..yet..