Kafka: Gerrit event producer for Apache Kafka

• Author: GerritForge
• Repository: https://gerrit.googlesource.com/plugins/events-kafka
• CI/Release: https://gerrit-ci.gerritforge.com/search/?q=events-kafka

Synopsis

This plugins allows to define a distributed stream of events published by Gerrit.

Events can be anything, from the traditional stream events to the Gerrit metrics.

This plugin requires Gerrit 2.13 or later.

Environments

• linux
• java-1.8
• Bazel

Build

Kafka plugin can be build as a regular ‘in-tree’ plugin. That means that is required to clone a Gerrit source tree first and then to have the Kafka plugin source directory into the /plugins path. The plugin depends on events-broker which is linked directly from source with the same ‘in-tree’ plugin structure.

Additionally, the plugins/external_plugin_deps.bzl file needs to be updated to match the Kafka plugin one.

git clone --recursive https://gerrit.googlesource.com/gerrit
git clone https://gerrit.googlesource.com/plugins/events-kafka gerrit/plugins/events-kafka
git clone https://gerrit.googlesource.com/modules/events-broker gerrit/plugins/events-broker
cd gerrit
rm plugins/external_plugin_deps.bzl
ln -s ./events-kafka/external_plugin_deps.bzl plugins/.

To build the events-kafka plugins, issue the command from the Gerrit source path:

bazel build plugins/events-kafka

The output is created in

bazel-genfiles/plugins/events-kafka/events-kafka.jar
bazel-genfiles/plugins/events-broker/events-broker.jar

Minimum Configuration

Assuming a running Kafka broker on the same Gerrit host, add the following settings to gerrit.config:

  [plugin "events-kafka"]
    bootstrapServers = localhost:9092