Kafka source for syslog-ng

The syslog-ng application can read messages from the sources. It processes them with filters, rewrite rules, parsers and finally sends messages to their destinations. The syslog-ng application already has a Kafka destination that is implemented in Java. The Kafka source will allow syslog-ng to read messages from Kafka. This can be used for example as a queue between several syslog-ng instances.