logstash

An ETL (extract, transform and load) tool. Commonly used to load data from various sources, like databases and log files, into elasticsearch.

Check validity of a logstash configuration:

logstash --configtest --config {{logstash_config.conf}}

Run logstash using configuration:

sudo logstash --config {{logstash_config.conf}}

Run logstash with the most basic inline configuration string:

sudo logstash -e 'input {} filter {} output {}'