update logstash documentation
Logstash check file is not included by default with the agent and thus requires extra configuration steps (downloading/renaming check) that are missing from docs.
@@ -11,6 +11,10 @@ Get metrics from Logstash service in real time to:
### Configuration
+Logstash is a community-supported integration so it's not packaged with the agent.
+
+Download the [`check.py`][7] file, place it in the Agent's `checks.d` directory, and rename it to 'logstash.py'.
+
Create a file `logstash.yaml` in the Agent's `conf.d` directory.
#### Metric Collection
@@ -79,3 +83,4 @@ Learn more about infrastructure monitoring and all our integrations on [our blog
[4]: https://docs.datadoghq.com/agent/faq/agent-commands/#agent-status-and-information
[5]: https://github.com/DataDog/integrations-extras/blob/master/logstash/metadata.csv
[6]: https://www.datadoghq.com/blog/
+[7]: https://github.com/DataDog/integrations-extras/blob/master/logstash/check.py
