[[logstash-reference]]
= Logstash Reference

include::{docs-root}/shared/versions/stack/{source_branch}.asciidoc[]
include::{docs-root}/shared/attributes.asciidoc[]
include::./include/attributes-ls.asciidoc[]
include::./include/attributes-lsplugins.asciidoc[]

:include-xpack:         true
:lang:                  en
:xls-repo-dir:          {docdir}/../x-pack/docs/{lang}
:log-repo-dir:          {docdir}
:plugins-repo-dir:      {docdir}/../../logstash-docs/docs
:docker-repo:           docker.elastic.co/logstash/logstash
:docker-image:          {docker-repo}:{logstash_version}

:versioned_docs:        false

:jdk:                   1.8.0
:lsissue:               https://github.com/elastic/logstash/issues
:lsplugindocs:          https://www.elastic.co/guide/en/logstash-versioned-plugins/current
:tab-widget-dir:         {docdir}/static/tab-widgets


[[introduction]]
== Logstash Introduction

Logstash is an open source data collection engine with real-time pipelining capabilities. Logstash can dynamically
unify data from disparate sources and normalize the data into destinations of your choice. Cleanse and democratize all
your data for diverse advanced downstream analytics and visualization use cases.

While Logstash originally drove innovation in log collection, its capabilities extend well beyond that use case. Any
type of event can be enriched and transformed with a broad array of input, filter, and output plugins, with many
native codecs further simplifying the ingestion process. Logstash accelerates your insights by harnessing a greater
volume and variety of data.


[serverless]
.Logstash to {serverless-full}
****
You'll use the {ls} <<plugins-outputs-elasticsearch,{es} output plugin>> to send data to {serverless-full}.
Note these differences between {es-serverless} and both {ess} and self-managed {es}:

* Use *API keys* to access {serverless-full} from {ls}. 
Any user-based security settings in your in your <<plugins-outputs-elasticsearch,{es} output plugin>> configuration are ignored and may cause errors.
* {serverless-full} uses *data streams* and {ref}/data-stream-lifecycle.html[{dlm} ({dlm-init})] instead of {ilm} ({ilm-init}). 
Any {ilm-init} settings in your <<plugins-outputs-elasticsearch,{es} output plugin>> configuration are ignored and may cause errors.
* *{ls} monitoring* is available through the https://github.com/elastic/integrations/blob/main/packages/logstash/_dev/build/docs/README.md[{ls} Integration] in {serverless-docs}/observability/what-is-observability-serverless[Elastic Observability] on {serverless-full}.


.Known issue for {ls} to {es-serverless}.

The logstash-output-elasticsearch `hosts` setting defaults to port :9200. Set the value to port :443 instead.
****


// The pass blocks here point to the correct repository for the edit links in the guide.

// Introduction

// Getting Started with Logstash
include::static/getting-started-with-logstash.asciidoc[]

// Advanced LS Pipelines
include::static/advanced-pipeline.asciidoc[]

// Processing Pipeline
include::static/life-of-an-event.asciidoc[]

// Elastic Common Schema (ECS)
include::static/ecs-compatibility.asciidoc[]

// Processing details
include::static/processing-info.asciidoc[]

// Logstash setup
include::static/setting-up-logstash.asciidoc[]

include::static/settings-file.asciidoc[]

include::static/keystore.asciidoc[]

include::static/running-logstash-command-line.asciidoc[]

include::static/running-logstash.asciidoc[]

include::static/docker.asciidoc[]

include::static/running-logstash-kubernetes.asciidoc[]

include::static/running-logstash-windows.asciidoc[]

include::static/logging.asciidoc[]

include::static/shutdown.asciidoc[]

// Upgrading Logstash
include::static/upgrading.asciidoc[]

// Configuring pipelines
include::static/pipeline-configuration.asciidoc[]

// Security
include::static/security/logstash.asciidoc[]

// Advanced Logstash Configuration
include::static/configuration-advanced.asciidoc[]

include::static/multiple-pipelines.asciidoc[]

include::static/pipeline-pipeline-config.asciidoc[]

include::static/reloading-config.asciidoc[]

include::static/managing-multiline-events.asciidoc[]

include::static/glob-support.asciidoc[]

include::static/field-reference.asciidoc[]

//The `field-reference.asciidoc` file (included above) contains a
//`role="exclude"` attribute to pull in the topic and make it linkable in the LS
//Ref, but not appear in the main TOC. The `exclude`attribute was carrying
//forward for all subsequent topics under the `configuration.asciidoc` heading.
//This include should remain after includes for all other topics under the
//`Advanced Logstash Configuration` heading.

// Logstash-to-Logstash
include::static/ls-ls-config.asciidoc[]

// Centralized configuration managements
include::static/config-management.asciidoc[]

include::static/management/configuring-centralized-pipelines.asciidoc[]

// EA Integrations to Logstash 
// (Planting near module content for now. Will likely move it up in info architecture.)
include::static/ea-integrations.asciidoc[]

// Working with Logstash Modules
include::static/modules.asciidoc[]

include::static/arcsight-module.asciidoc[]

include::static/netflow-module.asciidoc[]

include::static/azure-module.asciidoc[]

// Working with Filebeat Modules
include::static/filebeat-modules.asciidoc[]

// Working with Winlogbeat Modules
include::static/winlogbeat-modules.asciidoc[]

// Data resiliency
include::static/resiliency.asciidoc[]

include::static/mem-queue.asciidoc[]

include::static/persistent-queues.asciidoc[]

include::static/dead-letter-queues.asciidoc[]

// Transforming Data
include::static/transforming-data.asciidoc[]

// Deploying & Scaling
include::static/deploying.asciidoc[]

// GeoIP Database Management
include::static/geoip-database-management.asciidoc[]

// Troubleshooting performance
include::static/performance-checklist.asciidoc[]

// Monitoring 
include::static/monitoring/monitoring-ea-intro.asciidoc[] 

include::static/monitoring/monitoring-overview.asciidoc[]

include::static/monitoring/monitoring.asciidoc[]

// Working with Plugins
include::static/plugin-manager.asciidoc[]

// These files do their own pass blocks

include::{plugins-repo-dir}/plugins/integrations.asciidoc[]

include::{plugins-repo-dir}/plugins/inputs.asciidoc[]

include::{plugins-repo-dir}/plugins/outputs.asciidoc[]

include::{plugins-repo-dir}/plugins/filters.asciidoc[]

include::{plugins-repo-dir}/plugins/codecs.asciidoc[]

// FAQ and Troubleshooting
:edit_url!:
include::static/best-practice.asciidoc[]

include::static/config-details.asciidoc[]

include::static/troubleshoot/troubleshooting.asciidoc[]

// Contributing to Logstash
:edit_url:
include::static/contributing-to-logstash.asciidoc[]

include::static/input.asciidoc[]

include::static/codec.asciidoc[]

include::static/filter.asciidoc[]

include::static/output.asciidoc[]

// Logstash Community Maintainer Guide
include::static/maintainer-guide.asciidoc[]

// Plugin doc guidelines
include::static/doc-for-plugin.asciidoc[]

// Submitting a Plugin 
include::static/submitting-a-plugin.asciidoc[] 

include::static/listing-a-plugin.asciidoc[] 

include::static/contributing-patch.asciidoc[]

include::static/contribute-core.asciidoc[]

// Contributing to Logstash - JAVA EDITION
:edit_url:
include::static/contributing-java-plugin.asciidoc[]

// Breaking Changes
include::static/breaking-changes.asciidoc[]

// Release Notes
include::static/releasenotes.asciidoc[]

:edit_url:
include::static/redirects.asciidoc[]

:edit_url!:
