[Logs] Add logs explorer docs (#3425)

docs/en/observability/explore-logs.asciidoc

@@ -0,0 +1,51 @@
+[[explore-logs]]
+= Logs Explorer
+
+beta[]
+
+With **Logs Explorer**, you can quickly search and filter your log data, get information about the structure of log fields, and display your findings in a visualization.
+You can also customize and save your searches and place them on a dashboard.
+Instead of having to log into different servers, change directories, and view individual files, all your logs are available in a single view.
+
+From the {observability} navigation menu, click **Explorer** under the **Logs** heading to open Logs Explorer.
+
+[role="screenshot"]
+image::images/log-explorer.png[Screen capture of the Logs Explorer]
+
+[discrete]
+[[find-your-logs]]
+== Find your logs
+
+By default, Logs Explorer shows all of your logs.
+If you need to focus on logs from a specific integrations, select the integration from the logs menu:
+
+[role="screenshot"]
+image::images/log-menu.png[Screen capture of log menu]
+
+Once you have the logs you want to focus on displayed, you can drill down further to find the information you need.
+For more on filtering your data in Logs Explorer, refer to <<logs-filter-logs-explorer>>.
+
+[discrete]
+[[update-the-documents-table]]
+== Update the documents table
+
+The documents table in Logs Explorer functions similarly to the table in Discover.
+You can add fields, order table columns, sort fields, and update the row height in the same way you would in Discover.
+
+Refer to the {kibana-ref}/discover.html[Discover] documentation for more information.
+
+[discrete]
+[[view-log-details]]
+== View log details
+
+Click the expand icon (image:images/expand-icon.png[icon to open log details]) to get an in-depth look at an individual log file.
+
+These details provide immediate feedback and context for what's happening and where it's happening for each log.
+From here, you can quickly debug errors and investigate the services where errors have occurred.
+
+The following actions help you filter and focus on specific fields in the log details:
+
+* **Filter for value (image:images/plusInCircle.png[filter for value icon]):** Show logs that contain the specific field value.
+* **Filter out value (image:images/minusInCircle.png[filter out value icon]):** Show logs that do *not* contain the specific field value.
+* **Filter for field present (image:images/filter.png[filter for present icon]):** Show logs that contain the specific field.
+* **Toggle column in table (image:images/listAdd.png[toggle column in table icon]):** Add or remove a column for the field to the main Logs Explorer table.

docs/en/observability/index.asciidoc

@@ -49,6 +49,8 @@ include::logs-filter.asciidoc[leveloffset=+2]
 
 include::monitor-logs.asciidoc[leveloffset=+2]
 
+include::explore-logs.asciidoc[leveloffset=+3]
+
 include::tail-logs.asciidoc[leveloffset=+3]
 
 include::categorize-logs.asciidoc[leveloffset=+3]

docs/en/observability/monitor-logs.asciidoc

@@ -9,12 +9,16 @@ Using {agent} integrations, you can ingest logs from Kubernetes, MySQL, and many
 more data sources. Log events are indexed into {es} and are sorted from older to newer,
 with infinite scrolling in both directions.
 
-There is live streaming of logs, filtering using auto-complete, and a logs histogram
+Logs Explorer allows you to quickly search and filter your log data, get information about the structure of log fields, and display your findings in a visualization.
+
+[role="screenshot"]
+image::images/log-explorer.png[Screen capture of the Logs Explorer]
+
+Refer to the <<explore-logs>> documentation for more on using Logs Explorer.
+
+There is also live streaming of logs, filtering using auto-complete, and a logs histogram
 for quick navigation. You can also use {ml} to detect specific log
 anomalies automatically and categorize log messages to quickly identify patterns in your
 log events.
 
-[role="screenshot"]
-image::images/logs-app.png[{logs-app} in {kib}]
-
 To view the {logs-app}, go to *{observability} > Logs*.