kibana/docs/apm/logs.asciidoc
Brandon Morelli 4ed60697e9
[APM] Documentation updates (#160568)
### Summary

This PR makes a handful of updates to the APM app documentation:

- [x] **Alerts tab, workflow, and grouping**
- Rewrote most of our [alerting
documentation](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/apm-alerts.html#apm-alert-view-active)
to explain the new granularity level of alerts, address new alert names,
and explain the different ways to view active alerts.
- Updated the
[Services](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/services.html)
documentation to describe the alert badge and link to alerting docs.
  - _Closes https://github.com/elastic/observability-docs/issues/2887_
  - _Closes https://github.com/elastic/observability-docs/issues/2888_
  - _Closes https://github.com/elastic/observability-docs/issues/2878_
- [x] **Infrastructure tab**
- Added a new [top-level
page](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/infrastructure.html)
explaining what this page is useful for.
  - _Closes https://github.com/elastic/observability-docs/issues/2892_
- [x] **Log views and correlation**
- Added a new [top-level page
](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/logs.html)that
links to our log correlation docs.
- Updated our [transaction
documentation](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/transactions.html#transaction-trace-sample)
with new information and a link to our log correlation docs.
  - _Closes https://github.com/elastic/observability-docs/issues/2891_
- [x] **New AWS Lambda metrics**
- Most of the new charts have tooltips explaining what the charts do. I
updated the screenshot and added some additional information to the
[overview](https://kibana_160568.docs-preview.app.elstc.co/guide/en/kibana/master/apm-lambda.html)
to highlight some of the new features of this page.
  - _Closes https://github.com/elastic/observability-docs/issues/2890_
- [x] **New screenshots**
- I updated any screenshots I noticed were outdated while working on the
above content. Screenshot updates are not necessarily related to the
changes described above.
2023-06-30 11:02:58 -07:00

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[role="xpack"]
[[logs]]
=== Logs
The *Logs* tab shows contextual logs for the selected service.
// tag::log-overview[]
Logs provide detailed information about specific events, and are crucial to successfully debugging slow or erroneous transactions.
If you've correlated your application's logs and traces, you never have to search for relevant data; it's already available to you. Viewing log and trace data together allows you to quickly diagnose and solve problems.
To learn how to correlate your logs with your instrumented services,
see {observability-guide}/application-logs.html[log correlation]
// end::log-overview[]
[role="screenshot"]
image::apm/images/logs.png[Example view of the Logs tab in APM app in Kibana]
TIP: Logs displayed on this page are filtered on `service.name`