…er. (elastic#24486)

* Add the ability to provide custom CA's for Elastic Agent docker.

* Add changelog.

* Add syntax for multiple selector logging

* Update libbeat/docs/loggingconfig.asciidoc

Co-authored-by: EamonnTP <[email protected]>

Co-authored-by: EamonnTP <[email protected]>

Co-authored-by: AndyHunt66 <[email protected]>

…#24423)

* refactor use of system.hostfs to fix cgroup metrics

* add changelog

* remove comment

* add cfgwarn

* move changelog

* shift around CLI config location and rep warning

* add comment about system.hostfs usage

* update docs

* capitalization

* fix grammar, add conditional

* change docs phrasing

… Kibana. (elastic#24489)

* Add verification check when updating communication to Kibana.

* Add changelog.

* Add const.

[Ingest Manager] Move logging defaults to agent (elastic#24535)

…24543)

The Tomcat module is for ingesting access logs, not Catalina or localhost logs.

* auditbeat btmp offset check

Add check that saved offset is not larger than the current file size
to prevent seeking past the end of file

…c#24404)

Fixes elastic#24403.

With the changes to the heartbeat config syntax in 7.12 the `source`
field is now required. Our config validation code didn't actually check
for this field's presence, which caused an NPE.

This PR adds a validation checking for that config's presence. It also
adds tests for the validation code for config sub-fields. There were no
defects found in the validations for source.inline, or source.browser,
but a few tests were missing.

Instead of the panic seen in elastic#24403 users will now get the error seen
below.

```
2021-03-05T15:41:40.146-0600	ERROR	instance/beat.go:952	Exiting: could not create monitor: job err could not parse suite config: config 'source' must be specified for this monitor, if upgrading from a previous experimental version please see our new config docs accessing 'heartbeat.monitors.0' (source:'sample-synthetics-config/heartbeat.yml')
Exiting: could not create monitor: job err could not parse suite config: config 'source' must be specified for this monitor, if upgrading from a previous experimental version please see our new config docs accessing 'heartbeat.monitors.0' (source:'sample-synthetics-config/heartbeat.yml')
```

Fix default scope in add_nomad_metadata. It is set to local, but
it should be node. Fix also error message that showed that local
is a valid value.

* added dashboards & docs

* ran mage fmt update

We will be delegating the version calculation to the e2e tests, using
target branch values as defaults