[Fleet] Install the Elastic Agent package during setup

[nchaulet]

Description

As we install the system package during the ingest management setup we should install the elastic_agent package.

The only difference this package should not be added to the default agent policy.

[elasticmachine]

Pinging @elastic/ingest-management (Team:Ingest Management)

[blakerouse]

@nchaulet Why not default?

[nchaulet]

@blakerouse Right now there is no value to add the package to an agent policy, the package only provide a dahsboard but the fact that agent collect logs and metrics is defined by settings on the agent policy not the package (this could change there is a discussion on that currently)

[ravikesarwani]

Will the package have a default ILM policy? The collected Agent logs and metrics should be kept by default maybe for 7 days. User, of course can adjust this based on specific needs.

[nchaulet]

The package currently do not have a default ILM policy it's something we can improve

[ph]

@ravikesarwani For the ILM policy can you create a specific issue with the requirements?

[ravikesarwani]

Created 91201.
Let me know if there are any questions?

[dikshachauhan-qasource]

Hi @EricDavisX

Test cases for above changes is located at C76941

Thanks
QAS