[Request]: Update Containers docs for Infrastructure

[roshan-elastic]

Description

We're going to be updating our container template to (a) use the new template we are using for hosts (b) making 'docker containers' support all containers.

Initially, this means we need to:

1. Update the metrics definitions...we don't know what these are yet

2. Update the inventory docs to reflect these are 'containers' (not just 'docker containers')

Old view of containers

What it will start to look like (showing 'hosts' for now)

Notes:

• This is WIP so we'll let you know when we have our first customer-facing release
• There will be future releases which start to incorporate 'containers' into other views (e.g. from a host or a service) but that's out of scope for now

Resources

• https://github.com/elastic/observability-dev/issues/3313

Which documentation set does this change impact?

Stateful and Serverless

Feature differences

None

What release is this request related to?

TBC (likely 8.15)

Collaboration model

I'm happy to help!

Point of contact.

Main contact: @roshan-elastic + @jennypavlova

Stakeholders:
@smith

[roshan-elastic]

@colleenmcginnis FYI

[bmorelli25]

Thanks for opening this issue. Marking as blocked and adding to our backlog until we know those Docker metric definitions.