[Infra UI] Services overview page

[skh]

Add a page to show an overview of services. It should contain

• query bar
• datetime range picker
• list of services reporting data, within the given datetime range and with the given filter query applied, if any

[elasticmachine]

Pinging @elastic/infrastructure-ui

[makwarth]

@skh we should discuss design of this feature, and how it (hopefully) fits with the proposed layout changes in #27916

[makwarth]

Had a chat with @skh about this feature.

• The primary purpose of this feature is service discovery.
• It likely makes sense to have "Services" as a top level feature. (New tab here)
• As a first iteration, showing a full list of services running on the infrastructure with respective links to Kibana dashboards might be sufficient. (No metrics)
• The services list should have basic filtering via the query bar (host name, container name, service name, etc.)
• We'll need to check if the dashboards exists before linking off. Hopefully it's possible to pass filter params as part of the link. Need to investigate.

Thoughts @ruflin @exekias @roncohen ?

[ruflin]

Overall LGTM. +1 on a new tab.

Agree that links to dashboards are sufficient to get started. What I would like to add here is the link can be edited. There will be services which don't have a dashboard yet and the user can link his own or even added more dashboards for a specific service.

[exekias]

Thanks @makwarth, that sounds good to me

[makwarth]

@ruflin @exekias Thanks for the input. I'm wondering if we should pause for a bit and wait for users to request a service discovery feature. Do you have input on the importance of this feature? I don't think I've seen explicit requests for it, so I want to make sure we fully understand the problem we're trying so solve here before diving into implementation of a new top level feature. Thoughts?

[ruflin]

I personally think we should at least build the foundation, meaning the links to the dashboards. Right now it's tricky to find the right links from the Infra UI to each single dashboard for each service. We put quite a bit of effort in all the modules and having this service tab with links to the dashboards will make them much more accessible and visible.

[makwarth]

We discussed this feature today and decided the following approach: #31405
This feature will enable users to do service discovery and view metrics of nodes with certain services. Closing this issue.