[APM] Error when viewing the Infrastructure tab without access to Infrastructure app

[crespocarlos]

Summary

If a user does not have Infrastructure privilege or elasticsearch privilege for related indices they cannot access Infrastructure data, resulting in an error.

Steps to reproduce

• Create a user with elasticsearch index privileges:
  • indices: metrics-apm,apm,traces-apm,logs-apm
  • privileges: 'read', 'view_index_metadata'
  • and kibana privileges: APM and User Experience
• Navigate to APM Service Overview
• Click on the Infrastructure tab (I don't think we have a synthtrace scenario to make this tab work. I forced the code to run a path that would try to fetch infra data)

Possible solution

We could show the Infrastructure tab only if application.uiCapabilities.infrastructure.show is true or display a message saying that the user doesn't have permission if the same condition is not met, eg:

Because roles could also be configured such that users could have permission to Infrastructure but not to read Infrastructure indices, we also need to check on the server side, before running the query, whether the current user has permission to read from Infrastructure indices (see an example here)

[elasticmachine]

Pinging @elastic/obs-ux-infra_services-team (Team:obs-ux-infra_services)

[crespocarlos]

cc @roshan-elastic