[APM] UI changes for AWS Lambda support

[AlexanderWert]

With elastic/apm-server#5753 and elastic/apm#352 gathering APM data for AWS Lambda services will be supported.

To have appropriate support in the APM UI, we need a few UI changes:

• https://github.com/elastic/observability-design/issues/76
  • [APM] Adding lambda icon #111834
• Based on [APM] Include service.runtime to derive APM service icons  #105917, use the service.runtime.name to derive the primary service icon for AWS Lambda services (instead of the language icon based on agent.name) shown in the service inventory, service overview, service map.
  • Show Lambda icon in all places where only one icon is displayed (service map, service inventory)
  • Show Lambda icon + agent language icon (e.g. Java, Node.js, etc.) + cloud icon (e.g. AWS) in the service overview header, with the following information:
    • Language icon + cloud icon: show same information in the pop-up as it is already the case with those icons
    • Lambda icon:
      • Function Name: from field service.name
      • Function ID: from field service.id
      • Trigger Type: from field faas.trigger.type
• Hide the metrics tab for AWS Lambda services
• Hide the instances chart and table on the service overview We actually can use service.node.name as for any other service. So no need to hide the instance views.
• Add beta badge to cloud details
• AWS Lambda transactions will have an additional boolean flag indicating a potential cold start of a Lambda. Include a badge on the corresponding transaction row in the waterfall and in the transaction flyout to indicate a cold start. Example:
  

cc @formgeist

[elasticmachine]

Pinging @elastic/apm-ui (Team:apm)

[formgeist]

One suggestion would be to move the cold start badge to the end of the description as we do for the other badges e.g. async. Not sure if there was any meaning behind the yellow badge color?

Added a link to the design issue for adding the AWS Lambda icon in the description.

[AlexanderWert]

Not sure if there was any meaning behind the yellow badge color?
Was a meant as a sort of "warning" that the corresponding transaction was a cold start. (But I'm fine with any other color as well)

[formgeist]

Was a meant as a sort of "warning" that the corresponding transaction was a cold start. (But I'm fine with any other color as well)

OK, that makes sense. I think we should keep it as warning.

[formgeist]

#111834 merged so the Lambda icon is now available to use.

[gbamparop]

As discussed with @AlexanderWert and @dannycroft agent icon is still to be displayed in all places where only one icon is present.