[SLO] Implement federated views

[kdelemme]

Issue and documentation: https://github.com/elastic/observability-dev/issues/3045

Extra:
Closes #180194

🍒 Summary

This PR implements federated view, allowing a list of remote clusters to be used to fetch remote SLOs. These remote SLOs are shown on the SLO listing page next to the local SLOs.

Remote SLOs are fetched using the current space: Remote SLOs created on a specific space will only be displayed on the SLOs listing page of the same space in the overview cluster.

The SLO models evolved quite a bit recently, and our types were not representative anymore of this new model. I've introduced an SLODefinition type that represents an SLO when we define it and store it in the repository. And a SLOWithSummaryData type (bad name because summary is not the only thing we have now) that includes things like instanceId, groupings, summary and remote data that we add to the SLO definition.

🥼 Testing

Create an edge-lite-oblt cluster

Run oblt-cli cluster create ccs --remote-cluster=edge-lite-oblt

Use the kibana.yml file provided by robots but add the server path:

server.basePath: '/kibana'
server.publicBaseUrl: 'http://localhost:5601/kibana'
elasticsearch.ignoreVersionMismatch: true

Then run kibana locally normally: yarn kbn bootstrap && yarn start

Generate data in your oblt cluster

Use the ES credentials from the robot notification:

node x-pack/scripts/data_forge.js --events-per-cycle 3 --lookback now-7d --dataset fake_stack --install-kibana-assets --kibana-url http://localhost:5601/kibana --elasticsearch-host ES_HOST --elasticsearch-username admin --elasticsearch-password PASSWORD  --kibana-username admin --kibana-password PASSWORD

Create SLOs on edge-lite-oblt cluster

Create some SLO on the edge-lite-oblt cluster directly.

📓 Scenario

💡 Use different SLI type

on remote cluster:

• Create SLO on remote under default space
• Create SLO on remote under non-default space
• Create SLO with groups on remote under default space
• Create SLO with groups on remote under non-default space

on local cluster:

• Create SLO under default space
• Create SLO under non-default space
• Create SLO with groups under default space
• Create SLO with groups under non-default space

Checklist

• Link to remote SLOs are space aware
• Edit remote SLO links to remote cluster
• Delete SLO links to remote cluster
• Clone SLO links to remote cluster
• Temporary remote SLOs are displayed correctly

to be continued

📺 Features

• ✅ Display remote SLOs in the local list page (space aware)
• ✅ Display remote SLO details from local cluster (space aware)
• ✅ Good/Bad events chart only works for newly created/updated slos
• ✅ Link to remote SLO cluster (space aware)
• ✅ Remote SLOs actions redirect to remote cluster: Edit, Manage Burn Rate, Clone, Delete
• ✅ All views handles Remote SLOs (card, table, compact table)
• ✅ Group by remote clusters
• ✅ Ability to configure used remote clusters vis settings page

🖼️ Screenshots

List Page	List Page	List Page	List Page	List Page

Remote SLO Details Page	Remote SLO with Group Details Page

Settings Page

Follow-ups

• [SLO] Refactor useSloActions() to reuse it in the compact_view action #180716
• [SLO] Centralize slo remote logic #180614
• [SLO] SummaryClient and SLOWithSummary naming #180592

📋 Tasks to wrap up

• For “View Events” feature, we should send the discover link to the remote OR disable it.
• Handle the remote of a remote situation with get_preview_data (Events chart)
• Hide the 0 label on the alerts tab for the remote and disable the tab with a tooltip.
• The action menu on the compact view isn’t following the same logic as the action menus on the card and expanded list view.
• For Tags and Status on Remotes, they don’t show up in the tag and status filter bar
• Fix summary document without latest change
• Ability to create burn rate rules on a federated SLO
• Kibana remote URL is not working with space other than "default"
• Ability to add a Federated SLO to a Dashboard
• The banner below should span the page, this is because the column of the actions should only be applied to the title content and not the banner.
  

[apmmachine]

🤖 GitHub comments

Expand to view the GitHub comments

Just comment with:

• /oblt-deploy : Deploy a Kibana instance using the Observability test environments.
• /oblt-deploy-serverless : Deploy a serverless Kibana instance using the Observability test environments.
• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)

[elasticmachine]

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

[dominiqueclarke]

@dominiqueclarke

The view events feature does not work for histogram metric indicator. This is an SLO on the kevin space. I tested this for a remote SLO with custom kql indicator on default space, so it's unclear to me if this is a histogram metric issue or a space issue.

This issue is coming from the local kibana space that does not have the existing dataview with which the remote SLO was created. I guess the View Events link should redirect to the remote Kibana discover page instead. What do you think?

Yeah I think we should redirect to the remote ideally.

[dominiqueclarke]

LGTM

[simianhacker]

I created a spaced called Kevin, then tried to save the settings and I ended up with this error:

[kdelemme]

@simianhacker Fixed d8bf376

[simianhacker]

Thanks for the fixes!

[shahzad31]

LGTM 🎆

Great work !!

[kibana-ci]

💚 Build Succeeded

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• Commit: ae511f9
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Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
slo	706	716	+10

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
@kbn/core-saved-objects-base-server-internal	181	182	+1
@kbn/slo-schema	165	170	+5
total			+6

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
slo	697.9KB	713.1KB	+15.2KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
observability	150.3KB	150.4KB	+85.0B
slo	21.8KB	21.9KB	+105.0B
total			+190.0B

Unknown metric groups

API count

id	before	after	diff
@kbn/core-saved-objects-base-server-internal	224	225	+1
@kbn/slo-schema	165	170	+5
total			+6

History

• 💚 Build #203842 succeeded d8bf376
• 💚 Build #203773 succeeded 698ad25
• 💛 Build #203670 was flaky 1ff8e60
• 💔 Build #203368 failed 38fd514
• 💚 Build #203227 succeeded 6992df1
• 💔 Build #203059 failed ed02a2e

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @simianhacker