[O11y][Vsphere] Lens Migration

[rajvi-patel-22]

Manually migrate Vsphere visualizations to lens in current Kibana version 8.7.0 itself.

Preparation of data for testing

• Use sample_event.json / setup live instance using docker / mock data using mock server to populate dashboards

Migration stats

VSphere dashboard	Before Migration		After Migration
	Lens	Visualization	Lens	Visualization
[Metrics VSphere] Hosts Overview	0	7	7	0
[Metrics VSphere] VMs overview	0	5	5	0
	0	12	12	0

Dashboard : [Metrics VSphere] Hosts Overview

• Migrate 7 visualizations to the lens.
  • [O11y][Vsphere] Migrate Hosts Overview dashboard visualizations to lens in kibana 8.7.0 #5810

Dashboard : [Metrics VSphere] VMs overview

• Migrate 5 visualizations to the lens.
  • [O11y][Vsphere] Migrate VMs Overview dashboard visualizations to lens in kibana 8.7.0  #5811

Verification and Validation

• Verification of functionality remains the same after migration in Kibana
• Verification of data count of after-migrated visualization with before-migrated visualization in Kibana
• Verification of Dashboard are not distorted in supported Kibana version (8.7.0)

Issues Identified

• Gauge chart (arc) type is not available in lens. In Lens, only horizontal and vertical gauge chart are supported.
  [Lens] Support bullet/gauge chart kibana#89859
  Impact : [ Severity : Critical, Workaround : Yes (Convert the panel into either horizontal/vertical gauge chart or metric visualization)]
• [O11y][Vsphere] Change format of value to bytes #5820

[rajvi-patel-22]

@agithomas @SubhrataK

There is one issue in Kibana v8.5.0. The new metric visualization doesn't allow to add a panel title which is going to be fixed in Kibana 8.7+. Because of this issue, the panel title of new metric visualization is not shown in v8.5.0

GitHub Issue: elastic/kibana#148563

Below is the screenshot of panels before and after migration. The panel title Host top RAM util [Metrics VSphere], Host top CPU util [Metrics VSphere] and Top Datastore Used [Metrics VSphere] are not visible after migration. However, it will be visible in the future version once this issue will be merged. (Tested on snapshot-8.7.0 and panel titles are visible)

Before migration:

After migration:

Should we keep minimum Kibana version to 8.5.0 or should we upgrade it to 8.7.0?

[agithomas]

@lalit-satapathy , @ishleenk17 , are there any concerns?

[ishleenk17]

The new metric visualization doesn't allow to add a panel title which is going to be fixed in Kibana 8.7+

@rajvi-elastic : Having panel names is important for the user to understand what the panel is about. So it should be present.
I suppose this would be the issue with multiple integrations. How are we handling there?

Also, for the issue identified "Support gauge chart", do we have ETA on when this will be resolved ?

[rajvi-patel-22]

@ishleenk17, in other visualizations, title is same as the label (as you can see in the below screenshot). And as per our best practices, we are disabling the title in metric visualizations if the title and labels are same.

The issue that you are talking about has been closed already. And as discussed with @SubhrataK we are migrating gauge visualizations to metric or horizontal/vertical gauge chart.

[ishleenk17]

@rajvi-elastic, We can update the kibana version to 8.7.

[rajvi-patel-22]

@rajvi-elastic, We can update the kibana version to 8.7.

As discussed with @ishleenk17, this issue has been fixed in 8.7.0 Kibana version. Hence, We'll keep minimum Kibana version to 8.7.0 .

[agithomas]

@rajvi-elastic , the PR link seem to be broken in the description. Please update.

[rajvi-patel-22]

@rajvi-elastic , the PR link seem to be broken in the description. Please update.

@agithomas I have updated the links.

[rajvi-patel-22]

PR is approved and merged, hence closing this issue:
#5810
#5811