[O11y][PHP-FPM] Lens Migration

[harnish-elastic]

Manually migrate PHP-FPM visualizations to lens in kibana version 8.4.0.

Preparation of data for testing

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

Migration stats

PHP-FPM Dashboards	Before Migration		After Migration
	Lens	Visualization	Lens	Visualization
[Metrics PHP-FPM] Pool	7	0	7	0
[Metrics PHP-FPM] Process	3	1	4	0
	10	1	11	0

Data stream : Process

• Migrate 1 visualizations to the lens
  • [O11y][PHP-FPM] Lens migration for visualizations to kibana version 8.4.0  #5521

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 (8.4.0)

Issues Identified

• Show value in legend feature does not show default values in legend. It will only appear in legend when user hover over the chart.
  • [Lens] Area/line charts report last bucket empty kibana#153079

[harnish-elastic]

PR is approved and merged, hence closing this issue. #5521

[agithomas]

@harnish-elastic , can you please confirm if the migration of panels done that are impacted the problem of last bucket empty issue mentioned in the PR? If not, please revise the summary chart.

[harnish-elastic]

@harnish-elastic , can you please confirm if the migration of panels done that are impacted the problem of last bucket empty issue mentioned in the PR? If not, please revise the summary chart.

@agithomas, Yes the migration of panels done that are impacted the problem of last bucket empty issue mentioned in the PR.