[O11y][HAProxy] Migrate visualizations to lens

[kush-elastic]

What does this PR do?

• Migrate stat data-stream visualizations to lens for HAProxy integration package

• Statistics for HAProxy Lens migration:

HAProxy Dashboards	Before Migration		After Migration
	Lens	Visualization	Lens	Visualization
[Metrics HAProxy] HTTP backend	0	8	8	0
[Metrics HAProxy] Overview	0	4	4	0
[Metrics HAProxy] Frontend	0	2	2	0
[Metrics HAProxy] HTTP frontend	0	3	3	0
[Metrics HAProxy] HTTP server	0	6	6	0
[Metrics HAProxy] Backend	0	6	6	0
	0	29	29	0

Checklist

• I have added an entry to my package's changelog.yml file.
• I have verified that panels are populated with data.
• I have verified that panels are not distorted after being migrated to lens.
• I have updated screenshots of dashboard.
• I have verified that data count are matching and panel aggregations are same as before.

Author's Checklist

• Migrated panels should be removed from visualization folder.
• Migrated visualizations are populating in current Kibana version 8.8.0 itself.

Related issues

• Relates [O11y][HAProxy] Lens Migration #5584

Screenshots

Before Migration Screenshots:

HTTP Backend

Overview

HTTP Server

Backend

Frontend

HTTP Frontend

[elasticmachine]

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Build stats

• Start Time: 2023-11-06T09:16:08.712+0000

• Duration: 15 min 29 sec

Test stats 🧪

Test	Results
Failed	0
Passed	22
Skipped	0
Total	22

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (1/1)	💚
Classes	100.0% (1/1)	💚
Methods	90.476% (19/21)	👎 -9.524
Lines	97.238% (176/181)	👍 3.847
Conditionals	100.0% (0/0)	💚

[milan-elastic]

LGTM!

[devamanv]

@kush-elastic I see that there panels in the dashboards that end with [Metrics HAProxy], even when we already have [Metrics HAProxy] in the dashboard name like [Metrics HAProxy] Backend. I understand you are just using the names before the migration, but can we change the panel names to remove the [ ] part? Or is there a convention that we are trying to follow here?

[kush-elastic]

@kush-elastic I see that there panels in the dashboards that end with [Metrics HAProxy], even when we already have [Metrics HAProxy] in the dashboard name like [Metrics HAProxy] Backend. I understand you are just using the names before the migration, but can we change the panel names to remove the [ ] part? Or is there a convention that we are trying to follow here?

As of now, we have only migrated the panels to the lens keeping the naming of visualizations the same as before. It's a good thing to remove the repetition of suffixes in visualization titles. Once this PR is merged, I'll create a separate issue to track the removal of suffixes from all dashboards.

[kush-elastic]

@devamanv can you help me re-review this?

[devamanv]

LGTM

[elasticmachine]

Package haproxy - 1.11.0 containing this change is available at https://epr.elastic.co/search?package=haproxy