Fix gaps in the Prometheus integration (technical preview)

[tetianakravchenko]

…s; collector: add leader election, remove default value for ssl; query: add leader election

Signed-off-by: Tetiana Kravchenko tetiana.kravchenko@elastic.co

What does this PR do?

Those changes are the result of evaluation issue, for more details: #3489, #3487, #3488

remote_write datastream:

• hide some configuration settings

collectordatastream:

• add leader election
• remove default value for ssl

query datastream:

• add leader election

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

How to test this PR locally

Related issues

• Relates [Prometheus Integration] Evaluate metrics extraction using a PromQ with k8s #3489, [Prometheus Integration] Evaluate Prometheus endpoint Metrics extraction with k8s #3487, [Prometheus Integration] Evaluate metrics extraction from Prometheus server using remote_write option with k8s  #3488

Screenshots

Collector:

1. added leader election setting as an advanced option
2. removed default values for ssl Certificate Authorities

Query:

1. added leader election setting as an advanced option

remote_write:

1. move some setting to advanced options:

with advanced options:

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• Start Time: 2022-07-07T11:00:57.147+0000

• Duration: 13 min 12 sec

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Test	Results
Failed	0
Passed	15
Skipped	0
Total	15

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚 3.171
Classes	100.0% (0/0)	💚 3.171
Methods	66.667% (6/9)	👎 -22.888
Lines	100.0% (0/0)	💚 8.916
Conditionals	100.0% (0/0)	💚

[gizas]

Can we have many cert_authorities? Just wondering

[tetianakravchenko]

yes

it defined by multi: true setting in manifest