Migrate PostgreSQL modules

[kvch]

In the list of Integrations:

Overview of the integration:

Part of fields and example event in description:

Configuration of logging:

Configuration of metrics:

Postgresql logs overview:

Postgresql metrics overview:

[elasticmachine]

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• Build Cause: [Branch indexing]

• Start Time: 2020-06-27T17:24:23.865+0000

• Duration: 5 min 1 sec

[mtojek]

@kvch

Thank for your contribution. Is this still a draft or it's ready to be reviewed? Feel free to add label for the team.

It would great to see some screenshots from Kibana (PR description) if this integration is running. We used to take screenshots presenting configuration options and working dashboards.

[mtojek]

Based on the posted screenshots of forms, it's in the really good shape! Did you try with dashboards, @kvch ?

[kvch]

@mtojek I've just added all required screenshots. This PR is ready for review.

[mtojek]

Just a couple of suggestions here. I think that once they're solved, we can merge this PR.

Also, feel free to jump into other PRs. Your integration is in a good shape, you can share opinion on others work. Thanks for the contribution, Noemi :)

[mtojek]

I'm not quite sure about the SIGSEGV issue on the CI side. Could you please rerun tests?

[2020-06-25T17:33:55.863Z] [signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x5cfe05]

[2020-06-25T17:33:55.863Z] 

[2020-06-25T17:33:55.863Z] goroutine 1 [running]:

[2020-06-25T17:33:55.863Z] main.init.0()

[2020-06-25T17:33:55.863Z] 	/go/src/golang.org/x/tools/cmd/goimports/goimports.go:51 +0x85

[kvch]

@mtojek I've addressed your remaining concerns. Also, the CI issue seems transient. It is no longer a problem.

[mtojek]

Thanks for all adjustments. Ship it!