Add state field for connection metricset from RabbitMQ module (#13697) #WIP

[amandahla]

Add state field for connectino metricset. Still needs to test in real environment.

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[exekias]

Thank you for opening this @amandahla! Can you please update fields.yml for connection metricset to accomodate this new field?

[andresrc]

Fixes #13697

[odacremolbap]

Hi @amandahla

this looks good, but I noticed some indentation at golden/JSON files that lead me to think you are manually editing them.

Would you mind to:

cd GOPATH/src/github.com/elastic/beats/metricbeat/module/rabbitmq/connection
go test  ./... -generate

that command should generate both JSON files with correct indentation.

[amandahla]

@odacremolbap done! :-)

[odacremolbap]

thanks a lot @amandahla
please, proceed to merge