Consider adding local-exec example for NerdGraph automation to reduce manual step

[pragmaticivan]

Summary

I might understand that we might not want to automate that by default but would be nice to have a local-exec example.

Desired Behavior

Ex of local-exec (run only one time) for connecting with nerd-graph

[pragmaticivan]

NVM local exec. https://registry.terraform.io/providers/newrelic/newrelic/latest/docs/resources/cloud_aws_link_account feels more apropriate.

[pragmaticivan]

It was simple as:

resource "newrelic_cloud_aws_link_account" "aws_link" {
  account_id             = var.newrelic_trusted_account_id
  arn                    = module.cloudwatch_metrics_forwarder_stack.newrelic-one-external-role-arn
  metric_collection_mode = "PUSH"
  name                   = var.aws_account_name
}