[CC-26984] metric-export: add resource for prometheus integration (#200)

* [CC-26984] metric-export: add resource for prometheus integration

This change introduces resource MetricExportPrometheusConfig which manages
prometheus metric export integration in gcp and aws cloud providers.

---------

Co-authored-by: Arjun Mahishi <[email protected]>

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.7.0] - 2024-05-17
+
+## Added
+
+- New `cockroach_metric_export_prometheus_config` resource allows user to configure prometheus metric
+  export integration in AWS and GCP cloud providers.
+
 ## [1.6.0] - 2024-05-02
 
 ## Added

docs/resources/metric_export_prometheus_config.md

@@ -0,0 +1,35 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "cockroach_metric_export_prometheus_config Resource - terraform-provider-cockroach"
+subcategory: ""
+description: |-
+  Prometheus metric export configuration for a cluster. This is only available for dedicated clusters with AWS and GCP cloud providers.
+---
+
+# cockroach_metric_export_prometheus_config (Resource)
+
+Prometheus metric export configuration for a cluster. This is only available for dedicated clusters with AWS and GCP cloud providers.
+
+## Example Usage
+
+```terraform
+variable "cluster_id" {
+  type = string
+}
+
+resource "cockroach_metric_export_prometheus_config" "example" {
+  id = var.cluster_id
+}
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `id` (String) Cluster ID.
+
+### Read-Only
+
+- `status` (String) The current state of the metric export configuration.  Possible values are: [`NOT_DEPLOYED` `DISABLING` `ENABLING` `ENABLED` `ERROR`]
+- `targets` (Map of String) Represents prometheus scrape endpoint for each region. You can fetch endpoints either by executing `terraform state show {resource}` or by enabling terraform logs.

examples/resources/cockroach_metric_export_prometheus_config/resource.tf

@@ -0,0 +1,7 @@
+variable "cluster_id" {
+  type = string
+}
+
+resource "cockroach_metric_export_prometheus_config" "example" {
+  id = var.cluster_id
+}

examples/workflows/cockroach_metric_export/aws/main.tf

@@ -169,4 +169,8 @@ resource "cockroach_metric_export_datadog_config" "example" {
   id      = cockroach_cluster.example.id
   site    = var.datadog_site
   api_key = var.datadog_api_key
+}
+
+resource "cockroach_metric_export_prometheus_config" "example" {
+  id = cockroach_cluster.example.id
 }

examples/workflows/cockroach_metric_export/gcp/main.tf

@@ -70,3 +70,7 @@ resource "cockroach_metric_export_datadog_config" "example" {
   site    = var.datadog_site
   api_key = var.datadog_api_key
 }
+
+resource "cockroach_metric_export_prometheus_config" "example" {
+  id = cockroach_cluster.example.id
+}