# Monitoring module 
This module deploys the default cloudwatch metric monitoring

## Notes
Terraform lifecycle ignores tags to speed up terraform subsequent update. Cloudwatch alarm tags cannot be read on aws console anyway.
AWS provider 4.47.0 or above is needed for datasource aws_db_instances (https://github.com/hashicorp/terraform-provider-aws/blob/main/CHANGELOG.md)

## Example
```terraform
module "rds-instances" {
  source        = "../../modules/util/resource-list"
  resource-type = "rds"
}

module "rds-monitoring" {
  # for_each = toset(var.rds-instance-ids)
  cw-alarm-prefix            = local.cw-alarm-prefix
  for_each                   = module.rds-instances.result-set
  source                     = "../../modules/ManagementGovernance/Monitoring.RDS"
  default-tags               = local.default-tags
  rds-instance-name          = each.value
  threshold-CpuUtilization   = 90
  threshold-FreeableMemory   = 512 * 1024 * 1024
  threshold-FreeStorageSpace = 5 * 1024 * 1024 * 1024
  threshold-DiskQueueDepth   = 30
  threshold-ReadLatency      = 0.03
  threshold-WriteLatency     = 0.03
  actions-enabled            = var.actions-enabled
  sns-targets = var.sns-targets
}
```