# CLOUD GCP CLOUD-SQL MYSQL DataDog monitors

## How to use this module

```
module "datadog-monitors-cloud-gcp-cloud-sql-mysql" {
  source = "git::ssh://git@git.fr.clara.net/claranet/pt-monitoring/projects/datadog/terraform/monitors.git//cloud/gcp/cloud-sql/mysql?ref={revision}"

  environment = "${var.environment}"
  message     = "${module.datadog-message-alerting.alerting-message}"
}

```

## Purpose

Creates DataDog monitors with the following checks:

- Cloud SQL MySQL Replication Lag

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|:----:|:-----:|:-----:|
| environment | Architecture environment | string | n/a | yes |
| evaluation\_delay | Delay in seconds for the metric evaluation | string | `"900"` | no |
| filter\_tags | Tags used for filtering | string | `"*"` | no |
| message | Message sent when a monitor is triggered | string | n/a | yes |
| new\_host\_delay | Delay in seconds for the new host evaluation | string | `"300"` | no |
| prefix\_slug | Prefix string to prepend between brackets on every monitors names | string | `""` | no |
| replication\_lag\_enabled | Flag to enable GCP Cloud SQL Replication Lag monitor | string | `"true"` | no |
| replication\_lag\_extra\_tags | Extra tags for GCP Cloud SQL SQL Replication monitor | list | `[]` | no |
| replication\_lag\_message | Custom message for the Replication Lag monitor | string | `""` | no |
| replication\_lag\_silenced | Groups to mute for GCP Cloud SQL Replication Lag monitor | map | `{}` | no |
| replication\_lag\_threshold\_critical | Seconds behind the master (critical threshold) | string | `"180"` | no |
| replication\_lag\_threshold\_warning | Seconds behind the master (warning threshold) | string | `"90"` | no |
| replication\_lag\_time\_aggregator | Time aggregator for the Replication Lag monitor | string | `"min"` | no |
| replication\_lag\_timeframe | Timeframe for the Replication Lag monitor | string | `"last_10m"` | no |

## Outputs

| Name | Description |
|------|-------------|
| replication\_lag\_id | id for monitor replication_lag |

## Related documentation

* [GCP Metrics for CloudSQL](https://cloud.google.com/monitoring/api/metrics_gcp#gcp-cloudsql)
* [Datadog Useful monitors for GCP CloudSQL](https://www.datadoghq.com/blog/monitor-google-cloud-sql/)
* [Max connections depends on the type of the instance](https://cloud.google.com/sql/docs/quotas#fixed-limits)
* [Monitoring Replication Lag](https://cloud.google.com/sql/docs/mysql/high-availability#replication-lag-monitor)
* [Monitoring MySQL Performance Metrics](https://www.datadoghq.com/blog/monitoring-mysql-performance-metrics)