# CLOUD AWS ELASTICACHE REDIS DataDog monitors

## How to use this module

```hcl
module "datadog-monitors-cloud-aws-elasticache-redis" {
  source      = "claranet/monitors/datadog//cloud/aws/elasticache/redis"
  version     = "{revision}"

  environment = var.environment
  message     = module.datadog-message-alerting.alerting-message
}

```

## Purpose

Creates DataDog monitors with the following checks:

- Elasticache redis cache hit ratio
- Elasticache redis CPU
- Elasticache redis is receiving no commands
- Elasticache redis replication lag

## Requirements

| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.12.31 |
| <a name="requirement_datadog"></a> [datadog](#requirement\_datadog) | >= 3.1.0 |

## Providers

| Name | Version |
|------|---------|
| <a name="provider_datadog"></a> [datadog](#provider\_datadog) | 3.1.2 |

## Modules

| Name | Source | Version |
|------|--------|---------|
| <a name="module_filter-tags"></a> [filter-tags](#module\_filter-tags) | ../../../../common/filter-tags | n/a |

## Resources

| Name | Type |
|------|------|
| [datadog_monitor.redis_cache_hits](https://registry.terraform.io/providers/DataDog/datadog/latest/docs/resources/monitor) | resource |
| [datadog_monitor.redis_commands](https://registry.terraform.io/providers/DataDog/datadog/latest/docs/resources/monitor) | resource |
| [datadog_monitor.redis_cpu_high](https://registry.terraform.io/providers/DataDog/datadog/latest/docs/resources/monitor) | resource |
| [datadog_monitor.redis_replication_lag](https://registry.terraform.io/providers/DataDog/datadog/latest/docs/resources/monitor) | resource |

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| <a name="input_cache_hits_enabled"></a> [cache\_hits\_enabled](#input\_cache\_hits\_enabled) | Flag to enable Elasticache redis cache hits monitor | `string` | `"true"` | no |
| <a name="input_cache_hits_extra_tags"></a> [cache\_hits\_extra\_tags](#input\_cache\_hits\_extra\_tags) | Extra tags for Elasticache redis cache hits monitor | `list(string)` | `[]` | no |
| <a name="input_cache_hits_message"></a> [cache\_hits\_message](#input\_cache\_hits\_message) | Custom message for Elasticache redis cache hits monitor | `string` | `""` | no |
| <a name="input_cache_hits_threshold_critical"></a> [cache\_hits\_threshold\_critical](#input\_cache\_hits\_threshold\_critical) | Elasticache redis cache hits critical threshold in percentage | `string` | `60` | no |
| <a name="input_cache_hits_threshold_warning"></a> [cache\_hits\_threshold\_warning](#input\_cache\_hits\_threshold\_warning) | Elasticache redis cache hits warning threshold in percentage | `string` | `80` | no |
| <a name="input_cache_hits_time_aggregator"></a> [cache\_hits\_time\_aggregator](#input\_cache\_hits\_time\_aggregator) | Monitor aggregator for Elasticache redis cache hits [available values: min, max or avg] | `string` | `"max"` | no |
| <a name="input_cache_hits_timeframe"></a> [cache\_hits\_timeframe](#input\_cache\_hits\_timeframe) | Monitor timeframe for Elasticache redis cache hits [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | `string` | `"last_15m"` | no |
| <a name="input_commands_enabled"></a> [commands\_enabled](#input\_commands\_enabled) | Flag to enable Elasticache redis commands monitor | `string` | `"true"` | no |
| <a name="input_commands_extra_tags"></a> [commands\_extra\_tags](#input\_commands\_extra\_tags) | Extra tags for Elasticache redis commands monitor | `list(string)` | `[]` | no |
| <a name="input_commands_message"></a> [commands\_message](#input\_commands\_message) | Custom message for Elasticache redis commands monitor | `string` | `""` | no |
| <a name="input_commands_timeframe"></a> [commands\_timeframe](#input\_commands\_timeframe) | Monitor timeframe for Elasticache redis commands [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | `string` | `"last_5m"` | no |
| <a name="input_cpu_high_enabled"></a> [cpu\_high\_enabled](#input\_cpu\_high\_enabled) | Flag to enable Elasticache redis cpu high monitor | `string` | `"true"` | no |
| <a name="input_cpu_high_extra_tags"></a> [cpu\_high\_extra\_tags](#input\_cpu\_high\_extra\_tags) | Extra tags for Elasticache redis cpu high monitor | `list(string)` | `[]` | no |
| <a name="input_cpu_high_message"></a> [cpu\_high\_message](#input\_cpu\_high\_message) | Custom message for Elasticache redis cpu high monitor | `string` | `""` | no |
| <a name="input_cpu_high_threshold_critical"></a> [cpu\_high\_threshold\_critical](#input\_cpu\_high\_threshold\_critical) | Elasticache redis cpu high critical threshold in percentage | `string` | `90` | no |
| <a name="input_cpu_high_threshold_warning"></a> [cpu\_high\_threshold\_warning](#input\_cpu\_high\_threshold\_warning) | Elasticache redis cpu high warning threshold in percentage | `string` | `75` | no |
| <a name="input_cpu_high_time_aggregator"></a> [cpu\_high\_time\_aggregator](#input\_cpu\_high\_time\_aggregator) | Monitor aggregator for Elasticache redis cpu high [available values: min, max or avg] | `string` | `"min"` | no |
| <a name="input_cpu_high_timeframe"></a> [cpu\_high\_timeframe](#input\_cpu\_high\_timeframe) | Monitor timeframe for Elasticache redis cpu high [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | `string` | `"last_15m"` | no |
| <a name="input_environment"></a> [environment](#input\_environment) | Infrastructure Environment | `string` | n/a | yes |
| <a name="input_evaluation_delay"></a> [evaluation\_delay](#input\_evaluation\_delay) | Delay in seconds for the metric evaluation | `number` | `900` | no |
| <a name="input_filter_tags_custom"></a> [filter\_tags\_custom](#input\_filter\_tags\_custom) | Tags used for custom filtering when filter\_tags\_use\_defaults is false | `string` | `"*"` | no |
| <a name="input_filter_tags_custom_excluded"></a> [filter\_tags\_custom\_excluded](#input\_filter\_tags\_custom\_excluded) | Tags excluded for custom filtering when filter\_tags\_use\_defaults is false | `string` | `""` | no |
| <a name="input_filter_tags_use_defaults"></a> [filter\_tags\_use\_defaults](#input\_filter\_tags\_use\_defaults) | Use default filter tags convention | `string` | `"true"` | no |
| <a name="input_message"></a> [message](#input\_message) | Message sent when an alert is triggered | `any` | n/a | yes |
| <a name="input_new_host_delay"></a> [new\_host\_delay](#input\_new\_host\_delay) | Delay in seconds before monitor new resource | `number` | `300` | no |
| <a name="input_notify_no_data"></a> [notify\_no\_data](#input\_notify\_no\_data) | Will raise no data alert if set to true | `bool` | `true` | no |
| <a name="input_prefix_slug"></a> [prefix\_slug](#input\_prefix\_slug) | Prefix string to prepend between brackets on every monitors names | `string` | `""` | no |
| <a name="input_redis_cpu_high_no_data_timeframe"></a> [redis\_cpu\_high\_no\_data\_timeframe](#input\_redis\_cpu\_high\_no\_data\_timeframe) | Number of minutes before reporting no data | `string` | `30` | no |
| <a name="input_replication_lag_enabled"></a> [replication\_lag\_enabled](#input\_replication\_lag\_enabled) | Flag to enable Elasticache redis replication lag monitor | `string` | `"true"` | no |
| <a name="input_replication_lag_extra_tags"></a> [replication\_lag\_extra\_tags](#input\_replication\_lag\_extra\_tags) | Extra tags for Elasticache redis replication lag monitor | `list(string)` | `[]` | no |
| <a name="input_replication_lag_message"></a> [replication\_lag\_message](#input\_replication\_lag\_message) | Custom message for Elasticache redis replication lag monitor | `string` | `""` | no |
| <a name="input_replication_lag_threshold_critical"></a> [replication\_lag\_threshold\_critical](#input\_replication\_lag\_threshold\_critical) | Elasticache redis replication lag critical threshold in seconds | `string` | `180` | no |
| <a name="input_replication_lag_threshold_warning"></a> [replication\_lag\_threshold\_warning](#input\_replication\_lag\_threshold\_warning) | Elasticache redis replication lag warning threshold in seconds | `string` | `90` | no |
| <a name="input_replication_lag_time_aggregator"></a> [replication\_lag\_time\_aggregator](#input\_replication\_lag\_time\_aggregator) | Monitor aggregator for Elasticache redis replication lag [available values: min, max or avg] | `string` | `"min"` | no |
| <a name="input_replication_lag_timeframe"></a> [replication\_lag\_timeframe](#input\_replication\_lag\_timeframe) | Monitor timeframe for Elasticache redis replication lag [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | `string` | `"last_10m"` | no |

## Outputs

| Name | Description |
|------|-------------|
| <a name="output_redis_cache_hits_id"></a> [redis\_cache\_hits\_id](#output\_redis\_cache\_hits\_id) | id for monitor redis\_cache\_hits |
| <a name="output_redis_commands_id"></a> [redis\_commands\_id](#output\_redis\_commands\_id) | id for monitor redis\_commands |
| <a name="output_redis_cpu_high_id"></a> [redis\_cpu\_high\_id](#output\_redis\_cpu\_high\_id) | id for monitor redis\_cpu\_high |
| <a name="output_redis_replication_lag_id"></a> [redis\_replication\_lag\_id](#output\_redis\_replication\_lag\_id) | id for monitor redis\_replication\_lag |
## Related documentation

* [https://docs.datadoghq.com/integrations/amazon_elasticache/](https://docs.datadoghq.com/integrations/amazon_elasticache/)
* [https://www.datadoghq.com/blog/monitoring-elasticache-performance-metrics-with-redis-or-memcached/](https://www.datadoghq.com/blog/monitoring-elasticache-performance-metrics-with-redis-or-memcached/)