# CLOUD AWS ELASTICACHE REDIS DataDog monitors

## How to use this module

```
module "datadog-monitors-cloud-aws-elasticache-redis" {
  source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//cloud/aws/elasticache/redis?ref={revision}"

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

```

## Purpose

Creates DataDog monitors with the following checks:

- Elasticache redis cache hits
- Elasticache redis CPU
- Elasticache redis is receiving no commands
- Elasticache redis replication lag

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|:----:|:-----:|:-----:|
| cache_hits_enabled | Flag to enable Elasticache redis cache hits monitor | string | `true` | no |
| cache_hits_extra_tags | Extra tags for Elasticache redis cache hits monitor | list | `<list>` | no |
| cache_hits_message | Custom message for Elasticache redis cache hits monitor | string | `` | no |
| cache_hits_silenced | Groups to mute for Elasticache redis cache hits monitor | map | `<map>` | no |
| cache_hits_threshold_critical | Elasticache redis cache hits critical threshold in percentage | string | `10` | no |
| cache_hits_threshold_warning | Elasticache redis cache hits warning threshold in percentage | string | `20` | no |
| 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 |
| commands_enabled | Flag to enable Elasticache redis commands monitor | string | `true` | no |
| commands_extra_tags | Extra tags for Elasticache redis commands monitor | list | `<list>` | no |
| commands_message | Custom message for Elasticache redis commands monitor | string | `` | no |
| commands_silenced | Groups to mute for Elasticache redis commands monitor | map | `<map>` | no |
| 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 |
| cpu_high_enabled | Flag to enable Elasticache redis cpu high monitor | string | `true` | no |
| cpu_high_extra_tags | Extra tags for Elasticache redis cpu high monitor | list | `<list>` | no |
| cpu_high_message | Custom message for Elasticache redis cpu high monitor | string | `` | no |
| cpu_high_silenced | Groups to mute for Elasticache redis cpu high monitor | map | `<map>` | no |
| cpu_high_threshold_critical | Elasticache redis cpu high critical threshold in percentage | string | `90` | no |
| cpu_high_threshold_warning | Elasticache redis cpu high warning threshold in percentage | string | `75` | no |
| cpu_high_time_aggregator | Monitor aggregator for Elasticache redis cpu high [available values: min, max or avg] | string | `avg` | no |
| 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 |
| environment | Infrastructure Environment | string | - | yes |
| evaluation_delay | Delay in seconds for the metric evaluation | string | `900` | no |
| filter_tags_custom | Tags used for custom filtering when filter_tags_use_defaults is false | string | `*` | no |
| filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
| message | Message sent when an alert is triggered | string | - | yes |
| new_host_delay | Delay in seconds before monitor new resource | string | `300` | no |
| replication_lag_enabled | Flag to enable Elasticache redis replication lag monitor | string | `true` | no |
| replication_lag_extra_tags | Extra tags for Elasticache redis replication lag monitor | list | `<list>` | no |
| replication_lag_message | Custom message for Elasticache redis replication lag monitor | string | `` | no |
| replication_lag_silenced | Groups to mute for Elasticache redis replication lag monitor | map | `<map>` | no |
| replication_lag_threshold_critical | Elasticache redis replication lag critical threshold in seconds | string | `1` | no |
| replication_lag_threshold_warning | Elasticache redis replication lag warning threshold in seconds | string | `0` | no |
| replication_lag_time_aggregator | Monitor aggregator for Elasticache redis replication lag [available values: min, max or avg] | string | `min` | no |
| 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_5m` | no |

## Outputs

| Name | Description |
|------|-------------|
| redis_cache_hits_id | id for monitor redis_cache_hits |
| redis_commands_id | id for monitor redis_commands |
| redis_cpu_high_id | id for monitor redis_cpu_high |
| 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/)