90 lines
6.3 KiB
Markdown
90 lines
6.3 KiB
Markdown
# CLOUD AWS ELB DataDog monitors
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## How to use this module
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```
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module "datadog-monitors-cloud-aws-elb" {
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source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//cloud/aws/elb?ref={revision}"
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environment = "${var.environment}"
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message = "${module.datadog-message-alerting.alerting-message}"
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}
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```
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## Purpose
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Creates DataDog monitors with the following checks:
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- ELB no healthy instances
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- ELB 4xx errors too high
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- ELB 5xx errors too high
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- ELB backend 4xx errors too high
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- ELB backend 5xx errors too high
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- ELB latency too high
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## Inputs
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| Name | Description | Type | Default | Required |
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|------|-------------|:----:|:-----:|:-----:|
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| artificial_requests_count | Number of false requests used to mitigate false positive in case of low trafic | string | `5` | no |
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| elb_4xx_extra_tags | Extra tags for ELB 4xx errors monitor | list | `<list>` | no |
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| elb_4xx_message | Custom message for ELB 4xx errors monitor | string | `` | no |
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| elb_4xx_silenced | Groups to mute for ELB 4xx errors monitor | map | `<map>` | no |
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| elb_4xx_threshold_critical | loadbalancer 4xx critical threshold in percentage | string | `10` | no |
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| elb_4xx_threshold_warning | loadbalancer 4xx warning threshold in percentage | string | `5` | no |
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| elb_4xx_timeframe | Monitor timeframe for ELB 4xx errors [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| elb_5xx_extra_tags | Extra tags for ELB 5xx errors monitor | list | `<list>` | no |
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| elb_5xx_message | Custom message for ELB 5xx errors monitor | string | `` | no |
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| elb_5xx_silenced | Groups to mute for ELB 5xx errors monitor | map | `<map>` | no |
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| elb_5xx_threshold_critical | loadbalancer 5xx critical threshold in percentage | string | `10` | no |
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| elb_5xx_threshold_warning | loadbalancer 5xx warning threshold in percentage | string | `5` | no |
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| elb_5xx_timeframe | Monitor timeframe for ELB 5xx errors [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| elb_backend_4xx_extra_tags | Extra tags for ELB backend 4xx errors monitor | list | `<list>` | no |
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| elb_backend_4xx_message | Custom message for ELB backend 4xx errors monitor | string | `` | no |
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| elb_backend_4xx_silenced | Groups to mute for ELB backend 4xx errors monitor | map | `<map>` | no |
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| elb_backend_4xx_threshold_critical | loadbalancer backend 4xx critical threshold in percentage | string | `10` | no |
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| elb_backend_4xx_threshold_warning | loadbalancer backend 4xx warning threshold in percentage | string | `5` | no |
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| elb_backend_4xx_timeframe | Monitor timeframe for ELB backend 4xx errors [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| elb_backend_5xx_extra_tags | Extra tags for ELB backend 5xx errors monitor | list | `<list>` | no |
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| elb_backend_5xx_message | Custom message for ELB backend 5xx errors monitor | string | `` | no |
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| elb_backend_5xx_silenced | Groups to mute for ELB backend 5xx errors monitor | map | `<map>` | no |
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| elb_backend_5xx_threshold_critical | loadbalancer backend 5xx critical threshold in percentage | string | `10` | no |
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| elb_backend_5xx_threshold_warning | loadbalancer backend 5xx warning threshold in percentage | string | `5` | no |
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| elb_backend_5xx_timeframe | Monitor timeframe for ELB backend 5xx errors [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| elb_backend_latency_critical | latency critical threshold in seconds | string | `5` | no |
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| elb_backend_latency_extra_tags | Extra tags for ELB backend latency monitor | list | `<list>` | no |
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| elb_backend_latency_message | Custom message for ELB backend latency monitor | string | `` | no |
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| elb_backend_latency_silenced | Groups to mute for ELB backend latency monitor | map | `<map>` | no |
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| elb_backend_latency_time_aggregator | Monitor aggregator for ELB backend latency [available values: min, max or avg] | string | `min` | no |
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| elb_backend_latency_timeframe | Monitor timeframe for ELB backend latency [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| elb_backend_latency_warning | latency warning threshold in seconds | string | `1` | no |
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| elb_no_healthy_instance_extra_tags | Extra tags for ELB no healty instance monitor | list | `<list>` | no |
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| elb_no_healthy_instance_message | Custom message for ELB no healty instance monitor | string | `` | no |
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| elb_no_healthy_instance_silenced | Groups to mute for ELB no healty instance monitor | map | `<map>` | no |
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| elb_no_healthy_instance_time_aggregator | Monitor aggregator for ELB no healty instance [available values: min or max] | string | `min` | no |
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| elb_no_healthy_instance_timeframe | Monitor timeframe for ELB no healty instance [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| environment | Architecture Environment | string | - | yes |
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| evaluation_delay | Delay in seconds for the metric evaluation | string | `900` | no |
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| filter_tags_custom | Tags used for custom filtering when filter_tags_use_defaults is false | string | `*` | no |
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| filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
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| message | Message sent when an alert is triggered | string | - | yes |
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| new_host_delay | Delay in seconds before monitor new resource | string | `300` | no |
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## Outputs
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| Name | Description |
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|------|-------------|
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| ELB_backend_latency_id | id for monitor ELB_backend_latency |
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| ELB_no_healthy_instances_id | id for monitor ELB_no_healthy_instances |
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| ELB_too_much_4xx_backend_id | id for monitor ELB_too_much_4xx_backend |
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| ELB_too_much_4xx_id | id for monitor ELB_too_much_4xx |
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| ELB_too_much_5xx_backend_id | id for monitor ELB_too_much_5xx_backend |
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| ELB_too_much_5xx_id | id for monitor ELB_too_much_5xx |
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## Related documentation
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DataDog blog: [https://www.datadoghq.com/blog/monitor-application-load-balancer/](https://www.datadoghq.com/blog/monitor-application-load-balancer/)
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AWS ELB metrics documentation: [https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-cloudwatch-metrics.html](https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-cloudwatch-metrics.html)
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