92 lines
6.7 KiB
Markdown
92 lines
6.7 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@git.fr.clara.net/claranet/pt-monitoring/projects/datadog/terraform/monitors.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 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 healthy instances
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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\_enabled | Flag to enable ELB 4xx errors monitor | string | `"true"` | no |
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| elb\_4xx\_extra\_tags | Extra tags for ELB 4xx errors monitor | list(string) | `[]` | no |
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| elb\_4xx\_message | Custom message for ELB 4xx errors monitor | string | `""` | 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\_enabled | Flag to enable ELB 5xx errors monitor | string | `"true"` | no |
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| elb\_5xx\_extra\_tags | Extra tags for ELB 5xx errors monitor | list(string) | `[]` | no |
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| elb\_5xx\_message | Custom message for ELB 5xx errors monitor | string | `""` | 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\_enabled | Flag to enable ELB backend 4xx errors monitor | string | `"true"` | no |
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| elb\_backend\_4xx\_extra\_tags | Extra tags for ELB backend 4xx errors monitor | list(string) | `[]` | 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\_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\_enabled | Flag to enable ELB backend 5xx errors monitor | string | `"true"` | no |
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| elb\_backend\_5xx\_extra\_tags | Extra tags for ELB backend 5xx errors monitor | list(string) | `[]` | 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\_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 | `"3"` | no |
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| elb\_backend\_latency\_enabled | Flag to enable ELB backend latency monitor | string | `"true"` | no |
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| elb\_backend\_latency\_extra\_tags | Extra tags for ELB backend latency monitor | list(string) | `[]` | 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\_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\_enabled | Flag to enable ELB no healty instance monitor | string | `"true"` | no |
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| elb\_no\_healthy\_instance\_extra\_tags | Extra tags for ELB no healty instance monitor | list(string) | `[]` | 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\_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 | n/a | 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\_custom\_excluded | Tags excluded 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 | n/a | yes |
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| new\_host\_delay | Delay in seconds before monitor new resource | string | `"300"` | no |
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| prefix\_slug | Prefix string to prepend between brackets on every monitors names | string | `""` | 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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