108 lines
4.0 KiB
HCL
108 lines
4.0 KiB
HCL
### Elasticsearch cluster status monitor ###
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/* Note about the query
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- If aws.es.cluster_statusred is 1 --> query value (= 2.1) > 2 : critical
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- If aws.es.cluster_statusyellow is 1 --> 1 < query value (=1.1) < 2 : warning
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Workaround : in the query, we add "0.1" to the result and we use the comparator ">=". No alert was triggered without that. */
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resource "datadog_monitor" "es_cluster_status" {
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count = "${var.es_cluster_status_enabled == "true" ? 1 : 0}"
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name = "[${var.environment}] ElasticSearch cluster status is not green"
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message = "${coalesce(var.es_cluster_status_message, var.message)}"
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type = "metric alert"
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query = <<EOF
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max(${var.es_cluster_status_timeframe}): (
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avg:aws.es.cluster_statusred${module.filter-tags.query_alert} by {region,name} * 2 +
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(avg:aws.es.cluster_statusyellow${module.filter-tags.query_alert} by {region,name} + 0.1)
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) >= 2
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EOF
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thresholds {
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warning = 1
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critical = 2
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}
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notify_no_data = true
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evaluation_delay = "${var.evaluation_delay}"
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renotify_interval = 0
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notify_audit = false
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timeout_h = 0
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include_tags = true
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locked = false
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require_full_window = false
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new_host_delay = "${var.new_host_delay}"
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silenced = "${var.es_cluster_status_silenced}"
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tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticsearch", "team:claranet", "created-by:terraform", "${var.es_cluster_status_extra_tags}"]
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}
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### Elasticsearch cluster free storage space monitor ###
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resource "datadog_monitor" "es_free_space_low" {
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count = "${var.diskspace_enabled == "true" ? 1 : 0}"
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name = "[${var.environment}] ElasticSearch cluster free storage space {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
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message = "${coalesce(var.diskspace_message, var.message)}"
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type = "metric alert"
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query = <<EOF
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${var.diskspace_time_aggregator}(${var.diskspace_timeframe}): (
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avg:aws.es.free_storage_space${module.filter-tags.query_alert} by {region,name} /
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(${var.es_cluster_volume_size}*1000) * 100
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) < ${var.diskspace_threshold_critical}
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EOF
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thresholds {
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warning = "${var.diskspace_threshold_warning}"
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critical = "${var.diskspace_threshold_critical}"
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}
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notify_no_data = true
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evaluation_delay = "${var.evaluation_delay}"
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renotify_interval = 0
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notify_audit = false
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timeout_h = 0
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include_tags = true
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locked = false
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require_full_window = false
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new_host_delay = "${var.new_host_delay}"
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silenced = "${var.diskspace_silenced}"
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tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticsearch", "team:claranet", "created-by:terraform", "${var.diskspace_extra_tags}"]
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}
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### Elasticsearch cluster CPU monitor ###
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resource "datadog_monitor" "es_cpu_90_15min" {
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count = "${var.cpu_enabled == "true" ? 1 : 0}"
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name = "[${var.environment}] ElasticSearch cluster CPU high {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
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message = "${coalesce(var.cpu_message, var.message)}"
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type = "metric alert"
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query = <<EOF
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${var.cpu_time_aggregator}(${var.cpu_timeframe}): (
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avg:aws.es.cpuutilization${module.filter-tags.query_alert} by {region,name}
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) > ${var.cpu_threshold_critical}
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EOF
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thresholds {
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warning = "${var.cpu_threshold_warning}"
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critical = "${var.cpu_threshold_critical}"
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}
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notify_no_data = true
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evaluation_delay = "${var.evaluation_delay}"
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renotify_interval = 0
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notify_audit = false
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timeout_h = 0
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include_tags = true
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locked = false
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require_full_window = false
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new_host_delay = "${var.new_host_delay}"
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silenced = "${var.cpu_silenced}"
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tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticsearch", "team:claranet", "created-by:terraform", "${var.cpu_extra_tags}"]
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}
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