117 lines
5.2 KiB
HCL

resource "datadog_monitor" "redis_cache_hits" {
count = "${var.cache_hits_enabled == "true" ? 1 : 0}"
name = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Elasticache redis cache hit ratio {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
message = "${coalesce(var.cache_hits_message, var.message)}"
type = "query alert"
query = <<EOQ
${var.cache_hits_time_aggregator}(${var.cache_hits_timeframe}): default(
avg:aws.elasticache.cache_hits${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}.as_rate() / (
avg:aws.elasticache.cache_hits${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}.as_rate() +
avg:aws.elasticache.cache_misses${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}.as_rate())
* 100, 100) < ${var.cache_hits_threshold_critical}
EOQ
thresholds {
warning = "${var.cache_hits_threshold_warning}"
critical = "${var.cache_hits_threshold_critical}"
}
notify_no_data = false
evaluation_delay = "${var.evaluation_delay}"
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = false
new_host_delay = "${var.new_host_delay}"
tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticache-redis", "team:claranet", "created-by:terraform", "engine:redis", "${var.cache_hits_extra_tags}"]
}
resource "datadog_monitor" "redis_cpu_high" {
count = "${var.cpu_high_enabled == "true" ? 1 : 0}"
name = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Elasticache redis CPU {{#is_alert}}{{{comparator}}} {{threshold}}% ({{value}}%){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}% ({{value}}%){{/is_warning}}"
message = "${coalesce(var.cpu_high_message, var.message)}"
type = "query alert"
query = <<EOQ
${var.cpu_high_time_aggregator}(${var.cpu_high_timeframe}): (
avg:aws.elasticache.engine_cpuutilization${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}
) > ${var.cpu_high_threshold_critical}
EOQ
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = false
new_host_delay = "${var.new_host_delay}"
tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticache-redis", "team:claranet", "created-by:terraform", "engine:redis", "${var.cpu_high_extra_tags}"]
}
resource "datadog_monitor" "redis_replication_lag" {
count = "${var.replication_lag_enabled == "true" ? 1 : 0}"
name = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Elasticache redis replication lag {{#is_alert}}{{{comparator}}} {{threshold}}s ({{value}}s){{/is_alert}}{{#is_warning}}{{{comparator}}} {{warn_threshold}}s ({{value}}s){{/is_warning}}"
message = "${coalesce(var.replication_lag_message, var.message)}"
type = "query alert"
query = <<EOQ
${var.replication_lag_time_aggregator}(${var.replication_lag_timeframe}): (
avg:aws.elasticache.replication_lag${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}
) > ${var.replication_lag_threshold_critical}
EOQ
thresholds {
warning = "${var.replication_lag_threshold_warning}"
critical = "${var.replication_lag_threshold_critical}"
}
notify_no_data = false
evaluation_delay = "${var.evaluation_delay}"
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = false
new_host_delay = "${var.new_host_delay}"
tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticache-redis", "team:claranet", "created-by:terraform", "engine:redis", "${var.replication_lag_extra_tags}"]
}
resource "datadog_monitor" "redis_commands" {
count = "${var.commands_enabled == "true" ? 1 : 0}"
name = "${var.prefix_slug == "" ? "" : "[${var.prefix_slug}]"}[${var.environment}] Elasticache redis is receiving no commands"
message = "${coalesce(var.commands_message, var.message)}"
type = "query alert"
query = <<EOQ
sum(${var.commands_timeframe}): (
avg:aws.elasticache.get_type_cmds${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}.as_count() +
avg:aws.elasticache.set_type_cmds${module.filter-tags.query_alert} by {region,cacheclusterid,cachenodeid}.as_count()
) <= 0
EOQ
notify_no_data = false
evaluation_delay = "${var.evaluation_delay}"
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = false
new_host_delay = "${var.new_host_delay}"
tags = ["env:${var.environment}", "type:cloud", "provider:aws", "resource:elasticache-redis", "team:claranet", "created-by:terraform", "engine:redis", "${var.commands_extra_tags}"]
}