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MON-96 - Migrated system/linux monitors into system/generic

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This commit is contained in:
Alexandre Gaillet 2018-02-22 14:56:25 +01:00
parent 73d81d7053
commit 4fcbd5da7e
10 changed files with 164 additions and 326 deletions
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2
cloud/aws/elasticsearch/monitors-elasticsearch.tf
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@ -98,7 +98,7 @@ EOF
timeout_h = 0 timeout_h = 0
include_tags = true include_tags = true
locked = false locked = false
require_full_window = true require_full_window = false
new_host_delay = "${var.evaluation_delay}" new_host_delay = "${var.evaluation_delay}"
no_data_timeframe = 20 no_data_timeframe = 20

8
middleware/apache/monitors-apache.tf
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@ -1,9 +1,9 @@
resource "datadog_monitor" "Apache_process" { resource "datadog_monitor" "datadog_apache_process" {
name = "[${var.environment}] Apache process is down on {{host.name}}" name = "[${var.environment}] Can't connect to apache, process is not running on {{host.name}}"
message = "${var.message}" message = "${var.message}"
type = "service check" type = "service check"
query = "\"apache.can_connect\".over(\"dd_monitoring:enabled\",\"dd_apache:enabled\",\"process:apache\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()" query = "\"apache.can_connect\".over(\"dd_monitoring:enabled\",\"dd_apache:enabled\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()"
thresholds = { thresholds = {
ok = 1 ok = 1
@ -22,5 +22,5 @@ resource "datadog_monitor" "Apache_process" {
require_full_window = true require_full_window = true
no_data_timeframe = 20 no_data_timeframe = 20
tags = ["env:${var.environment}", "type:resource"] tags = ["env:${var.environment}", "resource:apache"]
} }

8
middleware/nginx/monitors-nginx.tf
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@ -1,9 +1,9 @@
resource "datadog_monitor" "Nginx_process" { resource "datadog_monitor" "datadog_nginx_process" {
name = "[${var.environment}] Nginx process is down on {{host.name}}" name = "[${var.environment}] Can't connect to nginx, process is not running on {{host.name}}"
message = "${var.message}" message = "${var.message}"
type = "service check" type = "service check"
query = "\"nginx.can_connect\".over(\"dd_monitoring:enabled\",\"dd_nginx:enabled\",\"process:nginx\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()" query = "\"nginx.can_connect\".over(\"dd_monitoring:enabled\",\"dd_nginx:enabled\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()"
thresholds = { thresholds = {
ok = 1 ok = 1
@ -22,5 +22,5 @@ resource "datadog_monitor" "Nginx_process" {
require_full_window = true require_full_window = true
no_data_timeframe = 20 no_data_timeframe = 20
tags = ["env:${var.environment}", "type:resource"] tags = ["env:${var.environment}", "resource:nginx"]
} }

14
middleware/php-fpm/monitors-fpm.tf
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@ -2,11 +2,11 @@ data "template_file" "filter" {
template = "$${filter}" template = "$${filter}"
vars { vars {
filter = "${var.filter_tags_use_defaults == "true" ? format("dd_monitoring:enabled,dd_aws_php_fpm:enabled,env:%s", var.environment) : "${var.filter_tags_custom}"}" filter = "${var.filter_tags_use_defaults == "true" ? format("dd_monitoring:enabled,dd_php_fpm:enabled,env:%s", var.environment) : "${var.filter_tags_custom}"}"
} }
} }
resource "datadog_monitor" "php-fpm_process_idle" { resource "datadog_monitor" "datadog_php_fpm_process_idle" {
name = "[${var.environment}] php_fpm busy worker {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)" name = "[${var.environment}] php_fpm busy worker {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}" message = "${var.message}"
@ -35,15 +35,15 @@ resource "datadog_monitor" "php-fpm_process_idle" {
require_full_window = true require_full_window = true
no_data_timeframe = 20 no_data_timeframe = 20
tags = ["env:${var.environment}", "type:resource"] tags = ["env:${var.environment}", "resource:php-fpm"]
} }
resource "datadog_monitor" "FPM_process" { resource "datadog_monitor" "datadog_fpm_process" {
name = "[${var.environment}] FPM process is down on {{host.name}}" name = "[${var.environment}] Can't ping FPM, process is not running on {{host.name}}"
message = "${var.message}" message = "${var.message}"
type = "service check" type = "service check"
query = "\"php_fpm.can_ping\".over(\"dd_monitoring:enabled\",\"dd_php_fpm:enabled\",\"process:php_fpm\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()" query = "\"php_fpm.can_ping\".over(\"dd_monitoring:enabled\",\"dd_php_fpm:enabled\",\"env:${var.environment}\").by(\"host\",\"port\").last(6).count_by_status()"
thresholds = { thresholds = {
ok = 1 ok = 1
@ -62,5 +62,5 @@ resource "datadog_monitor" "FPM_process" {
require_full_window = true require_full_window = true
no_data_timeframe = 20 no_data_timeframe = 20
tags = ["env:${var.environment}", "type:resource"] tags = ["env:${var.environment}", "resource:php-fpm"]
} }

12
system/generic/README.md
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@ -24,11 +24,17 @@ Inputs
| Name | Description | Type | Default | Required | | Name | Description | Type | Default | Required |
|------|-------------|:----:|:-----:|:-----:| |------|-------------|:----:|:-----:|:-----:|
| custom_cpu_period | Set up period for the query | string | `last_5m` | no | | cpu_high_threshold_critical | CPU high critical threshold | string | `95` | no |
| custom_cpu_threshold_critical | Custom CPU critical threshold | string | `95` | no | | cpu_high_threshold_warning | CPU high warning threshold | string | `80` | no |
| custom_cpu_threshold_warning | Custom CPU warning threshold | string | `80` | no | | cpu_high_timeframe | CPU high timeframe | string | `last_5m` | no |
| environment | Architecture Environment | string | - | yes | | environment | Architecture Environment | string | - | yes |
| evaluation_delay | Delay in seconds for the metric evaluation | string | `600` | no | | evaluation_delay | Delay in seconds for the metric evaluation | string | `600` | no |
| filter_tags_custom | Tags used for custom filtering when filter_tags_use_defaults is false | string | `*` | 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 | | filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
| free_disk_inodes_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_disk_inodes_threshold_warning | Free disk space warning threshold | string | `10` | no |
| free_disk_space_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_disk_space_threshold_warning | Free disk space warning threshold | string | `10` | no |
| free_memory_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_memory_threshold_warning | Free disk space warning threshold | string | `10` | no |
| message | Message sent when an alert is triggered | string | - | yes | | message | Message sent when an alert is triggered | string | - | yes |

42
system/generic/inputs.tf
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@ -26,17 +26,47 @@ variable "filter_tags_custom" {
# Custom CPU instance specific # Custom CPU instance specific
variable "custom_cpu_period" { variable "cpu_high_timeframe" {
description = "Set up period for the query" description = "CPU high timeframe"
default = "last_5m" default = "last_5m"
} }
variable "custom_cpu_threshold_warning" { variable "cpu_high_threshold_warning" {
description = "Custom CPU warning threshold" description = "CPU high warning threshold"
default = 80 default = 80
} }
variable "custom_cpu_threshold_critical" { variable "cpu_high_threshold_critical" {
description = "Custom CPU critical threshold" description = "CPU high critical threshold"
default = 95 default = 95
} }
variable "free_disk_space_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_disk_space_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}
variable "free_disk_inodes_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_disk_inodes_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}
variable "free_memory_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_memory_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}

111
system/generic/monitors-system.tf
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@ -6,24 +6,119 @@ data "template_file" "filter" {
} }
} }
resource "datadog_monitor" "cpu_custom" { resource "datadog_monitor" "datadog_cpu_too_high" {
name = "[${var.environment}] CPU too High {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)" name = "[${var.environment}] CPU too High {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}" message = "${var.message}"
query = <<EOF query = <<EOF
min(${var.custom_cpu_period}): ( min(${var.cpu_high_timeframe}): (
avg:system.cpu.system{${data.template_file.filter.rendered}} by {region,host.name,host.ip} + avg:system.cpu.system{${data.template_file.filter.rendered}} by {region,host} +
avg:system.cpu.user{${data.template_file.filter.rendered}} by {region,host.name,host.ip} avg:system.cpu.user{${data.template_file.filter.rendered}} by {region,host}
) > ${var.custom_cpu_threshold_critical}" ) > ${var.cpu_high_threshold_critical}
EOF EOF
type = "metric alert" type = "metric alert"
thresholds = { thresholds {
warning = "${var.custom_cpu_threshold_warning}" warning = "${var.cpu_high_threshold_warning}"
critical = "${var.custom_cpu_threshold_critical}" critical = "${var.cpu_high_threshold_critical}"
} }
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_disk_space_too_low" {
name = "[${var.environment}] Free disk space {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}"
query = <<EOF
sum(last_5m): (
avg:system.disk.free{${data.template_file.filter.rendered}} by {region,host,device} /
avg:system.disk.total{${data.template_file.filter.rendered}} by {region,host,device} * 100
) < ${var.free_disk_space_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_disk_space_threshold_warning}"
critical = "${var.free_disk_space_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_disk_space_inodes_too_low" {
name = "[${var.environment}] Free disk inodes {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}"
query = <<EOF
sum(last_5m): (
avg:system.fs.inodes.free{${data.template_file.filter.rendered}} by {region,host,device} /
avg:system.fs.inodes.total{${data.template_file.filter.rendered}} by {region,host,device} * 100
) < ${var.free_disk_inodes_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_disk_inodes_threshold_warning}"
critical = "${var.free_disk_inodes_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_memory" {
name = "[${var.environment}] Free memory {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "Debugging alert - no escalation"
query = <<EOF
sum(last_1m): (
avg:system.mem.free{${data.template_file.filter.rendered}} by {region,host} /
avg:system.mem.total{${data.template_file.filter.rendered}} by {region,host} * 100
) < ${var.free_memory_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_memory_threshold_warning}"
critical = "${var.free_memory_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true notify_no_data = true
evaluation_delay = "${var.evaluation_delay}" evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}" new_host_delay = "${var.evaluation_delay}"

43
system/linux/README.md
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@ -1,43 +0,0 @@
System Linux DataDog monitors
=============================
How to use this module
----------------------
```
module "datadog-monitors-system-generic" {
source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//system/linux?ref={revision}"
message = "${module.datadog-message-alerting.alerting-message}"
environment = "${var.environment}"
}
```
Purpose
-------
Creates a DataDog monitors with the following checks :
* System CPU High
* System Free disk space
* System Free disk inodes
* System Free memory
Inputs
------
| Name | Description | Type | Default | Required |
|------|-------------|:----:|:-----:|:-----:|
| cpu_high_threshold_critical | CPU high critical threshold | string | `95` | no |
| cpu_high_threshold_warning | CPU high warning threshold | string | `80` | no |
| custom_cpu_period | Set up period for the query | string | `last_5m` | no |
| environment | Architecture Environment | string | - | yes |
| evaluation_delay | Delay in seconds for the metric evaluation | string | `600` | 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 |
| free_disk_inodes_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_disk_inodes_threshold_warning | Free disk space warning threshold | string | `10` | no |
| free_disk_space_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_disk_space_threshold_warning | Free disk space warning threshold | string | `10` | no |
| free_memory_threshold_critical | Free disk space critical threshold | string | `5` | no |
| free_memory_threshold_warning | Free disk space warning threshold | string | `10` | no |
| message | Message sent when an alert is triggered | string | - | yes |

72
system/linux/inputs.tf
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@ -1,72 +0,0 @@
# Global Terraform
variable "environment" {
description = "Architecture Environment"
type = "string"
}
# Global DataDog
variable "evaluation_delay" {
description = "Delay in seconds for the metric evaluation"
default = 600
}
variable "message" {
description = "Message sent when an alert is triggered"
}
variable "filter_tags_use_defaults" {
description = "Use default filter tags convention"
default = "true"
}
variable "filter_tags_custom" {
description = "Tags used for custom filtering when filter_tags_use_defaults is false"
default = "*"
}
# Custom CPU instance specific
variable "custom_cpu_period" {
description = "Set up period for the query"
default = "last_5m"
}
variable "cpu_high_threshold_warning" {
description = "CPU high warning threshold"
default = 80
}
variable "cpu_high_threshold_critical" {
description = "CPU high critical threshold"
default = 95
}
variable "free_disk_space_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_disk_space_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}
variable "free_disk_inodes_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_disk_inodes_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}
variable "free_memory_threshold_warning" {
description = "Free disk space warning threshold"
default = 10
}
variable "free_memory_threshold_critical" {
description = "Free disk space critical threshold"
default = 5
}

178
system/linux/monitors-linux.tf
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@ -1,178 +0,0 @@
data "template_file" "filter" {
template = "$${filter}"
vars {
filter = "${var.filter_tags_use_defaults == "true" ? format("dd_monitoring:enabled,dd_aws_linux:enabled,env:%s", var.environment) : "${var.filter_tags_custom}"}"
}
}
resource "datadog_monitor" "datadog_cpu_too_high" {
name = "[${var.environment}] CPU High {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}"
query = <<EOF
min(last_15m): (
avg:system.cpu.system{${data.template_file.filter.rendered}} by {region,host} +
avg:system.cpu.user{${data.template_file.filter.rendered}} by {region,host}
) > ${var.cpu_high_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.cpu_high_threshold_warning}"
critical = "${var.cpu_high_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_disk_space_too_low" {
name = "[${var.environment}] Free disk space {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}"
query = <<EOF
sum(last_5m): (
avg:system.disk.free{${data.template_file.filter.rendered}} by {region,host,device} /
avg:system.disk.total{${data.template_file.filter.rendered}} by {region,host,device} * 100
) < ${var.free_disk_space_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_disk_space_threshold_warning}"
critical = "${var.free_disk_space_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_disk_space_inodes_too_low" {
name = "[${var.environment}] Free disk inodes {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "${var.message}"
query = <<EOF
sum(last_5m): (
avg:system.fs.inodes.free{${data.template_file.filter.rendered}} by {region,host,device} /
avg:system.fs.inodes.total{${data.template_file.filter.rendered}} by {region,host,device} * 100
) < ${var.free_disk_inodes_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_disk_inodes_threshold_warning}"
critical = "${var.free_disk_inodes_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
resource "datadog_monitor" "datadog_free_memory" {
name = "[${var.environment}] Free memory {{comparator}} {{#is_alert}}{{threshold}}%{{/is_alert}}{{#is_warning}}{{warn_threshold}}%{{/is_warning}} ({{value}}%)"
message = "Debugging alert - no escalation"
query = <<EOF
sum(last_1m): (
avg:system.mem.free{${data.template_file.filter.rendered}} by {region,host} /
avg:system.mem.total{${data.template_file.filter.rendered}} by {region,host} * 100
) < ${var.free_memory_threshold_critical}
EOF
type = "metric alert"
thresholds {
warning = "${var.free_memory_threshold_warning}"
critical = "${var.free_memory_threshold_critical}"
}
tags = ["env:${var.environment}", "type:system"]
notify_no_data = true
evaluation_delay = "${var.evaluation_delay}"
new_host_delay = "${var.evaluation_delay}"
renotify_interval = 0
notify_audit = false
timeout_h = 0
include_tags = true
locked = false
require_full_window = true
no_data_timeframe = 20
}
# resource "datadog_monitor" "datadog_cpu_load" {
# name = "CPU Load > 2"
# message = "Debugging alert - no escalation"
# query = "min(last_5m):avg:system.load.5{dd_monitoring:enabled,dd_linux_basics:enabled,!dd_custom_cpu:enabled} by {instance-id} / avg:gcp.gce.instance.cpu.reserved_cores{*} by {instance-id} > 2"
# type = "query alert"
# count = "${var.dd_linux_basics == "enabled" ? 1 : 0}"
# notify_no_data = "${var.linux_basics_config["notify_no_data"]}"
# evaluation_delay = "${var.linux_basics_config["delay"]}"
# new_host_delay = "${var.linux_basics_config["delay"]}"
# renotify_interval = 60
# notify_audit = false
# timeout_h = 0
# include_tags = true
# locked = false
# require_full_window = true
# no_data_timeframe = 20
# }
# resource "datadog_monitor" "datadog_host_unreachable" {
# name = "Host unreachable"
# message = "{{#is_alert}}\n${var.hno_escalation_group} \n{{/is_alert}} \n{{#is_recovery}}\n${var.hno_escalation_group} \n{{/is_recovery}}"
# query = "datadog.agent.up.over(dd_monitoring:enabled,dd_linux_basics:enabled,env:${var.env},!dd_custom_cpu:enabled).last(1).count_by_status()"
# type = "service check"
# count = "${var.dd_linux_basics == "enabled" ? 1 : 0}"
# notify_no_data = "${var.linux_basics_config["notify_no_data"]}"
# evaluation_delay = "${var.linux_basics_config["delay"]}"
# new_host_delay = "${var.linux_basics_config["delay"]}"
# renotify_interval = 60
# notify_audit = false
# timeout_h = 0
# include_tags = true
# locked = false
# require_full_window = true
# no_data_timeframe = 20
# }