Blackbox Exporter для мониторинга сайтов
Скачиваем Blackbox Exporter для дальнейшей настройки мониторинга сайтов в Prometheus:
cd /opt
mkdir /opt/blackbox_exporter
wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.15.1/blackbox_exporter-0.15.1.linux-amd64.tar.gz
tar -C blackbox_exporter --strip 1 -xf blackbox_exporter-*.linux-amd64.tar.gz
rm -f blackbox_exporter-*.linux-amd64.tar.gz
Создаем сервис для blackbox и применяем настройки:
[Unit]
Description=Blackbox Exporter Service
Wants=network-online.target
After=network-online.target
[Service]
User=root
Group=root
Type=Simple
ExecStart=/opt/blackbox_exporter/blackbox_exporter \
--config.file /opt/blackbox_exporter/blackbox.yml
Restart=always
[Install]
WantedBy=multi-user.target
systemctl daemon-reload && systemctl enable blackbox-exporter.service && systemctl start blackbox-exporter.service
Приводим конфигурационный файл blackbox.yml к виду:
modules:
http_2xx:
prober: http
timeout: 15s
http:
valid_http_versions:
- "HTTP/1.0"
- "HTTP/1.1"
- "HTTP/2"
method: GET
valid_status_codes: [200]
fail_if_ssl: false
fail_if_not_ssl: false
tls_config:
Вносим правки в файл prometheus.yml:
scrape_configs:
- job_name: 'blackbox'
metrics_path: /probe
params:
module: [http_2xx]
static_configs:
- targets:
- https://yandex.ru
- https://habr.com
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: localhost:9115
Перезапускаем prometheus и blackbox:
curl -s -XPOST localhost:9090/-/reload && systemctl restart blackbox.service
Импортируем дашборд для проверки URL в Prometheus:
{
"__inputs": [
{
"name": "DS_SIGNCL-PROMETHEUS",
"label": "signcl-prometheus",
"description": "",
"type": "datasource",
"pluginId": "prometheus",
"pluginName": "Prometheus"
}
],
"__requires": [
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "5.2.2"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": "5.0.0"
},
{
"type": "datasource",
"id": "prometheus",
"name": "Prometheus",
"version": "5.0.0"
},
{
"type": "panel",
"id": "singlestat",
"name": "Singlestat",
"version": "5.0.0"
}
],
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"description": "Prometheus Blackbox Exporter Overview",
"editable": true,
"gnetId": 7587,
"graphTooltip": 0,
"id": null,
"iteration": 1534695504413,
"links": [],
"panels": [
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"fill": 1,
"gridPos": {
"h": 8,
"w": 24,
"x": 0,
"y": 0
},
"id": 138,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "probe_duration_seconds{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"legendFormat": "",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeShift": null,
"title": "Global Probe Duration",
"tooltip": {
"shared": true,
"sort": 1,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "s",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"collapsed": false,
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 8
},
"id": 15,
"panels": [],
"repeat": "target",
"title": "$target status",
"type": "row"
},
{
"cacheTimeout": null,
"colorBackground": true,
"colorValue": false,
"colors": [
"#d44a3a",
"rgba(237, 129, 40, 0.89)",
"#299c46"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 4,
"x": 0,
"y": 9
},
"id": 2,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"minSpan": 3,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"repeatDirection": "v",
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "probe_success{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "1,1",
"title": "Status",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
},
{
"op": "=",
"text": "UP",
"value": "1"
},
{
"op": "=",
"text": "DOWN",
"value": "0"
}
],
"valueName": "current"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"fill": 1,
"gridPos": {
"h": 6,
"w": 10,
"x": 4,
"y": 9
},
"id": 25,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "probe_http_duration_seconds{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"legendFormat": "",
"refId": "B"
}
],
"thresholds": [],
"timeFrom": null,
"timeShift": null,
"title": "HTTP Duration",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "s",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"fill": 1,
"gridPos": {
"h": 6,
"w": 10,
"x": 14,
"y": 9
},
"id": 17,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"repeat": null,
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "probe_duration_seconds{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"legendFormat": "seconds",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeShift": null,
"title": "Probe Duration",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "s",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"decimals": 0,
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 4,
"x": 0,
"y": 11
},
"id": 20,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"minSpan": 3,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"repeatDirection": "h",
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "probe_http_status_code{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "201, 399",
"title": "HTTP Status Code",
"transparent": false,
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
},
{
"op": "=",
"text": "YES",
"value": "1"
},
{
"op": "=",
"text": "N/A",
"value": "0"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 4,
"x": 0,
"y": 13
},
"id": 27,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "probe_http_version{instance=~\"$target\"}",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"title": "HTTP Version",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#d44a3a",
"rgba(237, 129, 40, 0.89)",
"#299c46"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 4,
"x": 0,
"y": 15
},
"id": 18,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"minSpan": 3,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"repeatDirection": "v",
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "probe_http_ssl{instance=~\"$target\"}",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "0, 1",
"title": "SSL",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
},
{
"op": "=",
"text": "YES",
"value": "1"
},
{
"op": "=",
"text": "NO",
"value": "0"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#d44a3a",
"rgba(237, 129, 40, 0.89)",
"#299c46"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"decimals": 2,
"format": "dtdurations",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 10,
"x": 4,
"y": 15
},
"id": 19,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"minSpan": 3,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"repeatDirection": "h",
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "probe_ssl_earliest_cert_expiry{instance=~\"$target\"} - time()",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "0,1209600",
"timeFrom": null,
"title": "SSL Expiry",
"transparent": false,
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
},
{
"op": "=",
"text": "YES",
"value": "1"
},
{
"op": "=",
"text": "NO",
"value": "0"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"format": "s",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 5,
"x": 14,
"y": 15
},
"id": 23,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "avg(probe_duration_seconds{instance=~\"$target\"})",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"title": "Average Probe Duration",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"format": "s",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 2,
"w": 5,
"x": 19,
"y": 15
},
"id": 24,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"repeat": null,
"repeatDirection": "h",
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "avg(probe_dns_lookup_time_seconds{instance=~\"$target\"})",
"format": "time_series",
"interval": "$interval",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"title": "Average DNS Lookup",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
}
],
"refresh": "10s",
"schemaVersion": 16,
"style": "dark",
"tags": [
"blackbox",
"prometheus"
],
"templating": {
"list": [
{
"auto": true,
"auto_count": 10,
"auto_min": "10s",
"current": {
"text": "10s",
"value": "10s"
},
"hide": 0,
"label": "Interval",
"name": "interval",
"options": [
{
"selected": false,
"text": "auto",
"value": "$__auto_interval_interval"
},
{
"selected": false,
"text": "5s",
"value": "5s"
},
{
"selected": true,
"text": "10s",
"value": "10s"
},
{
"selected": false,
"text": "30s",
"value": "30s"
},
{
"selected": false,
"text": "1m",
"value": "1m"
},
{
"selected": false,
"text": "10m",
"value": "10m"
},
{
"selected": false,
"text": "30m",
"value": "30m"
},
{
"selected": false,
"text": "1h",
"value": "1h"
},
{
"selected": false,
"text": "6h",
"value": "6h"
},
{
"selected": false,
"text": "12h",
"value": "12h"
},
{
"selected": false,
"text": "1d",
"value": "1d"
},
{
"selected": false,
"text": "7d",
"value": "7d"
},
{
"selected": false,
"text": "14d",
"value": "14d"
},
{
"selected": false,
"text": "30d",
"value": "30d"
}
],
"query": "5s,10s,30s,1m,10m,30m,1h,6h,12h,1d,7d,14d,30d",
"refresh": 2,
"type": "interval"
},
{
"allValue": null,
"current": {},
"datasource": "${DS_SIGNCL-PROMETHEUS}",
"hide": 0,
"includeAll": true,
"label": null,
"multi": true,
"name": "target",
"options": [],
"query": "label_values(probe_success, instance)",
"refresh": 1,
"regex": "",
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
}
]
},
"time": {
"from": "now-1h",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
],
"time_options": [
"5m",
"15m",
"1h",
"6h",
"12h",
"24h",
"2d",
"7d",
"30d"
]
},
"timezone": "",
"title": "Prometheus Blackbox Exporter",
"uid": "xtkCtBkiz",
"version": 2
}
Настройка уведомлений, в случае проблем с каким-либо из URL:
groups:
- name: alert.rules
rules:
- alert: EndpointDown
expr: probe_success == 0
for: 10s
labels:
severity: "critical"
annotations:
summary: "Endpoint down"
description: HTTP status code is ""