blackbox_exporter是Prometheus 官方提供的 exporter 之一,可以提供 http、dns、tcp、icmp 的监控数据采集。 Blackbox_exporter 应用场景
定义 Request Header 信息 判断 Http status / Http Respones Header / Http Body 内容
业务组件端口状态监听 应用层协议定义与监听
主机探活机制
接口联通性
操作系统:centos 6.9
各个版本的blackbox_exporter https://github.com/prometheus/blackbox_exporter/releases 以linux系统为例,下载编译好的二进制包,解压使用:
wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.16.0/blackbox_exporter-0.16.0.linux-amd64.tar.gz
tar -zxvf blackbox_exporter-0.16.0.linux-amd64.tar.gz -C /data
mv /data/blackbox_exporter-0.16.0.linux-amd64 /data/blackbox_exporter
# cd /data/blackbox_exporter/
# ./blackbox_exporter --version
blackbox_exporter, version 0.16.0 (branch: HEAD, revision: 991f89846ae10db22a3933356a7d196642fcb9a9)
build user: root@64f600555645
build date: 20191111-16:27:24
go version: go1.13.4
nohup ./blackbox_exporter &
默认监听端口为9115
# ss -tunlp|grep 9115
tcp LISTEN 0 32768 *:9115 *:* users:(("blackbox_export",29880,3))
编辑prometheus配置文件
vi /data/prometheus/prometheus.yml
最后一行添加
- job_name: node_status
metrics_path: /probe
params:
module: [icmp]
static_configs:
- targets: ['10.165.94.31']
labels:
instance: node_status
group: 'node'
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- target_label: __address__
replacement: 172.19.155.133:9115
注意:10.165.94.31是被监控端ip,172.19.155.133是Blackbox_exporter
- job_name: 'prometheus_port_status'
metrics_path: /probe
params:
module: [tcp_connect]
static_configs:
- targets: ['172.19.155.133:8765']
labels:
instance: 'port_status'
group: 'tcp'
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 172.19.155.133:9115
- job_name: web_status
metrics_path: /probe
params:
module: [http_2xx]
static_configs:
- targets: ['http://www.baidu.com']
labels:
instance: user_status
group: 'web'
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- target_label: __address__
replacement: 172.19.155.133:9115
检查配置文件是否书写正确
cd /data/prometheus
./promtool check config prometheus.yml
重启prometheus
service restart prometheus
访问 http://127.0.0.1:9090/targets 查看加入的监控信息。
确保状态为 UP
此模板为9965号模板,数据源选择Prometheus 模板下载地址 https://grafana.com/grafana/dashboards/9965
此模板需要安装饼状图插件 下载地址 https://grafana.com/grafana/plugins/grafana-piechart-panel 安装插件,重启grafana生效。
grafana-cli plugins install grafana-piechart-panel
service grafana-server restart
访问 http://127.0.0.1:3000,查看数据。
本文参考链接: