prometheus 简单例子 prometheus

1.node_exporter 用户密码验证访问

yum install httpd-toolshtpasswd -nB "prometheus"[root@node3 node_exporter]# htpasswd -nB "prometheus" New password: Re-type new password: prometheus:$2y$05$TsMfhNUmHVD8PYmrAvWcNO5lisOfL25.5ybV0Z7t4NF43Aq1IennO

node_exporter web.config.yaml

basic_auth_users: prometheus: $2y$05$TsMfhNUmHVD8PYmrAvWcNxO5OxfL25x.5ybV0Z7t4NF43Aq1IennO

启动node_exporter

./node_exporter --web.config=web.config.yaml

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设置node_exporter.service

[Unit] Descriptiong=node_exporter Documentation= After=network.target[Service] WorkingDirectory=/opt/node_exporter/ ExecStart=/opt/node_exporter/node_exporter --web.config=/opt/node_exporter/web.config.yaml ExecStop=/bin/kill -KILL $MAINPID Type=simple KillMode=control-group RestartSec=3s[Install] WantedBy=multi-user.target

重新加载systemd

systemctl daemon-reload

2.将node_exporter加入到prometheus prometheus.yml

scrape_configs: # The job name is added as a label `job=` to any timeseries scraped from this config. - job_name: 'prometheus'# metrics_path defaults to '/metrics' # scheme defaults to 'http'.static_configs: - targets: ['localhost:9090'] - job_name: 'node' basic_auth: username: prometheus password: 123456 static_configs: - targets: ['localhost:9100']

检查配置文件是否正确

./promtool check config prometheus.yml

加入成功

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alertmanager

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定义prometheus 规则 prometheus.yml

rule_files: - "rules/*.yml"

rules/target.yml

groups: - name: targetdown rules: - alert: target is down expr: up == 0 for: 1m

检查rules/target.yml

./promtool check rules rulues/target.yml[root@node3 prometheus]# ./promtool check rules rule/target.yml Checking rule/target.yml SUCCESS: 1 rules found

prometheus 详细配置地址
【prometheus 简单例子】https://prometheus.io/docs/pr...