文章目录
安装Prometheus
官方文档请参考：Prometheus：https://prometheus.io/
1.下载地址：https://github.com/prometheus/prometheus/releases
wget https://github.com/prometheus/prometheus/releases/downloa d/v2.33.0/prometheus-2.33.0-rc.1.linux-amd64.tar.gz
2.解压安装包
tar -zxvf prometheus-2.33.0.linux-amd64.tar.gz
3.设置软连接
ln -s /usr/local/prometheus-2.33.0.linux-amd64 /usr/local/prometheus
4.设置systemd服务
cat <<EOF > /usr/lib/systemd/system/prometheus.service
[Unit]
Description=prometheus
After=network.target
[Service]
Type=simple
User=root
ExecStart=/usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml --storage.tsdb.path=/usr/local/prometheus/data/ --web.enable-lifecycle --storage.tsdb.retention.time=30d
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
- –config.file: 指定配置文件
- –web.enable-lifecycle: 支持通过http请求重载配置
- –storage.tsdb.path:指定数据存储目录（默认当前目录的的data目录，若不存在则新建）
- –storage.tsdb.retention.time: 指定数据保留时间（默认15d）
5.启动服务
systemctl daemon-reload
systemctl start prometheus
systemctl status prometheus && systemctl enable prometheus
6.确认端口已经被监听
ss -lantp | grep 9090
浏览器访问：localhost:9090
健康检查
curl http://localhost:9090/-/healthy
检查是否启动
curl http://localhost:9090/-/ready
通过web接口重载，启动时需增加选项 --web.enable-lifecycle
curl -XPOST http://localhost:9090/-/reload
安装Grafana
1.下载安装包并配置
wget https://dl.grafana.com/oss/release/grafana-7.1.4-1.x86_64.rpm
yum -y install grafana-7.1.4-1.x86_64.rpm
2.配置启动
systemctl daemon-reload
systemctl enable grafana-server && systemctl start grafana-server
3.检查端口
ss -lantp | grep 3000
Grafana添加Prometheus数据源
- 访问grafana的3000端口进行登录，默认用户名和密码为: admin/admin
安装node_exporter
node_exporter用于收集主机运行信息，比如CPU、内存、磁盘等资源使用情况。
常用exporter清单：https://prometheus.io/docs/instrumenting/exporters/
cd /usr/local
wget https://github.com/prometheus/node_exporter/releases/download/v1.0.1/node_exporter-1.0.1.linux-amd64.tar.gz
解压并配置
tar -zxvf node_exporter-1.0.1.linux-amd64.tar.gz
ln -s node_exporter-1.0.1.linux-amd64 node_exporter
添加systemd 启动
cat > /usr/lib/systemd/system/node_exporter.service <<EOF
[Unit]
Description=node_exporter
After=network.target
[Service]
Type=simple
User=root
ExecStart=/usr/local/node_exporter/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable node_exporter && systemctl start node_exporter
systemctl status node_exporter
查看监听端口
ss -lantp | grep 9100
调整Prometheus获取主机及应用监控数据
vim /usr/local/prometheus/prometheus.yml
增加以下配置，其中job_name为自定义
- job_name: 'agent1'
static_configs:
- targets: ['localhost:9100']
重载Prometheus配置文件
curl -XPOST http://localhost:9090/-/reload
使用Grafana添加图形，便于展示！（监控Linux主机推荐使用9276模板）！
生成效果如图
监控Linux主机强烈推荐使用8919模板！该模板获取主机的指标更加的详细！
