安装prometheus

服务器

ip	系统	配置	目录	部署版本
172.24.32.200	centos7.7	2c4g	/data/prometheus	2.18

1、部署prometheus

创建目录，下载文件

mkdir -p /data/prometheus && cd /data/prometheus
wget https://github.com/prometheus/prometheus/releases/download/v2.18.1/prometheus-2.18.1.linux-amd64.tar.gz
wget https://github.com/prometheus/alertmanager/releases/download/v0.20.0/alertmanager-0.20.0.linux-amd64.tar.gz

tar zxf prometheus-2.18.1.linux-amd64.tar.gz&&mv prometheus-2.18.1.linux-amd64 prometheus

创建数据目录

mkdir -p /data/prometheus/prometheus/data
mkdir -p /data/prometheus/prometheus/rules

创建用户并授权

useradd prometheus
chown -R prometheus:prometheus /data/prometheus

添加启动项

cat>>/usr/lib/systemd/system/prometheus.service<<EOF
[Unit]
Description=Prometheus
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/data/prometheus/prometheus/prometheus --config.file=/data/prometheus/prometheus/prometheus.yml --storage.tsdb.path=/data/prometheus/prometheus/data
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

启动并设置为开机自启动

systemctl start prometheus
systemctl enable prometheus

2、部署alertmanager

cd /data/prometheus
mv alertmanager-0.20.0.linux-amd64 alertmanager
mkdir -p /data/prometheus/alertmanager/template
chown -R prometheus:prometheus /data/prometheus

添加启动项

cat>>/usr/lib/systemd/system/alertmanager.service<<EOF
[Unit]
Description=alertmanager
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/data/prometheus/alertmanager/alertmanager --config.file=/data/prometheus/alertmanager/alertmanager.yml 
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

启动并开机自启动

systemctl start alertmanager
systemctl enable alertmanager

3、部署node_export

mkdir -p /data/prometheus && cd /data/prometheus
wget https://github.com/prometheus/node_exporter/releases/download/v1.0.0-rc.1/node_exporter-1.0.0-rc.1.linux-amd64.tar.gz

tar zxf node_exporter-1.0.0-rc.1.linux-amd64.tar.gz
mv node_exporter-1.0.0-rc.1.linux-amd64 node_exporter
chown -R prometheus:prometheus /data/prometheus

添加启动项

cat>>/usr/lib/systemd/system/node_exporter.service<<EOF
[Unit]
Description=node_exporter
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/data/prometheus/node_exporter/node_exporter
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

启动并开机自启动

systemctl start node_exporter
systemctl enable node_exporter

验证下监控参数

curl 127.0.0.1:9100/metrics

vim /data/prometheus/prometheus/prometheus.yml

  - job_name: 'node'
    static_configs:
    - targets: ['172.24.32.200:9100']

热加载

查看targets查看监控

http://172.24.32.200:9090/targets

思考：采用file_sd_configs的方式加载配置