centos7安装配置prometheus

以你之姓@ 2021-10-20 00:38 475阅读 0赞

# centos7安装配置prometheus #

## 更新系统&禁用selinux ##

yum update -y
    sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
    #reboot

## 下载prometheus安装包 ##

*  去官网下载地址下载相关软件包：https://prometheus.io/download/

# 执行下面命令下载
    wget https://github.com/prometheus/prometheus/releases/download/v2.12.0/prometheus-2.12.0.linux-amd64.tar.gz

## 配置prometheus ##

*  添加用户prometheus

useradd --no-create-home --shell /bin/false prometheus

*  创建必要的目录

mkdir /etc/prometheus
    mkdir /var/lib/prometheus

*  改变目录权限

chown prometheus:prometheus /etc/prometheus
    chown prometheus:prometheus /var/lib/prometheus

*  移动到下载Prometheus的目录，解压Prometheus

tar -xvzf prometheus-2.8.1.linux-amd64.tar.gz
    mv prometheus-2.8.1.linux-amd64 prometheuspackage

*  将“prometheus”和“promtool”二进制文件从“prometheuspackage”文件夹复制到“/usr/local/bin”

cp prometheuspackage/prometheus /usr/local/bin/
    cp prometheuspackage/promtool /usr/local/bin/

*  更改prometheus/promtool属主

chown prometheus:prometheus /usr/local/bin/prometheus
    chown prometheus:prometheus /usr/local/bin/promtool

*  将“consoles”和“console\_libraries”目录从“prometheuspackage”复制到“/etc/prometheus文件夹”

cp -r prometheuspackage/consoles /etc/prometheus
    cp -r prometheuspackage/console_libraries /etc/prometheus

*  将所有权更改为Prometheus用户

chown -R prometheus:prometheus /etc/prometheus/consoles
    chown -R prometheus:prometheus /etc/prometheus/console_libraries

*  添加和修改Prometheus配置文件

vim /etc/prometheus/prometheus.yml
    
    # 将以下配置添加到该文件中
    global:
      scrape_interval: 10s
    
    scrape_configs:
      - job_name: 'prometheus_master'
        scrape_interval: 5s
        static_configs:
          - targets: ['localhost:9090']
    
    # 更改文件的所有权
    chown prometheus:prometheus /etc/prometheus/prometheus.yml

*  配置Prometheus service

vim /etc/systemd/system/prometheus.service
    
    # 将以下内容复制到该文件
    [Unit]
    Description=Prometheus
    Wants=network-online.target
    After=network-online.target
    
    [Service]
    User=prometheus
    Group=prometheus
    Type=simple
    ExecStart=/usr/local/bin/prometheus \
    --config.file /etc/prometheus/prometheus.yml \
    --storage.tsdb.path /var/lib/prometheus/ \
    --web.console.templates=/etc/prometheus/consoles \
    --web.console.libraries=/etc/prometheus/console_libraries
    
    [Install]
    WantedBy=multi-user.target

*  重新加载systemd服务&启动

systemctl daemon-reload
    # 启动
    systemctl start prometheus
    # 查看状态
    systemctl status prometheus

*  如果需要，添加防火墙规则

firewall-cmd --zone=public --add-port=9090/tcp --permanent
    systemctl reload firewalld

## 访问Prometheus Web界面 ##

*  使用以下Url访问UI

http://Server-IP:9090/graph

## 使用Prometheus监控Linux服务器 ##

*  需要在Linux服务器上配置Prometheus node exporter

# 下载
    wget https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz

*  解压node\_exporter并进行相关配置

tar -xvzf node_exporter-0.17.0.linux-amd64.tar.gz
    
    # 为node_exporter创建用户
    useradd -rs /bin/false nodeusr
    
    # 移动二进制文件
    mv node_exporter-0.17.0.linux-amd64/node_exporter /usr/local/bin/

*  为节点导出器创建服务文件

vim /etc/systemd/system/node_exporter.service
    
    # 将以下内容添加到该文件中
    [Unit]
    Description=Node Exporter
    After=network.target
    
    [Service]
    User=nodeusr
    Group=nodeusr
    Type=simple
    ExecStart=/usr/local/bin/node_exporter
    
    [Install]
    WantedBy=multi-user.target

*  重新加载系统守护程序

systemctl daemon-reload
    systemctl start node_exporter
    systemctl enable node_exporter

*  如果有需要，添加防火墙规则

firewall-cmd --zone=public --add-port=9100/tcp --permanent
    systemctl restart firewalld

*  查看指标浏览节点导出程序URL

http://IP-Address:9100/metrics

*  在Prometheus Server上添加已配置的节点导出程序Target

vim /etc/prometheus/prometheus.yml
    
    # 在scrape配置下添加以下配置
     - job_name: 'node_exporter_centos'
        scrape_interval: 5s
        static_configs:
          - targets: ['10.94.10.209:9100']

*  重启Prometheus服务

systemctl restart prometheus

*  登录Prometheus服务器Web界面，并检查目标

http://Prometheus-Server-IP:9090/targets