prometheus+grafana 安装和配置

prometheus 安装

• 从 prometheus 官网下载：下载地址

• cd /opt
  wget -c https://github.com/prometheus/prometheus/releases/download/v2.9.2/prometheus-2.9.2.linux-amd64.tar.gz
  tar xzf *.linux-amd64.tar.gz
  rm -f *.linux-amd64.tar.gz
  mv prometheus* prometheus
  

• 设置prometheus启动账号并赋权

  groupadd prometheus
  useradd -g prometheus -s /sbin/nologin prometheus
  chown -R prometheus:prometheus /opt/prometheus/
  

• 创建prometheus data目录并赋权

  mkdir -p /opt/prometheus/data
  chown -R prometheus:prometheus /opt/prometheus/data
  

• 设置开机自启动

  cat > /usr/lib/systemd/system/prometheus.service << 'EOF'
  [Unit]
  Description=Prometheus
  Documentation=https://prometheus.io/
  After=network.target
  [Service]
  # Type设置为notify时，服务会不断重启
  Type=simple
  User=prometheus
  # --storage.tsdb.path是可选项，默认数据目录在运行目录的./dada目录中
  ExecStart=/opt/prometheus/prometheus --config.file=/opt/prometheus/prometheus.yml --storage.tsdb.path=/opt/prometheus/data
  Restart=on-failure
  [Install]
  WantedBy=multi-user.target
  EOF
  
  systemctl daemon-reload
  systemctl start prometheus
  systemctl enable prometheus
  

grafana 安装

• 从 grafana 官网下载：下载地址

  cd /opt
  wget https://dl.grafana.com/oss/release/grafana-6.1.6.linux-amd64.tar.gz 
  tar -zxf grafana-6.1.6.linux-amd64.tar.gz
  rm -f *.linux-amd64.tar.gz
  mv grafana* grafana
  

• 设置开机自启动

  cat > /usr/lib/systemd/system/grafana-server.service << 'EOF'
  [Unit]
  Description=Grafana
  After=network.target
  [Service]
  Type=notify
  ExecStart=/opt/grafana/bin/grafana-server -homepath /opt/grafana
  Restart=on-failure
  [Install]
  WantedBy=multi-user.target
  EOF
  
  systemctl daemon-reload
  systemctl start grafana-server
  systemctl enable grafana-server
  

关联prometheus 和 grafana

• 登录grafana，默认端口：3000，默认账号密码：admin/admin

• 添加prometheus数据源到grafana

• 导入dashboard模板8919 1860 这两个模板比较常用

prometheus node安装

• 从 prometheus 官网下载：下载地址

• cd /opt
  wget -c https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz
  tar xzf *.linux-amd64.tar.gz
  rm -f *.linux-amd64.tar.gz
  mv node_exporter* node_exporter
  

• 创建prometheus启动账号并赋权

  groupadd node_exporter
  useradd -g node_exporter -s /sbin/nologin node_exporter
  chown -R node_exporter:node_exporter /opt/node_exporter/
  

• 设置开机自启动

  cat > /usr/lib/systemd/system/node_exporter.service << 'EOF'
  [Unit]
  Description=node_exporter
  After=network.target
  [Service]
  Type=simple
  User=node_exporter
  ExecStart=/opt/node_exporter/node_exporter
  Restart=on-failure
  [Install]
  WantedBy=multi-user.target
  EOF
  
  systemctl daemon-reload
  systemctl start node_exporter
  systemctl enable node_exporter
  

• 添加node到prometheus

  • 到prometheus机器，在配置文件scrape_configs:标签下添加以下内容

    - job_name: 'xxxx'
      static_configs:
      - targets: ['192.168.xxx.xxx:9100']
  

  • 重启prometheus

• 登录grafana，查看效果