5分钟部署Prometheus+Grafana批量监控Linux服务器

给你送挂来了，宝~~

详细讲解如何在 Linux 服务器上使用 Docker 容器快速部署 Prometheus 和 Grafana 监控系统，同时通过 node_exporter 采集全面的系统性能数据。整个流程涵盖了从环境配置到搭建一个全面监控平台的每个步骤

1，一键安装Node Exporter

Node Exporter 是 Prometheus 生态系统中的一个关键组件，它专门用于收集和导出 Linux 系统的硬件和操作系统指标，如 CPU 使用率、内存利用率、磁盘 IO、网络统计等。这些数据可以帮助你深入了解服务器的性能表现，从而提高系统的监控和管理效率。

该服务所有需要监控的服务器安装，属于数据采集Agent。

下面是一键安装的脚本，脚本设置了国内加速

#!/bin/bash

# 定义变量
URL="https://mirror.ghproxy.com/https://github.com/prometheus/node_exporter/releases/download/v1.8.2/node_exporter-1.8.2.linux-amd64.tar.gz"
TAR_FILE="node_exporter-1.8.2.linux-amd64.tar.gz"
DIR_NAME="node_exporter-1.8.2.linux-amd64"
LISTEN_PORT="9100"

# 下载文件
echo "Downloading $TAR_FILE..."
wget -c $URL -O $TAR_FILE
if [ $? -ne 0 ]; then
echo "Error: Failed to download $TAR_FILE."
exit 1
fi

# 解压文件
echo "Extracting $TAR_FILE..."
tar -zxvf $TAR_FILE
if [ $? -ne 0 ]; then
echo "Error: Failed to extract $TAR_FILE."
exit 1
fi

# 进入解压后的目录
echo "Changing directory to $DIR_NAME..."
cd $DIR_NAME
if [ $? -ne 0 ]; then
echo "Error: Failed to change directory to $DIR_NAME."
exit 1
fi

# 后台运行 node_exporter
echo "Starting node_exporter on port $LISTEN_PORT..."
nohup ./node_exporter --web.listen-address=":$LISTEN_PORT" > node_exporter.stdout 2>&1 &
if [ $? -ne 0 ]; then
echo "Error: Failed to start node_exporter."
exit 1
fi

echo "node_exporter started successfully and is listening on port $LISTEN_PORT."

2，安装prometheus

创建数据存储目录

mkdir /data/prometheus_data && chmod 777 /data/prometheus_data

创建配置文件

将需要监控的节点和添加进配置文件

- job_name: "node_exporter"
    static_configs:
      - targets:
        - "192.168.1.12:9100"
        - "192.168.1.13:9100"
        - "192.168.1.14:9100"
        - "192.168.1.15:9100"
        - "192.168.1.3:9100"
        - "192.168.1.4:9100"
        - "192.168.1.5:9100"
        - "192.168.1.6:9100"
        - "192.168.1.7:9100"

完整的配置文件内容为：

# my global config
global:
  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

# Alertmanager configuration
alerting:
  alertmanagers:
    - static_configs:
        - targets:
          # - alertmanager:9093

# Load rules once and periodically evaluate them according to the global "evaluation_interval".
rule_files:
  # - "first_rules.yml"
  # - "second_rules.yml"

# A scrape configuration containing exactly one endpoint to scrape:
# Here it"s Prometheus itself.
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: "prometheus"
    static_configs:
      - targets: ["localhost:9090"]

  - job_name: "node_exporter"
    static_configs:
      - targets:
        - "192.168.1.12:9100"
        - "192.168.1.13:9100"
        - "192.168.1.14:9100"
        - "192.168.1.15:9100"
        - "192.168.1.3:9100"
        - "192.168.1.4:9100"
        - "192.168.1.5:9100"
        - "192.168.1.6:9100"
        - "192.168.1.7:9100"

tips:这里格式一定要对齐，否则可能会启动失败

设置配置文件权限

chmod 777 /etc/prometheus.yml

下载运行Prometheus

下载运行服务：

docker run -d \
  --name=prometheus \
  -p 9090:9090 \
  -v /etc/prometheus.yml:/etc/prometheus/prometheus.yml \
  -v /data/prometheus_data:/prometheus \
  --restart always \
  prom/prometheus

如果拉取不了可以用下面这个：

docker run -d \
  --name=prometheus \
  -p 9090:9090 \
  -v /etc/prometheus.yml:/etc/prometheus/prometheus.yml \
  -v /data/prometheus_data:/prometheus \
  --restart always \
  registry.cn-hangzhou.aliyuncs.com/jast-docker/prometheus:latest

访问：http://localhost:9090 验证是否启动生效

3，安装Grafana

创建数据目录

mkdir -p grafana/data

下载运行Grafana

docker run -d -p 3000:3000 --name=grafana \
  --user "$(id -u)" \
  --volume "$PWD/grafana/data:/var/lib/grafana" \
  grafana/grafana

上面的如果用不了，用下面的国内镜像

docker run -d -p 3000:3000 --name=grafana \
  --user "$(id -u)" \
  --restart always \
  --volume "$PWD/grafana/data:/var/lib/grafana" \
  registry.cn-hangzhou.aliyuncs.com/jast-docker/grafana:latest

运行完成访问: http://localhost:3000

配置Grafana监控Linux服务器

默认账号密码admin/admin