Vultr教程：如何在Ubuntu 20.04上安装Prometheus服务器（ubuntu安装protobuf）

在Ubuntu 20.04上安装Prometheus服务器的步骤如下：

1、更新系统软件包列表

sudo apt update

2、安装必要的依赖项

sudo apt install y wget tar

3、下载并解压Prometheus

wget https://github.com/prometheus/prometheus/releases/download/v2.30.3/prometheus2.30.3.linuxamd64.tar.gz
tar xzf prometheus2.30.3.linuxamd64.tar.gz
cd prometheus2.30.3.linuxamd64

4、配置Prometheus

编辑prometheus.yml文件，设置监控目标和数据存储位置。

global:
  scrape_interval: 15s
  evaluation_interval: 15s
scrape_configs:
  job_name: 'prometheus'
    static_configs:
      targets: ['localhost:9090']

5、创建Prometheus服务文件

sudo nano /etc/systemd/system/prometheus.service

将以下内容粘贴到文件中：

[Unit]
Description=Prometheus Server
Wants=networkonline.target
After=networkonline.target
StartLimitIntervalSec=0
StartLimitBurst=6
[Service]
User=prometheus
Group=prometheus
Type=simple
ExecStart=/usr/local/bin/prometheus 
  config.file /path/to/your/prometheus.yml 
  storage.tsdb.path /path/to/your/data 
  web.console.libraries=/usr/share/prometheus/console_libraries 
  web.console.templates=/usr/share/prometheus/consoles 
  web.listenaddress=0.0.0.0:9090 
  storage.tsdb.minblockduration=1h 
  storage.tsdb.maxblockduration=2h 
Restart=onfailure 
RestartSec=5s 
[Install]
WantedBy=multiuser.target

将/path/to/your/prometheus.yml替换为实际的配置文件路径，将/path/to/your/data替换为实际的数据存储路径。

6、重新加载systemd配置并启动Prometheus服务

sudo systemctl daemonreload
sudo systemctl start prometheus

7、检查Prometheus服务状态

sudo systemctl status prometheus

如果看到"Active: active (running)"，则表示Prometheus已成功安装并运行。