Prometheus+Grafana监控部署以kafka监控为例

一、背景

Prometheus是由SoundCloud开发的开源监控系统，由GO语言编写而成，采用Pull的方式来获取监控信息，并且提供了多维度的数据模型和灵活的查询接口。Prometheus既支持通过静态文件配置监控对象，还支持自动发现机制，能通过Kubernetes、Consl、DNS等多种方式动态获取监控对象。在数据采集方面，借助GO语言高并发的特性，一个Prometheus设备可以采集数百个节点的监控数据；在数据存储方面，单机Prometheus支持每秒10^6个指标采集，并且还支持大量存储场景下的远程存储。

二、安装prometheus

1、下载二进制对应系统的安装包安装

到prometheus官网下载对应系统对应版本的安装包并上传至服务器，如图所示

2、解压缩并改名

tar-zxvf prometheus-2.41.0.linux-amd64.tar.gz -C /home/server/
mv prometheus-2.41.0.linux-amd64 prometheus
cd promethues

3、配置监控的信息

这里以kafka监控为例

第一步 配置监控信息

vim prometheus.yml
# 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"# metrics_path defaults to '/metrics'# scheme defaults to 'http'.#kafka集群监控
   - job_name: 'kafka'
     static_configs:
      - targets: ['172.17.9.191:9308']

第二步 启动prometheus服务

/home/server/prometheus/prometheus --config.file="/home/server/prometheus/prometheus.yml"&

在浏览器输入ip:9090，如图所示

第三步 配置启停服务

#编辑prometheus.service服务vim /lib/systemd/system/prometheus.service

[Unit]Description=https://prometheus.io
[Service]Restart=on-failure
ExecStart=/home/server/prometheus/prometheus --storage.tsdb.path=/home/server/prometheus/data --config.file=/home/server/prometheus/prometheus.yml --storage.tsdb.retention.time=50d
[Install]WantedBy=multi-user.target

#重载系统服务配置
systemctl daemon-reload
#杀掉原先启动的prometheus进程ps-ef|grep prometheus |grep-vgrep|awk'{print $2}'|xargs-I'{}'kill-9{}#用服务启动prometheus，停止使用stop
systemctl start prometheus.service
#查看prometheus服务状态
systemctl status prometheus.service
● prometheus.service - https://prometheus.io
   Loaded: loaded (/usr/lib/systemd/system/prometheus.service; disabled; vendor preset: disabled)
   Active: active (running) since 二 2022-12-20 17:17:43 CST; 7s ago
 Main PID: 15502(prometheus)
    Tasks: 6
   CGroup: /system.slice/prometheus.service
           └─15502 /home/server/prometheus/prometheus --storage.tsdb.path=/home/server/prometheus/data --config.file=/home/server/prometheus/prometheus.yml --storage.t...

12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.154Z caller=head.go:615 level=info component=tsdb msg="WAL segment loaded"segment=3maxSegment=512月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.185Z caller=head.go:615 level=info component=tsdb msg="WAL segment loaded"segment=4maxSegment=512月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.185Z caller=head.go:615 level=info component=tsdb msg="WAL segment loaded"segment=5maxSegment=512月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.185Z caller=head.go:621 level=info component=tsdb msg="WAL replay completed" checkpoint_re…=38.400998ms
12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.188Z caller=main.go:997 level=info fs_type=XFS_SUPER_MAGIC
12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.188Z caller=main.go:1000 level=info msg="TSDB started"12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.188Z caller=main.go:1181 level=info msg="Loading configuration file"filename=/home/server...etheus.yml
12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.189Z caller=main.go:1218 level=info msg="Completed loading of configuration file"filename=/home/ser…µs
12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.189Z caller=main.go:961 level=info msg="Server is ready to receive web requests."12月 2017:17:43 node04 prometheus[15502]: ts=2022-12-20T09:17:43.190Z caller=manager.go:941 level=info component="rule manager"msg="Starting rule manager..."
Hint: Some lines were ellipsized, use -l to show in full.

三、安装配置grafana面板

1、下载二进制对应系统的安装包安装

根据所用系统去选择下载命令：grafana官网下载

下载好后上传至服务器

2、解压缩并改名

tar-zxvf grafana-enterprise-9.3.2.linux-amd64.tar.gz -C /home/server
mv grafana-enterprise-9.3.2.linux-amd64 grafana
#或者用yum安装wget https://dl.grafana.com/enterprise/release/grafana-enterprise-9.3.2-1.x86_64.rpm
sudo yum install grafana-enterprise-9.3.2-1.x86_64.rpm

##添加到系统服务并启动
/sbin/chkconfig --add grafana_server
service grafana_server start
##访问地址：http://IP:3000
默认账户密码：admin/admin

grafana看板模板网站：grafana模板网站