jmeter -- prometheus+grafana服务器性能可视化

1. Prometheus简介

• Prometheus是一个开源的系统监控和报警系统，用go语言开发，有各种exporter来收集服务器性能数据

2. Prometheus部署

• 添加配置文件

• 内容参照：https://github.com/prometheus/prometheus/blob/main/documentation/examples/prometheus.yml

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'.

    static_configs:
      - targets: ["localhost:9090"]

• 创建prometheus容器

docker run -d --name prometheus \
	--network grafana -p 9090:9090 \
	-v ${
    PWD}/prometheus.yml:/etc/prometheus/prometheus.yml \
	prom/prometheus:v2.16.0 --config.file=/etc/prometheus/prometheus.yml

• 查看监控状态

• 访问http://ip:9090/,选择Status–>Targets，即可查看监控的服务列表

3. node_exporter安装配置

• node_exporter安装

docker run -d --name node_exporter \
	-p 9100:9100 prom/node-exporter:v1.2.0

• 验证工具服务是否启动

• 访问http://ip:9100，验证

• prometheus配置添加被监控节点

vim prometheus.yml
scrape_configs:
  - job_name: "prometheus"
    static_configs:
      - targets: ["localhost:9090"]

  # add
  - job_name: "demo01"      
    static_configs:
      - targets: ["ip:9100"] # 不能是localhost

4. grafana可视化

• 创建容器（略）
• grafana配置数据源

>+ 访问grafana，http://ip:3000，默认账号密码：admin/admin
>+ 配置数据库：Add data source-->Prometheus-->
>   + Url: http://prometheus:9090(同容器Name和Port)
>   + Scrape interval:15s

• grafana导入Dashboard

>+ Import Dashboard
>   + Grafana.com Dashboard: 11174
>   + Name: Node Exporter for Prometheus
>   + Prometheus:Prometheus