springboot2+exporter+prometheus+grafana搭建监控体系

项目中需要监控系统指标(JVM,CPU,IO,MySQL等)，这时候可以使用Prometheus来做。如果是需要监控日志系统，可以使用ELK stack。监控=日志(ELK)+指标(Prometheus)。

step1 编写springboot2程序

org.springframework.boot

spring-boot-starter-actuator

io.micrometer

micrometer-registry-prometheus

step2 node_exporter安装：

在https://github.com/prometheus/node_exporter/releases找到最新的压缩包，然后wget，解压tar -zxvf到本地。执行：./mysqld_exporter

step3 mysql_exporter安装

在https://github.com/prometheus/mysqld_exporter找到最新的压缩包，然后wget，解压tar -zxvf到本地。详细安装参考官方文档。1 mysql创建新用户：CREATE USER 'exporter'@'localhost' IDENTIFIED BY 'XXXXXXXX' WITH MAX_USER_CONNECTIONS 3;GRANT PROCESS, REPLICATION CLIENT, SELECT ON . TO 'exporter'@'localhost';2设置环境变量：export DATA_SOURCE_NAME='user:password@(hostname:3306)/'3 启动./mysqld_exporter

先确保mysql启动和有my.cnf文件，然后执行：./mysqld_exporter

step4 prometheus安装和配置

下载最新版的prometheus安装和配置：wget https://github.com/prometheus/prometheus/releases/download/v2.8.0-rc.0/prometheus-2.8.0-rc.0.darwin-amd64.tar.gz解压到本地：先配置prometheus.yml文件，需要定义一系列job和targets以连接到step1-3中的组件。prometheus.yml 参考：

# 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=` to any timeseries scraped from this config.

- job_name: 'prometheus'

# metrics_path defaults to '/metrics'

# scheme defaults to 'http'.

static_configs:

- targets: ['localhost:9090']

- job_name: 'node'

static_configs:

- targets: ['localhost:9100']

- job_name: 'spring-boot'

metrics_path: /prometheus

static_configs:

- targets: ['localhost:8080']

- job_name: 'mysql-monitor'

static_configs:

- targets: ['localhost:9104']

编写好之后启动prometheus./prometheus --config.file=prometheus.yml

访问localhost:9090,查看targets看配置的监控是否正确：

springboot2+exporter+prometheus+grafana搭建监控体系

step5 grafana安装

wget https://dl.grafana.com/oss/release/grafana-6.0.1.darwin-amd64.tar.gz，tar -zxvf grafana-6.0.1.darwin-amd64.tar.gz./bin/grafana-server web

step6 自定义panel:jvm,mysql,cpu相关指数