雲原生監控系統Prometheus——Sprint Boot視覺化監控
Sprint Boot視覺化監控
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整合Spring Boot的Prometheus三劍客：Micrometer + Prometheus + Grafana
一、用Micrometer儀表化JVM應用
Micrometer（千分尺）是 Pivotal 為最流行的監控系統提供的一個簡單的儀表客戶端門面模式，允許儀表化 JVM 應用，而無須關心是哪個供應商提供的指標。
官網：https://micrometer.io/
As an instrumentation facade, Micrometer allows you to instrument your code with dimensional metrics with a vendor-neutral interface and decide on the monitoring system as a last step. Instrumenting your core library code with Micrometer allows the libraries to be included in applications that ship metrics to different backends.
Contains built-in support forAppOptics,Azure Monitor, NetflixAtlas,CloudWatch,Datadog,Dynatrace,Elastic,Ganglia,Graphite,Humio,Influx/Telegraf,JMX,KairosDB,New Relic,Prometheus,SignalFx, GoogleStackdriver,StatsD, andWavefront.
Spring Boot 2.x 在 spring-boot-actuator 中引入了 Micrometer。Spring Boot 2.x 對 Spring Boot 1.x 的指標進行了重構，從https://micrometer.io 官網可以看到，Micrometer 也支援對接其他監控系統。Micrometer 和 Spring Boot、Prometheus 的橋接關係如下圖：