关于Prometheus + Spring Boot 应用监控的问题

<metric name>{<label name>=<label value>, ...}

api_http_requests_total{method="POST", handler="/messages"}

# Start Prometheus.
# By default, Prometheus stores its database in ./data (flag --storage.tsdb.path)

./prometheus --config.file=prometheus.yml

prometheus_target_interval_length_seconds

prometheus_target_interval_length_seconds{quantile="0.99"}

count(prometheus_target_interval_length_seconds)

tar -xzvf node_exporter-*.*.tar.gz
cd node_exporter-*.*

# Start 3 example targets in separate terminals:
./node_exporter --web.listen-address 127.0.0.1:8080
./node_exporter --web.listen-address 127.0.0.1:8081
./node_exporter --web.listen-address 127.0.0.1:8082

scrape_configs:
 - job_name:  'node'

 # Override the global default and scrape targets from this job every 5 seconds.
 scrape_interval: 5s

 static_configs:
  - targets: ['localhost:8080', 'localhost:8081']
  labels:
   group: 'production'

  - targets: ['localhost:8082']
  labels:
   group: 'canary'

./prometheus -h

global:
 # How frequently to scrape targets by default.
 [ scrape_interval: <duration> | default = 1m ]

 # How long until a scrape request times out.
 [ scrape_timeout: <duration> | default = 10s ]

 # How frequently to evaluate rules.
 [ evaluation_interval: <duration> | default = 1m ]

 # The labels to add to any time series or alerts when communicating with
 # external systems (federation, remote storage, Alertmanager).
 external_labels:
 [ <labelname>: <labelvalue> ... ]

 # File to which PromQL queries are logged.
 # Reloading the configuration will reopen the file.
 [ query_log_file: <string> ]

# Rule files specifies a list of globs. Rules and alerts are read from
# all matching files.
rule_files:
 [ - <filepath_glob> ... ]

# A list of scrape configurations.
scrape_configs:
 [ - <scrape_config> ... ]

# Alerting specifies settings related to the Alertmanager.
alerting:
 alert_relabel_configs:
 [ - <relabel_config> ... ]
 alertmanagers:
 [ - <alertmanager_config> ... ]

# Settings related to the remote write feature.
remote_write:
 [ - <remote_write> ... ]

# Settings related to the remote read feature.
remote_read:
 [ - <remote_read> ... ]

<dependency>
 <groupId>io.micrometer</groupId>
 <artifactId>micrometer-registry-prometheus</artifactId>
 <version>1.6.4</version>
</dependency> 

scrape_configs:
 - job_name: 'spring'
 metrics_path: '/actuator/prometheus'
 static_configs:
  - targets: ['HOST:PORT']

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.4.3</version>
  <relativePath/> <!-- lookup parent from repository -->
 </parent>
 <groupId>com.cjs.example</groupId>
 <artifactId>prometheus-example</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <name>prometheus-example</name>
 <description>Demo project for Spring Boot</description>
 <properties>
  <java.version>1.8</java.version>
 </properties>
 <dependencies>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-actuator</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
  </dependency>

  <dependency>
   <groupId>io.micrometer</groupId>
   <artifactId>micrometer-registry-prometheus</artifactId>
   <scope>runtime</scope>
  </dependency>
 </dependencies>

 <build>
  <plugins>
   <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
   </plugin>
  </plugins>
 </build>

</project> 

spring:
 application:
 name: prometheus-example
management:
 endpoints:
 web:
  exposure:
  include: "*"
 metrics:
 tags:
  application: ${spring.application.name}

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']
 
 - job_name: 'springboot-prometheus'
 metrics_path: '/actuator/prometheus'
 static_configs:
  - targets: ['192.168.100.93:8080'] 

./prometheus --config.file=prometheus.yml

wget https://dl.grafana.com/oss/release/grafana-7.4.3.linux-amd64.tar.gz
tar -zxvf grafana-7.4.3.linux-amd64.tar.gz 

./bin/grafana-server web