springboot中Prometheus的简介及用法

<dependency>
	 <groupId>org.springframework.boot</groupId>
	 <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
		<groupId>io.micrometer</groupId>
		<artifactId>micrometer-registry-prometheus</artifactId>
</dependency>

server:
 port: 8081
spring:
 application:
  name: my-prometheus
management:
 endpoints:
  web:
   exposure:
    include: 'prometheus'
 metrics:
  tags:
   application: ${spring.application.name}

@RestController
public class TestController {
  Logger logger = LoggerFactory.getLogger(TestController.class);

  @GetMapping("/test")
  public String test() {
    logger.info("test");
    return "ok";
  }

  @GetMapping("")
  public String home() {
    logger.info("home");
    return "ok";
  }
}

# HELP jvm_gc_max_data_size_bytes Max size of old generation memory pool
# TYPE jvm_gc_max_data_size_bytes gauge
jvm_gc_max_data_size_bytes{application="my-prometheus",} 2.863661056E9
# HELP http_server_requests_seconds 
# TYPE http_server_requests_seconds summary
http_server_requests_seconds_count{application="my-prometheus",exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 1.0
http_server_requests_seconds_sum{application="my-prometheus",exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.018082327
# HELP http_server_requests_seconds_max 
# TYPE http_server_requests_seconds_max gauge
http_server_requests_seconds_max{application="my-prometheus",exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.018082327
# HELP jvm_threads_states_threads The current number of threads having NEW state
# TYPE jvm_threads_states_threads gauge
jvm_threads_states_threads{application="my-prometheus",state="waiting",} 12.0
jvm_threads_states_threads{application="my-prometheus",state="runnable",} 8.0
jvm_threads_states_threads{application="my-prometheus",state="timed-waiting",} 2.0
jvm_threads_states_threads{application="my-prometheus",state="terminated",} 0.0
jvm_threads_states_threads{application="my-prometheus",state="blocked",} 0.0
jvm_threads_states_threads{application="my-prometheus",state="new",} 0.0
# HELP process_files_open_files The open file descriptor count
# TYPE process_files_open_files gauge
...省略更多

wget https://github.com/prometheus/prometheus/releases/download/v2.19.2/prometheus-2.19.2.darwin-amd64.tar.gz
tar xvfz prometheus-*.tar.gz
cd prometheus-*

global:
 scrape_interval:   15s # By default, scrape targets every 15 seconds.

 # Attach these labels to any time series or alerts when communicating with
 # external systems (federation, remote storage, Alertmanager).
 external_labels:
  monitor: 'codelab-monitor'

# 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'

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

  static_configs:
   - targets: ['localhost:9090']
 - job_name: 'springboot_prometheus'
  scrape_interval: 5s
  metrics_path: '/actuator/prometheus'
  static_configs:
   - targets: ['127.0.0.1:8081']

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

wget https://dl.grafana.com/oss/release/grafana-7.0.4.darwin-amd64.tar.gz
tar -zxvf grafana-7.0.4.darwin-amd64.tar.gz
./grafana-server