spring cloud 使用nacos

nacos 文档地址：https://nacos.io/zh-cn/index.html

github地址：https://github.com/alibaba/nacos

demo 使用版本如下
spring boot 2.3.1
spring cloud Hoxton.SR6
nacos 1.3.1

POM引用

    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    </dependency>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Hoxton.SR6</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>2.2.1.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

配置信息

server:
  port: 8123
spring:
  application:
    name: nacos-test
  profiles:
    active: dev
  cloud:
    nacos:
      server-addr: ${server:localhost}:${port:8848}
      discovery:
        group: TEST_GROUP
      config:
        group: CF_GROUP
        name: imp
        file-extension: yaml

Application.java

@SpringBootApplication
@EnableDiscoveryClient
public class NacosTestApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosTestApplication.class, args);
    }
}

ControllerDemo.java

@RestController
@RefreshScope
@Slf4j
public class TestController {
 
    @Value("${oss.endpoint}")
    private String name;
 
    @GetMapping("/test")
    public String test(){
        log.info("name:" + name);
        return name;
    }
}

config 配置

image2020-7-30_10-22-58.png

discovery 注册结果

image2020-7-30_10-22-33.png

nacos 运维 nacos + Prometheus + Grafana

docker部署，官方文档地址：https://nacos.io/zh-cn/docs/quick-start-docker.html

使用docker部署时，做了些修改
docker-compose.yml

version: "2"
services:
  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos-standalone
    env_file:
      - ./nacos.env
    volumes:
    - ./standalone-logs/:/home/nacos/logs
    - ./init.d/custom.properties:/home/nacos/init.d/custom.properties
    ports:
    - "3848:8848"
  prometheus:
    container_name: prometheus
    image: prom/prometheus:latest
    volumes:
      - ./prometheus-standalone.yaml:/etc/prometheus/prometheus.yml
    ports:
      - "3090:9090"
    depends_on:
      - nacos
    restart: on-failure
  grafana:
    container_name: grafana
    image: grafana/grafana:latest
    ports:
      - 3000:3000
    restart: on-failure

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: ['10.228.81.30:3090']
 
  - job_name: 'nacos'
    metrics_path: '/nacos/actuator/prometheus'
    static_configs:
      - targets: ['10.228.81.30:3848']

nacos 启动参数 nacos.env

MODE=standalone
NACOS_SERVER_PORT=3848
SPRING_DATASOURCE_PLATFORM=mysql
MYSQL_SERVICE_HOST=10.228.81.19
MYSQL_SERVICE_PORT=38309
MYSQL_SERVICE_DB_NAME=nacos_config
MYSQL_SERVICE_USER=root
MYSQL_SERVICE_PASSWORD=Chenfan@123.com.cn..