docker-compose builds Springboot project

Springboot project

Configuration information

spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.properties.hibernate.hbm2ddl.auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.show-sql=true

The main function

Count the number of client visits

@RestController
public class VisitorController {
    
    

    @Autowired
    private VisitorRepository repository;
	
    @RequestMapping("/")
    public String index(HttpServletRequest request) {
    
    
        String ip=request.getRemoteAddr();
        Visitor visitor=repository.findByIp(ip);
        if(visitor==null){
    
    
            visitor=new Visitor();
            visitor.setIp(ip);
            visitor.setTimes(1);
        }else {
    
    
            visitor.setTimes(visitor.getTimes()+1);
        }
        repository.save(visitor);
        return "我的IP "+visitor.getIp()+" 已经被访问了"+visitor.getTimes()+" 次了.";
    }
}

Dockerfile

FROM maven:3.5-jdk-8
COPY ./settings.xml /usr/share/maven/ref/

Springboot project using maven build, build process because the default is downloaded from the external network jar packets, according to the official website of explanation , custom setting.xml domestic source image file in the directory where Dockerfile and Dockerfile content plus COPY ./settings .xml /usr/share/maven/ref/ is fine.

Settings.xml configuration reference Alibaba open source mirror station

Mysql

Use mysql/mysql-server: 5.7

Web container (Nginx)

Use nginx: 1.13

Configuration information

server {
    
    
    listen 80;
    charset utf-8;
    access_log off;

    location / {
    
    
        proxy_pass http://app:8080;
        proxy_set_header Host $host:$server_port;
        proxy_set_header X-Forwarded-Host $server_name;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    location /static {
    
    
        access_log   off;
        expires      30d;

        alias /app/static;
    }
}

The service communication in a group of compose needs to use the name of services for access

docker-compose.yml

version: '3'
services:
  nginx:
   container_name: v-nginx
   image: nginx:1.13
   restart: always
   ports:
   - 80:80
   - 443:443
   volumes:
   - ./nginx/conf.d:/etc/nginx/conf.d
    
  mysql:
   container_name: v-mysql
   image: mysql/mysql-server:5.7
   environment:
    MYSQL_DATABASE: test
    MYSQL_ROOT_PASSWORD: root
    MYSQL_ROOT_HOST: '%'
   ports:
   - "3306:3306"
   restart: always
    
  app:
    restart: always
    build: ./app
    working_dir: /app
    volumes:
      - ./app:/app
      - ~/.m2:/root/.m2
    expose:
      - "8080"
    depends_on:
      - nginx
      - mysql
    command: mvn clean spring-boot:run -Dspring-boot.run.profiles=docker

ports: Use host ports to map container ports
expose: expose port
restart: always means that if the service starts unsuccessfully, it will always try (important)
volumes: Load the configuration file in the local directory to the container target address

Start/stop service and test

Start service

docker-compose up -d

test

Open the webpage http://ip_addr to
access the test

Close service

docker-compose down

reference

https://github.com/ityouknow/spring-boot-examples
http://www.ityouknow.com/springboot/2018/03/28/dockercompose-springboot-mysql-nginx.html