Docker部署springboot项目实例解析

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<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>2.1.9.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>
  <groupId>com.topcheer</groupId>
  <artifactId>docker</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>docker</name>
  <description>Demo project for Spring Boot</description>
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@SpringBootApplication
@Controller
public class DockerApplication {
  public static void main(String[] args) {
    SpringApplication.run(DockerApplication.class, args);
  }
  @RequestMapping("/user/find")
  @ResponseBody
  public Object findUser(){
    Map<String, String > map = new HashMap<>();
    map.put("name", "xdclass.net");
    map.put("age","28");
    return map;
  }
}


由于harbor没有安装，无法把镜像推到私有镜像仓库上，所以先手动执行。
mvn install,然后把dockerfile和jar包放到一起


[root@topcheer docker]# ll
总用量 16452
-rw-r--r-- 1 root root   168 10月 28 14:24 Dockerfile
-rw-r--r-- 1 root root 16842487 10月 28 14:17 docker.jar
[root@topcheer docker]# cat Dockerfile
FROM java:8
VOLUME /tmp
ADD docker.jar app.jar
RUN bash -c 'touch /app.jar'
EXPOSE 8080
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
[root@topcheer docker]#


编译成镜像并启动


[root@topcheer docker]# docker build -f Dockerfile -t boot .
Sending build context to Docker daemon 16.85 MB
Step 1/6 : FROM java:8
 ---> d23bdf5b1b1b
Step 2/6 : VOLUME /tmp
 ---> Running in 35037b5a7791
 ---> e96b96457c78
Removing intermediate container 35037b5a7791
Step 3/6 : ADD docker.jar app.jar
 ---> 06bcfdcff437
Removing intermediate container 2e2e5e559ae4
Step 4/6 : RUN bash -c 'touch /app.jar'
 ---> Running in 16441febc271
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。