Spring Boot Tutorial (11) Springboot program builds a docker image

Preparatory work

Environment:

• Linux environment or Mac, do not use Windows
• JDK 8
• Maven 3.0
• Docker

See Docker tutorial for no knowledge of Docker.

Create a Springboot Project

Introduce a web-based start-up dependency and create a controler:

@SpringBootApplication @restcontrollerpublic class Springbootwithdockerapplication {    @RequestMapping ("/")    Public String Home () {        return ' Hello Docker world ';    }    public static void Main (string[] args) {        springapplication.run (springbootwithdockerapplication.class, args);}    }

　　

Containerized the Springboot Project

Docker has a simple dockerfile file as a layer for the specified image. Let's first create a dockerfile file:

Src/main/docker/dockerfile:from Frolvlad/alpine-oraclejdk8:slimvolume/tmpadd Springboot-with-docker-0.0.1-snapshot.jar app.jarrun sh-c ' Touch/app.jar ' ENV java_opts= "" ENTRYPOINT ["sh", "-C", " Java $JAVA _opts-djava.security.egd=file:/dev/./urandom-jar/app.jar "]

　　

We build Docker images with Maven.

In Maven's POM catalog, plus the plug-in built with Docker images

<properties> <docker.image.prefix>springio</docker.image.prefix></properties><build > <plugins> <plugin> <groupId>com.spotify</groupId> &LT;ARTIFAC Tid>docker-maven-plugin</artifactid> <version>0.4.11</version> <configuratio N> <imageName>${docker.image.prefix}/${project.artifactId}</imageName> <do Ckerdirectory>src/main/docker</dockerdirectory> <resources> <resource&                        Gt <targetPath>/</targetPath> <directory>${project.build.directory}</directory&gt                        ; <include>${project.build.finalName}.jar</include> </resource> </res ources> </configuration> </plugin> </plugins></build>

　　

Note: ${docker.image.prefix} is your user name in the Docker's official repository, if you don't need to upload an image, just fill it out.

Through the MAVEN command:

First step: mvn clean

Step Two: MVN package Docker:bulid, as follows:

Step 2/6: volume/tmp-> Running in a98be3878053-> 8286e98b54c5 removing intermediate container a98be3878053 step 3/6: ADD springboot-with-docker-0.0.1-snapshot.jar app.jar-> c6ce13e50bbd removing intermediate container a303a3058869 Step 4/6: RUN sh-c ' Touch/app.jar ', Running in cf231afe700e-> 9a0ec8936c00 removing intermediate Container cf231afe700e Step 5/6: ENV java_opts "", Running in e192597fc881-> 2cb0d73bbdb0 removing intermediate Container e192597fc881 Step 6/6: entrypoint sh-c java $JAVA _opts-djava.security.egd=file:/dev/./urandom-jar/app.jar- > Running in ab85f53fcdd8-> 60fdb5c61692 removing intermediate container ab85f53fcdd8 successfully built 60fdb5c616 [INFO] Built Forezp/springboot-with-docker [INFO] ———————————————————————— [INFO] BUILD SUCCESS [INFO] —————————————— —————————— [INFO] Total time:01:45 min [info] finished at:2017-04-19t05:37:44-07:00 [INFO] Final memory:19m/48m [INFO] ————————————————————————

　　

The image was built successfully. To view the image:

docker images

Show:

Forezp/springboot-with-docker latest 60fdb5c61692 about a minute ago 195 MB

　　

Boot Image:

$ docker run-p 8080:8080-t Forezp/springboot-with-docker

　　

Open browser to access localhost:8080; Browser display: Hello Docker world.
Illustrates that Docker's Springboot project has been deployed.

To stop mirroring:

Docker Stop 60fdb5c61692

　　

To delete a mirror:

Docker RM 60fdb5c61692

　　

Source Source

Spring Boot Tutorial (11) Springboot program builds a docker image