docker部署springboot项目

本篇是手动上传的，Harbor中有自动上传

创建项目

• pom.xml

  <?xml version="1.0" encoding="UTF-8"?>
  <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>
  ​
      <properties>
          <java.version>1.8</java.version>
          <docker.image.prefix>topcheer</docker.image.prefix>
      </properties>
  ​
      <dependencies>
          <dependency>
              <groupId>org.springframework.boot</groupId>
              <artifactId>spring-boot-starter-web</artifactId>
          </dependency>
  ​
          <dependency>
              <groupId>org.springframework.boot</groupId>
              <artifactId>spring-boot-starter-test</artifactId>
              <scope>test</scope>
          </dependency>
      </dependencies>
  ​
      <build>
          <plugins>
              <plugin>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-maven-plugin</artifactId>
              </plugin>
               <plugin>
              <groupId>com.spotify</groupId>
              <artifactId>docker-maven-plugin</artifactId>
              <version>1.0.0</version>
              <configuration>
                  <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
                  <dockerDirectory>src/main/docker</dockerDirectory>
                  <resources>
                      <resource>
                          <targetPath>/</targetPath>
                          <directory>${project.build.directory}</directory>
                          <include>${project.build.finalName}.jar</include>
                      </resource>
                  </resources>
              </configuration>
          </plugin>
          </plugins>
      </build>
  ​
  </project>

  ​

• 启动类

  @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
  ​
   ---> 1779caa23f77
  Removing intermediate container 16441febc271
  Step 5/6 : EXPOSE 8080
   ---> Running in 14dd752ce247
   ---> 505044f5cdf8
  Removing intermediate container 14dd752ce247
  Step 6/6 : ENTRYPOINT java -Djava.security.egd=file:/dev/./urandom -jar /app.jar
   ---> Running in 832e4ca95dd2
   ---> 1cb7bd139478
  Removing intermediate container 832e4ca95dd2
  Successfully built 1cb7bd139478
  [root@topcheer docker]# docker images
  REPOSITORY                                             TAG                 IMAGE ID            CREATED              SIZE
  boot                                                   latest              1cb7bd139478        About a minute ago   677 MB
  registry.cn-hangzhou.aliyuncs.com/dalianpai/topcheer   zipkin              17c2bb09f482        6 days ago           154 MB
  docker.io/mysql                                        latest              c8ee894bd2bd        11 days ago          456 MB
  elasticsearch                                          latest              874179f19603        4 weeks ago          771 MB
  docker.io/nacos/nacos-server                           latest              a4229ac5cc19        4 weeks ago          710 MB
  springbootdemo4docker                                  latest              cd13bc7f56a0        5 weeks ago          678 MB
  docker.io/tomcat                                       latest              ee48881b3e82        6 weeks ago          506 MB
  docker.io/rabbitmq                                     latest              a00bc560660a        6 weeks ago          147 MB
  docker.io/centos                                       latest              67fa590cfc1c        2 months ago         202 MB
  docker.io/redis                                        latest              f7302e4ab3a8        2 months ago         98.2 MB
  docker.io/rabbitmq                                     3.7.16-management   3f92e6354d11        3 months ago         177 MB
  docker.io/elasticsearch                                6.8.0               d0b291d7093b        5 months ago         895 MB
  docker.io/hello-world                                  latest              fce289e99eb9        10 months ago        1.84 kB
  docker.io/java                                         8                   d23bdf5b1b1b        2 years ago          643 MB
  [root@topcheer docker]# docker run -d -p 8080:8080 boot
  882ff5209aa2f40972a914b901750a50320faea65100b33e57b9c8a41533ca0b

  测试