Docker如何部署springboot项目

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创建项目

pom.xml

  4.0.0      org.springframework.boot    spring-boot-starter-parent    2.1.9.RELEASE         com.topcheer  docker  0.0.1-SNAPSHOT  docker  Demo project for Spring Boot      1.8    topcheer              org.springframework.boot      spring-boot-starter-web              org.springframework.boot      spring-boot-starter-test      test                          org.springframework.boot        spring-boot-maven-plugin                   com.spotify      docker-maven-plugin      1.0.0              ${docker.image.prefix}/${project.artifactId}        src/main/docker                              /            ${project.build.directory}            ${project.build.finalName}.jar                                  

启动类

@SpringBootApplication@Controllerpublic class DockerApplication {  public static void main(String[] args) {    SpringApplication.run(DockerApplication.class, args);  }  @RequestMapping("/user/find")  @ResponseBody  public Object findUser(){    Map 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 DockerfileFROM java:8VOLUME /tmpADD docker.jar app.jarRUN bash -c 'touch /app.jar'EXPOSE 8080ENTRYPOINT ["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 MBStep 1/6 : FROM java:8 ---> d23bdf5b1b1bStep 2/6 : VOLUME /tmp ---> Running in 35037b5a7791 ---> e96b96457c78Removing intermediate container 35037b5a7791Step 3/6 : ADD docker.jar app.jar ---> 06bcfdcff437Removing intermediate container 2e2e5e559ae4Step 4/6 : RUN bash -c 'touch /app.jar' ---> Running in 16441febc271 ---> 1779caa23f77Removing intermediate container 16441febc271Step 5/6 : EXPOSE 8080 ---> Running in 14dd752ce247 ---> 505044f5cdf8Removing intermediate container 14dd752ce247Step 6/6 : ENTRYPOINT java -Djava.security.egd=file:/dev/./urandom -jar /app.jar ---> Running in 832e4ca95dd2 ---> 1cb7bd139478Removing intermediate container 832e4ca95dd2Successfully built 1cb7bd139478[root@topcheer docker]# docker imagesREPOSITORY                       TAG         IMAGE ID      CREATED       SIZEboot                          latest       1cb7bd139478    About a minute ago  677 MBregistry.cn-hangzhou.aliyuncs.com/dalianpai/topcheer  zipkin       17c2bb09f482    6 days ago      154 MBdocker.io/mysql                    latest       c8ee894bd2bd    11 days ago     456 MBelasticsearch                     latest       874179f19603    4 weeks ago     771 MBdocker.io/nacos/nacos-server              latest       a4229ac5cc19    4 weeks ago     710 MBspringbootdemo4docker                 latest       cd13bc7f56a0    5 weeks ago     678 MBdocker.io/tomcat                    latest       ee48881b3e82    6 weeks ago     506 MBdocker.io/rabbitmq                   latest       a00bc560660a    6 weeks ago     147 MBdocker.io/centos                    latest       67fa590cfc1c    2 months ago     202 MBdocker.io/redis                    latest       f7302e4ab3a8    2 months ago     98.2 MBdocker.io/rabbitmq                   3.7.16-management  3f92e6354d11    3 months ago     177 MBdocker.io/elasticsearch                6.8.0        d0b291d7093b    5 months ago     895 MBdocker.io/hello-world                 latest       fce289e99eb9    10 months ago    1.84 kBdocker.io/java                     8          d23bdf5b1b1b    2 years ago     643 MB[root@topcheer docker]# docker run -d -p 8080:8080 boot882ff5209aa2f40972a914b901750a50320faea65100b33e57b9c8a41533ca0b

测试

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