springbot微服务打包docker镜像

1.新建springboot项目
2.打包项目
3.编写Dockerfile
4.构架镜像
5.发布运行
6.上传至私服
7.拉取私服镜像运行

1.新建springboot项目
通过idea创建一个项目，新建一个HelloController 并新增一个hello方法便与测试

package com.gblfy.hello.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {


    @GetMapping("hello")
    public String hello() {
        return "welcome gblfy.com";
    }
}

运行项目：访问localhost:8080/hello

请求是否返回​​welcome gblfy.com​​

2.打包项目

通过idea打包

or

cd

3.编写Dockerfile
在项目根路径下面创建Dockerfile

FROM java:8

COPY *.jar /app.jar

CMD ["--server.port=8080"]

EXPOSE 8080

ENTRYPOINT ["java","-jar","/app.jar"]

4.构构建镜像
在宿主机上新家一个目录idea（名称自定义）

将target下面打包好的项目jar（gblfy-hello-0.0.1-SNAPSHOT.jar）和项目根目录下面的Dockerfile文件上传至宿主机

开始构建镜像

docker build -t docker-gblfy-springboot:1.0 .

构建记录：

[root@harbor idea]# docker build -t docker-gblfy-springboot:1.0 .
Sending build context to Docker daemon  17.62MB
Step 1/5 : FROM java:8
8: Pulling from library/java
5040bd298390: Pull complete 
fce5728aad85: Pull complete 
76610ec20bf5: Pull complete 
60170fec2151: Pull complete 
e98f73de8f0d: Pull complete 
11f7af24ed9c: Pull complete 
49e2d6393f32: Pull complete 
bb9cdec9c7f3: Pull complete 
Digest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d
Status: Downloaded newer image for java:8
 ---> d23bdf5b1b1b
Step 2/5 : COPY *.jar /app.jar
 ---> 2c0c4693978e
Step 3/5 : CMD ["--server.port=8080"]
 ---> Running in 314b4f66983b
Removing intermediate container 314b4f66983b
 ---> eb868b307f32
Step 4/5 : EXPOSE 8080
 ---> Running in 0446be7bc6a1
Removing intermediate container 0446be7bc6a1
 ---> cedaf2924d66
Step 5/5 : ENTRYPOINT ["java","-jar","/app.jar"]
 ---> Running in a298708effe5
Removing intermediate container a298708effe5
 ---> 732ee773b3af
Successfully built 732ee773b3af
Successfully tagged docker-gblfy-springboot:1.0
[root@harbor idea]#

5.发布运行

查看docker镜像

systemctl start docker
 docker images

创建容器并运行

docker run -d --name docker-gblfy-springboot -p 8080:8080 docker-gblfy-springboot:1.0

运行记录

[root@harbor idea]# docker run -d --name docker-gblfy-springboot -p 8080:8080 docker-gblfy-springboot:1.0
c37cceec7a1615cb838d31346b94c95681f289375801b6a98e1fa4a764dde9fe

[root@harbor idea]# docker ps
CONTAINER ID   IMAGE                         COMMAND                  CREATED         STATUS         PORTS                                       NAMES
c37cceec7a16   docker-gblfy-springboot:1.0   "java -jar /app.jar …"   4 seconds ago   Up 2 seconds   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   docker-gblfy-springboot

6.上传至私服
7.拉取私服镜像运行