使用VSTS CI将简单的Java Rest API推入Docker的步骤

Question

我已经创建了一个简单的rest终结点，它将返回Hello世界进行Get操作。我创建了docker文件来推送

FROM openjdk:8     

RUN mkdir -p /usr/local/app

WORKDIR /usr/local/app

COPY /SpringRest/target/docker-spring.jar /usr/local/app/docker-spring.jar

EXPOSE 8085

ENTRYPOINT ["java","-jar","docker-spring.jar"]

当我尝试使用VSTS运行它时，出现以下错误：

Status: Downloaded newer image for openjdk:8
2018-07-23T10:51:00.4948836Z  ---> 8c80ddf988c8
2018-07-23T10:51:00.4966564Z Step 2/6 : RUN mkdir -p /usr/local/app

2018-07-23T10:51:14.7731002Z  ---> Running in 2242c1baadde
2018-07-23T10:51:16.5140472Z Removing intermediate container 2242c1baadde
2018-07-23T10:51:16.5163574Z  ---> b8dba30e6e9c
2018-07-23T10:51:16.5179644Z Step 3/6 : WORKDIR /usr/local/app


2018-07-23T10:51:17.8398811Z Removing intermediate container 47a1a4cf9a23
2018-07-23T10:51:17.8418756Z  ---> 9fc455c476e0


2018-07-23T10:51:17.8437188Z Step 4/6 : COPY /SpringRest/target/docker-spring.jar /usr/local/app/docker-spring.jar
2018-07-23T10:51:17.8457664Z ***COPY failed: stat /var/lib/docker/tmp/docker-builder484497191/SpringRest/target/docker-spring.jar: no such file or directory
2018-07-23T10:51:17.8581142Z ##[error]COPY failed: stat /var/lib/docker/tmp/docker-builder484497191/SpringRest/target/docker-spring.jar: no such file or directory***
2018-07-23T10:51:17.8659023Z ##[error]/usr/local/bin/docker failed with return code: 1

我缺少任何步骤吗？请帮帮我

Answer 1

尝试一下：

FROM openjdk:8     

RUN mkdir -p /usr/local/app

WORKDIR /usr/local/app

RUN cd /SpringRest/target

COPY docker-spring.jar /usr/local/app/

EXPOSE 8085

ENTRYPOINT ["java","-jar","docker-spring.jar"]   

---

FROM openjdk:8     

WORKDIR /SpringRest/target

EXPOSE 8085

ENTRYPOINT ["java","-jar","docker-spring.jar"]