CODEWITHSUNDEEP
spring-bootmavendockerfile
RohanDsouza
RohanDsouza

Reputation: 412

Error executing docker file in spring boot maven project

Facing problems in docker file (spring boot maven project). When running docker file, it gives an error "The command '/bin/sh -c mvn -f pom.xml clean package' returned a non-zero code: 1". However if I directly execute the command 'mvn -f pom.xml clean package', I do not get any error.

FROM maven:3.6.1-jdk-8-slim AS build
RUN mkdir -p /workspace
WORKDIR /workspace
COPY pom.xml /workspace
COPY src /workspace/src
RUN mvn -f pom.xml clean package

FROM openjdk:8-alpine
COPY --from=build /workspace/target/*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","app.jar"]

Please help on the same.

Upvotes: 0

Views: 1259

Answers (1)

Giga Kokaia
Giga Kokaia

Reputation: 939

You can use experimental feature cache to speed up building process

# syntax=docker/dockerfile:1.0-experimental

you dont need to run mkdir

RUN mkdir -p /workspace

just workdir is enought

WORKDIR /workspace

you can copy folder by 

COPY . .

and add .dockerignore file from preventing not build related files and folders

RUN --mount=type=cache,target=/root/.m2/repository mvn -e -B clean package - 
Dmaven.test.skip=true

change 

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

to

CMD ["java","-Djava.security.egd=file:/dev/./urandom", "-jar", "/app.jar"]

maven output will be helpfull to detect what exactly is wrong.

Upvotes: 1

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