Docker image with Maven fails to run

Question

I want to use Maven in my Docker image.

After looking here https://hub.docker.com/_/maven/ , I tried using this Dockerfile:

FROM openjdk:7

RUN apk add --no-cache curl tar bash

ARG MAVEN_VERSION=3.3.9
ARG USER_HOME_DIR="/root"

RUN mkdir -p /usr/share/maven /usr/share/maven/ref \
  && curl -fsSL http://apache.osuosl.org/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz \
    | tar -xzC /usr/share/maven --strip-components=1 \
  && ln -s /usr/share/maven/bin/mvn /usr/bin/mvn

ENV MAVEN_HOME /usr/share/maven
ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"

COPY mvn-entrypoint.sh /usr/local/bin/mvn-entrypoint.sh
COPY settings-docker.xml /usr/share/maven/ref/

VOLUME "$USER_HOME_DIR/.m2"

ENTRYPOINT ["/usr/local/bin/mvn-entrypoint.sh"]
CMD ["mvn"]

However, I'm getting:

lstat mvn-entrypoint.sh: no such file or directory

I tried different Dockerfiles from the same repositories but they all throw this error.

What's wrong with this dockerfile? How can I use Maven with Docker?

Answer 1

Try this:

Dockerfile:-

FROM openjdk:8u111-jdk-alpine

COPY assets/settings.xml /tmp/settings.xml
ENV PATH=$PATH:/opt/maven/bin

RUN apk add --no-cache curl tar bash && \
  curl -SsL -o /tmp/maven.tar.gz http://www-us.apache.org/dist/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz && \
  mkdir -p /opt && \
  tar xzf /tmp/maven.tar.gz -C /opt/ && \
  ln -s /opt/apache-maven-3.3.9 /opt/maven && \
  rm /tmp/maven.tar.gz && \
  mv /tmp/settings.xml /opt/maven/conf/settings.xml

You need to put this Dockerfile in a new directory, with a subdirectory called 'assets', and you need to put a maven settings file ( settings.xml ) in that directory. If you don't have a custom settings file then remove the COPY and the mv .

Build it with something like

docker --tag ajava8 .

You can run maven in your current directory using something like:

docker run -it --rm -v /$PWD:/work -w /work ajava8 mvn clean install

Or, you can get a bash shell with something similar, like this:

docker run -it --rm -v /$PWD:/work -w /work ajava8 bash

Answer 2

我只是遇到了同样的问题，我忘了下载“ mvn-entrypoint.sh”文件。.https ://github.com/carlossg/docker-maven/tree/322d0dff5d0531ccaf47bf49338cb3e294fd66c8/jdk-8 ..也是设置-docker.xml是必需的。

Answer 3

You need the files copied in the Dockerfile mvn-entrypoint.sh and settings-docker.xml . You can git clone from https://github.com/carlossg/docker-maven