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FROM maven:3-jdk-8

# Download OS dependencies
RUN apt-get update && \
    apt-get install -y \
      libsnappy1v5 \
      python-pip \
      python-virtualenv \
      python-dev \
      rsync \
  && rm -rf /var/lib/apt/lists/*

# Add the entrypoint script that downloads the beam sources on run
COPY docker-entrypoint.sh /usr/local/bin/
RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh # backwards compat
ENTRYPOINT ["docker-entrypoint.sh"]

# Create beam user to validate the build on user space
ENV USER=user \
    UID=9999 \
    HOME=/home/user
RUN groupadd --system --gid=$UID $USER; \
    useradd --system --uid=$UID --gid $USER $USER;
RUN mkdir -p $HOME; \
    chown -R $USER:$USER $HOME;
USER $USER
WORKDIR $HOME

ARG URL=https://github.com/apache/beam
ENV BRANCH=master

RUN git clone $URL beam; \
  cd beam; \
  git config --local --add remote.origin.fetch '+refs/pull/*/head:refs/remotes/origin/pr/*'; \
  git fetch --quiet --all;
