Dockerfile

# Joern CLI container for CPG generation and caching.
FROM eclipse-temurin:21-jdk-jammy

RUN apt-get update && apt-get install -y \
    curl \
    wget \
    unzip \
    && rm -rf /var/lib/apt/lists/*

ENV JOERN_VERSION=4.0.555
ENV JOERN_HOME=/opt/joern

RUN mkdir -p ${JOERN_HOME} && \
    cd /tmp && \
    wget -q https://github.com/joernio/joern/releases/download/v${JOERN_VERSION}/joern-install.sh && \
    chmod +x joern-install.sh && \
    sed -i 's/sudo //g' joern-install.sh && \
    ./joern-install.sh && \
    rm -rf joern-install.sh joern-cli.zip

ENV PATH="${JOERN_HOME}/joern-cli:${JOERN_HOME}/joern-cli/bin:${PATH}"

RUN mkdir -p /playground

RUN joern --help

RUN echo '#!/bin/bash\n\
set -e\n\
tail -f /dev/null\n\
' > /entrypoint.sh && chmod +x /entrypoint.sh

CMD ["/entrypoint.sh"]