init

kali/Dockerfile

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+FROM kalilinux/kali-rolling:latest
+
+# Create a non-root user (UID 1000) to map to host user
+ARG USERNAME=kali
+ARG USER_UID=1000
+ARG USER_GID=1000
+
+RUN groupadd -g ${USER_GID} ${USERNAME} \
+ && useradd -m -u ${USER_UID} -g ${USER_GID} -s /bin/bash ${USERNAME}
+
+# Minimal package list commonly useful for binary analysis/exploitation
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    build-essential gcc g++ make clang pkg-config \
+    gdb gdb-multiarch gdbserver \
+    python3 python3-pip python3-dev python3-venv \
+    git curl wget unzip \
+    binutils file binwalk radare2 \
+    strace ltrace lsof \
+    netcat-openbsd socat \
+    unzip p7zip-full \
+    vim less nano \
+    libc6-dbg \
+ && python3 -m venv /opt/venv \
+ && /opt/venv/bin/pip install --upgrade pip setuptools wheel \
+ && /opt/venv/bin/pip install --no-cache-dir pwntools capstone unicorn binwalk \
+ && apt-get clean && rm -rf /var/lib/apt/lists/*
+ENV PATH="/opt/venv/bin:${PATH}"
+
+# Ensure work dir and permissions for non-root user
+RUN mkdir -p /home/${USERNAME}/work /home/${USERNAME}/challenge \
+ && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}
+
+USER ${USERNAME}
+WORKDIR /home/${USERNAME}
+ENV PATH="/home/${USERNAME}/.local/bin:${PATH}"
+