Dockerfile

# Minimal dev image for Deep_Sim (Python 3.8)
FROM python:3.8-slim

ENV DEBIAN_FRONTEND=noninteractive \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1

# Core build deps; libgl1 helps headless libs that expect OpenGL present
RUN apt-get update && apt-get install -y --no-install-recommends \
    git build-essential gcc g++ make cmake libgl1 \
 && rm -rf /var/lib/apt/lists/*

# Create non-root user (override at build with --build-arg UID=...)
ARG USER=deepsim
ARG UID=1000
ARG GID=1000
RUN groupadd -g $GID $USER && useradd -m -u $UID -g $GID -s /bin/bash $USER

WORKDIR /app

# 1) Install python deps first (cached layer)
COPY requirements.txt ./
RUN python -m pip install --upgrade pip setuptools wheel \
 && pip install -r requirements.txt

# 2) Bring in the codebase
COPY . .

# If the build context contains .git, try to init submodules.
# (Safe no-op if .git absent or submodules already present.)
RUN if [ -d .git ]; then git submodule update --init --recursive || true; fi

# Optional: install CubitPy’s extra requirements if the submodule exists
RUN if [ -f "cubitpy/requirements.txt" ]; then pip install -r cubitpy/requirements.txt; fi

# Install Deep_Sim in editable/develop mode (installs pydeep_sim and cubitpy pkgs)
RUN python setup.py develop

# Common env placeholders (fill at `docker run -e ...` or via compose)
ENV BACI_RELEASE="" \
    BACI_POST_DRT_ENSIGHT="" \
    BACI_PRE_EXODUS="" \
    CUBIT="" \
    MIRCO="" \
    PARAVIEWPATH="" \
    BEM="" \
    PYTHONPATH="/app/cubitpy:${PYTHONPATH}"

# Use the unprivileged user by default
USER $USER

# Default: a quick sanity check; override with `docker run ... pytest`
CMD ["python", "-c", "import pydeep_sim; print('Deep_Sim container ready ✓')"]