Dockerfile

# Use a lightweight Python base image
FROM python:3.13-slim

# The font packages are what a plan can be drawn in. The app offers a choice
# of family and this image used to carry only the Liberation faces, so every
# choice but one was substituted and every sheet came out looking the same.
#
# liberation2 and croscore are the metric-compatible sets: Liberation
# Sans/Serif/Mono and Arimo/Tinos/Cousine have the same widths as Arial, Times
# New Roman and Courier New. That matters here because a sheet is measured
# from the font's own widths before anything is drawn, so a substitute of
# different proportions moves text that was already fitted to its space.
# dejavu, freefont and urw-base35 add genuinely different designs -- the
# thirty-five PostScript standard faces among them -- so that the families
# the app offers resolve to that many different faces here rather than all
# collapsing onto Liberation Sans.
RUN apt-get update && apt-get install -y \
    wget \
    libfuse2 \
    xvfb \
    libc6 \
    libfontconfig1 \
    fonts-liberation \
    fonts-liberation2 \
    fonts-croscore \
    fonts-dejavu \
    fonts-freefont-ttf \
    fonts-urw-base35 \
    && rm -rf /var/lib/apt/lists/*

# Arial, Times New Roman, Courier New, Georgia, Verdana, Trebuchet MS and the
# rest of the Microsoft core set. The open faces above already carry these
# designs at the same widths -- Liberation Sans is Arial's metrics, Tinos is
# Times' -- so what this adds is the names themselves, which is what a
# surveyor looks for on the font list and what a supervisor expects to read
# on the sheet.
#
# Three things make it its own layer rather than part of the list above:
# the package lives in Debian's contrib component, which the base image does
# not enable; its licence has to be accepted before apt will proceed, and
# there is no terminal here to accept it in; and it downloads the fonts from
# SourceForge at build time, so this is the layer that fails when that host is
# unreachable. Keeping it separate means a font-server outage cannot cost the
# rest of the image.
RUN sed -i "s/^Components: main$/Components: main contrib/" \
        /etc/apt/sources.list.d/debian.sources \
    && apt-get update \
    && echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula \
        select true | debconf-set-selections \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y ttf-mscorefonts-installer \
    && rm -rf /var/lib/apt/lists/*

# Download ODA File Converter AppImage (replace with the latest version)
# RUN wget -O /tmp/ODAFileConverter.AppImage \
#     https://www.opendesign.com/guestfiles/get?filename=ODAFileConverter_QT6_lnxX64_8.3dll_26.8.AppImage

RUN wget -O /tmp/ODAFileConverter.AppImage \
    https://s3.us-east-2.amazonaws.com/tendar.co/ODAFileConverter_QT6_lnxX64_8.3dll_26.10.AppImage


# Extract AppImage (avoids FUSE)
RUN chmod +x /tmp/ODAFileConverter.AppImage \
    && /tmp/ODAFileConverter.AppImage --appimage-extract \
    && mv squashfs-root /opt/ODAFileConverter \
    && ln -s /opt/ODAFileConverter/AppRun /usr/local/bin/ODAFileConverter \
    && rm /tmp/ODAFileConverter.AppImage


ENV ODAFILECONVERTER=/usr/local/bin/ODAFileConverter
ENV XDG_RUNTIME_DIR=/tmp/runtime-root
RUN mkdir -p /tmp/runtime-root && chmod 700 /tmp/runtime-root

# Set the working directory
WORKDIR /app

# Copy requirement files first (better caching)
COPY requirements.txt requirements.txt

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy app files
COPY . .

# Expose the port (Fly will map this automatically)
EXPOSE 8080

# Run with Gunicorn (worker recycling + long timeouts configured in gunicorn.conf.py)
CMD ["gunicorn", "-c", "gunicorn.conf.py", "app:app"]