spiralizer/Dockerfile at main · pjt222/spiralizer · GitHub

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# ===========================================================================
# Stage 1: Dependencies (cached layer -- only rebuilds when DESCRIPTION changes)
# ===========================================================================
FROM rocker/r-ver:4.4.2 AS deps

# Headless rgl (no X11 display in Docker)
ENV RGL_USE_NULL=TRUE

# System libraries needed by R packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libcurl4-openssl-dev \
    libssl-dev \
    libxml2-dev \
    libgl1-mesa-dev \
    libglu1-mesa-dev \
    libpng-dev \
    libfreetype6-dev \
    libharfbuzz-dev \
    libfribidi-dev \
    libfontconfig1-dev \
    zlib1g-dev \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy only dependency-defining file for cache optimization
COPY DESCRIPTION /tmp/pkg/DESCRIPTION

# Install all R packages (PPM binaries where available)
RUN Rscript -e " \
  install.packages('remotes', repos='https://cloud.r-project.org'); \
  # Core dependencies \
  install.packages(c('Rcpp', 'shiny', 'bslib', 'colourpicker', \
    'viridisLite', 'memoise', 'cachem', 'config', 'here', 'grDevices'), \
    repos='https://cloud.r-project.org'); \
  # GitHub-only packages (archived from CRAN) \
  remotes::install_github('stla/cxhull'); \
  remotes::install_github('stla/tessellation'); \
"

# ===========================================================================
# Stage 2: Application (fast rebuild on code changes)
# ===========================================================================
FROM deps AS app

# Create app user (HF Spaces runs as uid 1000)
RUN useradd -m -u 1000 appuser

# Copy package source and install (compiles Rcpp C++)
COPY . /tmp/spiralizer-src
RUN cd /tmp/spiralizer-src && \
    R CMD INSTALL --no-test-load . && \
    rm -rf /tmp/spiralizer-src

# Set up the Shiny app directory
RUN mkdir -p /app
COPY inst/app/ /app/

RUN chown -R appuser:appuser /app

USER appuser
WORKDIR /app

EXPOSE 7860

CMD ["Rscript", "-e", "shiny::runApp('/app', host='0.0.0.0', port=7860, launch.browser=FALSE)"]