Dockerfile

FROM rocker/shiny:latest

# Work in /code (HF/Render/Heroku-friendly)
WORKDIR /code

# System dependencies for htmltools/bslib/sass, curl/openssl/xml, and image formats
RUN apt-get update && apt-get install -y --no-install-recommends \
    libcurl4-openssl-dev \
    libssl-dev \
    libxml2-dev \
    libfontconfig1-dev \
    libfreetype6-dev \
    libharfbuzz-dev \
    libfribidi-dev \
    libpng-dev \
    libjpeg-dev \
    libtiff5-dev \
    libwebp-dev \
    libgl1-mesa-dev \
    && rm -rf /var/lib/apt/lists/*

# R packages used by the app (skip those already present)
RUN install2.r --error --skipinstalled \
    shiny \
    DT \
    dplyr \
    readxl \
    scales \
    readr \
    tidyverse \
    bslib \
    htmltools \
    shinyWidgets \
    ggplot2 \
    shinyjs \
    && R -q -e "update.packages(ask = FALSE, checkBuilt = TRUE)"

# Copy app files
COPY . .

# Default port used by Spaces; adjust if your platform injects PORT
ENV PORT=7860
EXPOSE 7860

# Run the app
CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=as.integer(Sys.getenv('PORT', '7860')))"]