Dockerfile

FROM rocker/shiny:4.3.3

WORKDIR /code

# システム依存ライブラリ
RUN apt-get update && apt-get install -y \
    libcurl4-openssl-dev \
    libssl-dev \
    libxml2-dev \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# パッケージを1つずつインストール（OOM対策）
RUN Rscript -e "install.packages('shiny', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('shinydashboard', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('ggplot2', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('dplyr', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('readr', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('tidyr', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('cluster', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('DT', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('ggExtra', repos='https://cran.r-project.org')"
RUN Rscript -e "install.packages('randomForest', repos='https://cran.r-project.org')"

COPY . .

EXPOSE 7860

CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]