Create Dockerfile

Dockerfile

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+# ============================================================
+# Dockerfile for HF Spaces (Docker SDK)
+# - Runs a Gradio app (app.py)
+# - Supports Python + R
+# - Runs notebooks via papermill (Python + R kernel)
+# ============================================================
+
+FROM python:3.11-slim
+
+# ---------- System deps ----------
+# - build-essential, gfortran: needed for some R packages (glmnet)
+# - r-base: R runtime
+# - libcurl/ssl/xml2: common deps for R packages
+# - default-jre: sometimes useful for some libs, safe to omit if you want
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    gfortran \
+    r-base \
+    r-base-dev \
+    libcurl4-openssl-dev \
+    libssl-dev \
+    libxml2-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---------- R packages ----------
+# Install required R packages for your notebook + prediction:
+# - jsonlite: read/write json
+# - glmnet: lasso logistic regression
+# - Matrix: sparse matrices
+# - pROC: ROC/AUC
+RUN R -e "install.packages(c('jsonlite','glmnet','Matrix','pROC'), repos='https://cloud.r-project.org')"
+
+# ---------- IRkernel (so papermill can execute R notebooks) ----------
+RUN R -e "install.packages('IRkernel', repos='https://cloud.r-project.org'); IRkernel::installspec(user = FALSE)"
+
+# ---------- Python deps ----------
+WORKDIR /app
+COPY requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+# papermill sometimes needs jupyter + ipykernel explicitly
+RUN pip install --no-cache-dir jupyter ipykernel
+
+# ---------- Copy project files ----------
+COPY . /app
+
+# HF uses port 7860
+EXPOSE 7860
+
+# ---------- Start Gradio app ----------
+CMD ["python", "app.py"]