Update Dockerfile

Dockerfile

@@ -1,24 +1,34 @@
-FROM python:3.9-slim
+FROM python:3.9-slim-bookworm
 
-WORKDIR /app
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    STREAMLIT_BROWSER_GATHER_USAGE_STATS=false \
+    MPLBACKEND=Agg \
+    MPLCONFIGDIR=/tmp/mplconfig
 
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    wget \
-    && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
 
-RUN wget http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz && \
-    tar -xvzf ta-lib-0.4.0-src.tar.gz && \
-    cd ta-lib/ && \
-    ./configure --prefix=/usr && \
-    make && \
-    make install
+# Minimal system deps for matplotlib fonts/rendering (no compilers needed)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl ca-certificates fonts-dejavu libfreetype6 libpng16-16 \
+ && rm -rf /var/lib/apt/lists/* \
+ && mkdir -p /tmp/mplconfig
 
+# Install Python deps
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+RUN python -m pip install --upgrade pip setuptools wheel \
+ && pip install --no-cache-dir --only-binary=:all: "TA-Lib==0.6.5" \
+ && pip install --no-cache-dir -r requirements.txt
 
+# Your code
 COPY . .
 
+ENV PORT=7860
 EXPOSE 7860
 
-CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]
+# (Optional) healthcheck
+HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
+  CMD curl --fail http://127.0.0.1:${PORT}/_stcore/health || exit 1
+
+CMD ["sh","-c","streamlit run app.py --server.port=${PORT} --server.address=0.0.0.0"]