Update Dockerfile

Dockerfile

@@ -1,22 +1,24 @@
-FROM python:3.11-slim
+FROM python:3.9-slim
 
 WORKDIR /app
-ENV PIP_NO_CACHE_DIR=1
 
-# Optional: minimal build tools; TA-Lib wheel won't need them
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    ca-certificates curl && \
-    rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    wget \
+    && rm -rf /var/lib/apt/lists/*
+
+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
 
 COPY requirements.txt .
-RUN python -m pip install --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-ENV PORT=7860
 EXPOSE 7860
-HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
-  CMD curl --fail http://127.0.0.1:${PORT}/_stcore/health || exit 1
 
 CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]