Update Dockerfile

Dockerfile

@@ -10,12 +10,12 @@ ENV DEBIAN_FRONTEND=noninteractive \
 
 WORKDIR /app
 
-# System deps (compiler toolchain + fetch tools)
+# Toolchain & fetch tools
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential curl wget ca-certificates \
+    build-essential wget curl ca-certificates \
  && rm -rf /var/lib/apt/lists/*
 
-# ---- Build & install TA-Lib C library (serial make to avoid race) ----
+# ---------- Build & install TA-Lib C library (NO parallel make) ----------
 RUN set -eux; \
     wget -O ta-lib-0.4.0-src.tar.gz "http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz"; \
     tar -xzf ta-lib-0.4.0-src.tar.gz; \
@@ -28,21 +28,20 @@ RUN set -eux; \
     rm -rf "${TL_DIR}" ta-lib-0.4.0-src.tar.gz; \
     ldconfig
 
-# Python deps
+# Python bootstrap
 RUN python -m pip install --upgrade pip
 
-COPY requirements.txt ./
-
-# 1) Ensure NumPy 1.26.x headers are present for the TA-Lib build
-RUN pip install --no-cache-dir --prefer-binary "numpy==1.26.4"
+# Install headers needed for TA-Lib Python build (must be in the SAME env)
+RUN pip install --no-cache-dir "numpy==1.26.4" "Cython==0.29.36" "setuptools<75"
 
-# 2) Build/install the Python wrapper WITHOUT build isolation (uses the NumPy we just installed)
+# Build the TA-Lib Python wrapper USING the env’s Cython (regenerates code for Py3.11)
 RUN pip install --no-cache-dir --prefer-binary --no-build-isolation "TA-Lib==0.4.24"
 
-# 3) Install the rest (TA-Lib already satisfied; keep your numpy<2 pin in requirements)
+# Rest of your deps
+COPY requirements.txt ./
 RUN pip install --no-cache-dir --prefer-binary -r requirements.txt
 
-# Your code
+# App
 COPY . .
 
 ENV PORT=7860
@@ -51,4 +50,4 @@ 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 ["sh", "-c", "streamlit run app.py --server.address=0.0.0.0 --server.port=${PORT} --server.headless=true"]
+CMD ["sh", "-c", "streamlit run app.py --server.address=0.0.0.0 --server.port=${PORT} --server.headless=true"]