Update Dockerfile

Dockerfile

@@ -1,53 +1,35 @@
 FROM python:3.11-slim-bookworm
 
-ENV DEBIAN_FRONTEND=noninteractive \
-    PYTHONDONTWRITEBYTECODE=1 \
+ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     STREAMLIT_BROWSER_GATHER_USAGE_STATS=false \
-    XDG_CACHE_HOME=/tmp/.cache \
-    MPLCONFIGDIR=/tmp/matplotlib
+    MPLBACKEND=Agg \
+    MPLCONFIGDIR=/tmp/mplconfig
 
 WORKDIR /app
 
-# Toolchain & fetch tools
+# Minimal OS deps. (git optional but handy if you ever install from a repo)
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential wget curl ca-certificates \
- && rm -rf /var/lib/apt/lists/*
-
-# ---------- 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; \
-    TL_DIR="$(tar -tzf ta-lib-0.4.0-src.tar.gz | head -1 | cut -d/ -f1)"; \
-    cd "${TL_DIR}"; \
-    ./configure --prefix=/usr; \
-    make -j1; \
-    make install; \
-    cd /app; \
-    rm -rf "${TL_DIR}" ta-lib-0.4.0-src.tar.gz; \
-    ldconfig
-
-# Python bootstrap
-RUN python -m pip install --upgrade pip
-
-# 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"
-
-# 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"
-
-# Rest of your deps
-COPY requirements.txt ./
-RUN pip install --no-cache-dir --prefer-binary -r requirements.txt
-
-# App
+    curl ca-certificates git fonts-dejavu \
+ && rm -rf /var/lib/apt/lists/* \
+ && mkdir -p /tmp/mplconfig
+
+# Install Python deps
+COPY requirements.txt .
+# Install TA-Lib wheel explicitly first and fail fast if wheel isn't available
+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
 
+# Healthcheck to catch boot problems early
 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}"]