Adjust Dockerfile for Space build

Dockerfile

@@ -4,7 +4,6 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     HOME=/home/user \
-    PATH=/home/user/.local/bin:$PATH \
     CHROME_BIN=/usr/bin/chromium \
     CHROMEDRIVER_PATH=/usr/bin/chromedriver \
     DATA_DIR=/data
@@ -15,20 +14,21 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     fonts-noto-cjk \
     fonts-noto-color-emoji \
     ca-certificates \
-    && useradd -m -u 1000 user \
-    && mkdir -p /data \
-    && chmod 777 /data \
     && rm -rf /var/lib/apt/lists/*
 
-WORKDIR ${HOME}/app
-USER user
+WORKDIR /app
+
+COPY requirements.txt /app/requirements.txt
+RUN pip install --upgrade pip && pip install -r /app/requirements.txt
 
-COPY --chown=user requirements.txt ./
-RUN pip install --upgrade --user pip && pip install --user -r requirements.txt
+COPY . /app
 
-COPY --chown=user . .
-RUN mkdir -p ${HOME}/app/data
+RUN useradd -m -u 1000 user \
+    && mkdir -p /data /app/data \
+    && chown -R user:user /app /data
+
+USER user
 
 EXPOSE 7860
 
-CMD ["sh", "-c", "gunicorn --bind 0.0.0.0:${PORT:-7860} --workers 1 --threads 8 --timeout 180 app:app"]
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--threads", "8", "--timeout", "180", "app:app"]