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Improve Dockerfile build configuration and layer caching

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- Add SHELL pipefail to catch pipeline errors during build
   - Consolidate environment variables (PATH, PLAYWRIGHT_BROWSERS_PATH)
   - Fix DEBIAN_FRONTEND to inline usage (avoid runtime pollution)
   - Separate Playwright installation for better layer caching
   - Create dedicated /ms-playwright directory for browser binaries
   - Improve comments for better maintainability

   These changes enhance build robustness and optimize Docker layer
   caching without affecting runtime behavior.
This commit is contained in:
luojiyin
2025-11-05 11:26:05 +08:00
parent 883a405ce8
commit 4dfb70ecfb
1 changed files with 14 additions and 10 deletions
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Dockerfile
+14 -10
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@@ -1,9 +1,13 @@
FROM python:3.11-slim FROM python:3.11-slim
# Prevent Python from writing .pyc files and buffer stdout/stderr SHELL ["/bin/bash", "-o", "pipefail", "-c"]
# Prevent Python from writing .pyc files, buffer stdout/stderr, and pin common tooling paths
ENV PYTHONDONTWRITEBYTECODE=1 \ ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \ PYTHONUNBUFFERED=1 \
PIP_NO_CACHE_DIR=1 PIP_NO_CACHE_DIR=1 \
PATH="/root/.local/bin:${PATH}" \
PLAYWRIGHT_BROWSERS_PATH=/ms-playwright
# Install system dependencies required by scientific Python stack, Playwright, and Streamlit # Install system dependencies required by scientific Python stack, Playwright, and Streamlit
RUN apt-get update && apt-get install -y --no-install-recommends \ RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -34,24 +38,24 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
ffmpeg \ ffmpeg \
&& apt-get clean && rm -rf /var/lib/apt/lists/* && apt-get clean && rm -rf /var/lib/apt/lists/*
# Install uv and expose it on PATH # Install the latest uv release and expose it on PATH
ENV PATH="/root/.local/bin:${PATH}" RUN curl -LsSf --retry 3 --retry-delay 2 https://astral.sh/uv/install.sh | sh
RUN curl -LsSf https://astral.sh/uv/install.sh | sh
WORKDIR /app WORKDIR /app
# Install Python dependencies first to leverage Docker layer caching # Install Python dependencies first to leverage Docker layer caching
COPY requirements.txt ./ COPY requirements.txt ./
RUN uv pip install --system -r requirements.txt && \ RUN uv pip install --system -r requirements.txt
python -m playwright install chromium
# Install Playwright browser binaries (system deps already handled above)
RUN python -m playwright install chromium
# Copy application source # Copy application source
COPY . . COPY . .
# Ensure runtime directories exist even if ignored in build context # Ensure runtime directories exist even if ignored in build context
RUN mkdir -p logs final_reports insight_engine_streamlit_reports media_engine_streamlit_reports query_engine_streamlit_reports RUN mkdir -p /ms-playwright logs final_reports insight_engine_streamlit_reports media_engine_streamlit_reports query_engine_streamlit_reports
# Expose Flask and Streamlit ports
EXPOSE 5000 8501 8502 8503 EXPOSE 5000 8501 8502 8503
# Default command launches the Flask orchestrator which starts Streamlit agents # Default command launches the Flask orchestrator which starts Streamlit agents