change base image #57
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Summary of ChangesHello @JacksonMei, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request refactors the default Dockerfile template by transitioning from a generic Python base image to a custom, parameterized base image. This change aims to enhance control and standardization over the build environment, ensuring consistency across deployments. Additionally, it includes a minor adjustment to explicitly use Highlights
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Code Review
This pull request updates the base Docker image used in the default project template. The new base image is now configurable via build arguments, which is a good improvement. My review includes a few suggestions for the Dockerfile to optimize build times by leveraging layer caching, improve container shutdown behavior by using the exec form for ENTRYPOINT, and to remove a temporary comment.
| COPY . . | ||
| RUN python -m pip install --no-cache-dir -r /app/requirements.txt | ||
| RUN python3 -m pip install --no-cache-dir -r /app/requirements.txt |
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To leverage Docker's layer caching more effectively, you should copy requirements.txt and install dependencies before copying the rest of the application code. This prevents re-installing dependencies every time a source file changes, which can significantly speed up the build process.
I suggest changing these lines to:
COPY requirements.txt /app/requirements.txt
RUN python3 -m pip install --no-cache-dir -r /app/requirements.txt
COPY . .| ENTRYPOINT ["/bin/bash", "-c"] | ||
| CMD ["python3 -m aenv.main /app/src"] |
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Using the shell form of ENTRYPOINT (e.g., ENTRYPOINT ["/bin/bash", "-c"]) can cause issues with signal handling. The shell process (PID 1) might not forward signals like SIGTERM to your application, preventing a graceful shutdown. It's better to use the 'exec' form, which makes your application the main process (PID 1) in the container.
ENTRYPOINT ["python3", "-m", "aenv.main"]
CMD ["/app/src"]
| @@ -1,10 +1,14 @@ | |||
| ARG REGISTRY_PREFIX= | |||
| FROM ${REGISTRY_PREFIX}python:3.12-slim | |||
| # This is a test file | |||
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This comment appears to be for testing and should be removed to keep the Dockerfile template clean and professional.
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