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Dockerized the project
Dockerized the project
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Pull request overview
This pull request introduces Docker support for the Coderrr backend to simplify local development setup. The PR title is "Dockerized the project" which accurately reflects the changes in the diff, though the description mentions Skills.md functionality that is not present in these changes.
Changes:
- Added Dockerfile for the Python FastAPI backend with Python 3.11-slim base image
- Added docker-compose.yml with development configuration including hot-reloading support
- Added .dockerignore to exclude unnecessary files from Docker builds
- Updated README.md with Docker setup instructions as the recommended approach
Reviewed changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 12 comments.
| File | Description |
|---|---|
| backend/Dockerfile | Defines the backend container image with Python 3.11, installs dependencies, and configures uvicorn to run on port 5000 |
| docker-compose.yml | Orchestrates the backend service with port mapping, volume mounts for hot-reloading, environment variable loading, and auto-restart policy |
| .dockerignore | Excludes git files, node modules, Python cache, virtual environments, and Docker files from the build context |
| README.md | Documents Docker as the recommended backend setup method with a simple one-command start |
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The docker-compose.yml file has two empty lines at the beginning. While this doesn't affect functionality, it's unconventional and should be removed for cleaner code formatting.
| # Load environment variables from .env file if it exists | ||
| env_file: | ||
| - .env |
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The docker-compose.yml file references a .env file that should be located at the repository root, but this .env file path is not documented in the README. Users following the Docker setup instructions will need to create this .env file with the appropriate backend environment variables (like GITHUB_TOKEN, GITHUB_MODELS_ENDPOINT, GITHUB_MODEL, etc.). Consider adding explicit instructions in the README about creating the root .env file from .env.example before running docker compose.
| # Load environment variables from .env file if it exists | |
| env_file: | |
| - .env |
| volumes: | ||
| - ./backend:/app |
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The volume mount ./backend:/app overrides the entire /app directory in the container, including the Python dependencies installed by the Dockerfile. This defeats the purpose of the pip install step in the Dockerfile. For development with hot-reloading to work properly, you have two options:
- Use a named volume for Python packages: add
- backend-deps:/usr/local/lib/python3.11/site-packagesto preserve installed packages - Document that developers need to run
pip install -r requirements.txtin their local backend/ directory
Without this, the container will fail to start because the required Python packages won't be available at runtime.
| # Git | ||
| .git | ||
| .gitignore | ||
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| # Node | ||
| node_modules | ||
| npm-debug.log | ||
| dist | ||
| coverage | ||
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| # Python | ||
| __pycache__ | ||
| *.pyc | ||
| *.pyo | ||
| *.pyd | ||
| .Python | ||
| env | ||
| venv | ||
| pip-log.txt | ||
| pip-delete-this-directory.txt | ||
| .tox | ||
| .coverage | ||
| .coverage.* | ||
| .cache | ||
| nosetests.xml | ||
| coverage.xml | ||
| *.cover | ||
| *.log | ||
| .pytest_cache | ||
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| # Docker | ||
| docker-compose.yml | ||
| Dockerfile | ||
| .dockerignore | ||
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| # Environment | ||
| .env |
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The .dockerignore file is placed in the repository root, but the Docker build context in docker-compose.yml is set to ./backend. Docker will look for .dockerignore in the build context directory (backend/), not in the repository root. This .dockerignore file will not be used during the Docker build. Either move this file to the backend/ directory, or change the build context to the repository root and adjust the Dockerfile accordingly.
| .dockerignore | ||
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| # Environment | ||
| .env |
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The .dockerignore file excludes .env files from the Docker build, but the docker-compose.yml uses env_file: - .env to load environment variables. This creates a dependency on a .env file that must exist at the repository root. While excluding .env from the image is correct for security, users need clear documentation about creating this file. The README should include instructions to copy .env.example to .env and configure it before running docker compose.
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The docker-compose.yml file is missing a version specification. While Docker Compose v2+ doesn't strictly require a version field (it's optional), it's considered best practice to include it for clarity and backwards compatibility. Add version: '3.8' or version: '3.9' at the top of the file (after removing the empty lines) to explicitly declare the Compose file format version being used.
| version: '3.9' |
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| # Set environment variables |
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The PR description extensively discusses Skills.md support, prompt construction changes, and unit tests (mentioning files like src/agent.js, Skills.md, and skills.test.js), but none of these changes are present in the actual diff. The diff only contains Docker-related files. This creates confusion about what is actually being changed in this PR. Please update the PR description to accurately reflect only the Docker-related changes, or include the missing Skills.md-related changes in the PR if they should be part of it.
| #### Option A: Docker (Recommended) | ||
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| ```bash | ||
| docker compose up --build | ||
| ``` | ||
| The backend will be started at `http://localhost:5000` with hot-reloading enabled. |
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The Docker setup instructions are missing critical steps. Before running docker compose up --build, users need to:
- Create a .env file at the repository root (copy from .env.example or backend/.env.example)
- Configure the required environment variables (GITHUB_TOKEN, GITHUB_MODELS_ENDPOINT, GITHUB_MODEL)
Without these steps, the container will start but the backend won't be functional due to missing API credentials. Add a step before line 361 instructing users to set up the .env file.
| # Install system dependencies (if any needed, e.g. for build tools) | ||
| # RUN apt-get update && apt-get install -y --no-install-recommends gcc && rm -rf /var/lib/apt/lists/* |
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The commented line suggests that gcc might be needed for building some Python packages, but it's unclear if this is actually required. If any of the dependencies in requirements.txt need compilation (like some cryptography or data science libraries), the build will fail without these system dependencies. Either uncomment this line if build tools are needed, or remove the comment if all dependencies are pure Python packages. You can verify by testing the Docker build.
| # Install system dependencies (if any needed, e.g. for build tools) | |
| # RUN apt-get update && apt-get install -y --no-install-recommends gcc && rm -rf /var/lib/apt/lists/* | |
| # Install system dependencies required for building Python packages | |
| RUN apt-get update && apt-get install -y --no-install-recommends gcc && rm -rf /var/lib/apt/lists/* |
| - .env | ||
| # Override command to enable hot reloading for development | ||
| command: uvicorn main:app --host 0.0.0.0 --port 5000 --reload | ||
| restart: unless-stopped |
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The restart policy unless-stopped is appropriate for development, but it means the container will automatically restart on system boot. For a development environment, restart: "no" or restart: on-failure might be more appropriate to avoid unnecessary resource usage when not actively developing. The current setting is more suited for production deployments.
| restart: unless-stopped | |
| restart: "no" |
2 participants
This pull request introduces support for persistent project-wide skills via a new
Skills.mdfile, improves prompt construction logic, and adds Docker-based backend setup for easier development. The most significant changes are grouped below:Skills.md Support and Prompt Construction:
Skills.mdin the project directory, which is prepended to all user prompts for consistent guidance. The prompt construction logic now prioritizes: system prompt, thenSkills.md, thenCoderrr.md, then the user request. [1] [2] [3] [4]Skills.md.Skills.md,Coderrr.md, and verifying the prompt priority order inskills.test.js.Dockerization and Development Environment:
Dockerfilefor the backend and adocker-compose.ymlto enable easy local development and hot-reloading using Docker. [1] [2].dockerignoreto exclude unnecessary files from Docker builds, improving build performance and security.README.mdwith instructions for running the backend using Docker as the recommended approach, while retaining manual setup steps.