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Creating new Docker containers from scratch, rather than capturing an existing LXC, offers several advantages:

• Clean Slate: Ensures a minimal, purpose-built environment without unnecessary components.
• Better Portability: Docker images are more universally compatible across cloud platforms.
• Easier Maintenance: Simpler to update and modify individual components.
• Improved Security: Reduces potential vulnerabilities by including only necessary components.
• Optimized Performance: Smaller, more efficient containers that start faster and use fewer resources.

• Use the official MariaDB image from Docker Hub
• Example:

FROM mariadb:latest
ENV MYSQL_ROOT_PASSWORD=your_root_password
ENV MYSQL_DATABASE=your_database_name

• Use a Python base image
• Example Dockerfile:

FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
CMD ["python", "your_app.py"]

• Build images: docker build -t your_app:latest .
• Test locally: docker run -d your_app:latest

• Tag images: docker tag your_app:latest your_acr.azurecr.io/your_app:latest
• Push to ACR: docker push your_acr.azurecr.io/your_app:latest

• Create container group with both MariaDB and Python app containers
• Set up networking for inter-container communication
• Configure persistent storage for MariaDB data

• Use environment variables for configuration
• Implement proper logging
• Keep containers stateless where possible
• Regularly update base images and dependencies

By creating purpose-built containers, you ensure a more efficient, secure, and maintainable deployment in Azure Container Instances compared to capturing an existing LXC environment.