What are the main criteria a Docker image should meet before use?

Main criteria for a Docker image before use:

• Minimalism and security: the image should contain only necessary dependencies and be free of vulnerabilities.
• Optimal size: a smaller image size speeds up loading and deployment.
• Correct configuration: properly configured ENTRYPOINT and CMD, as well as environment variables.
• Reproducibility: the image should be reproducible from the Dockerfile without manual changes.
• Testability: the image should pass tests to ensure the application's operability inside the container.
• Documentation: presence of descriptions and usage instructions for the image.

Adhering to these criteria ensures reliability and ease of working with Docker images.