Using COPY --chown instead of RUN chown in a Dockerfile has several advantages that can lead to more efficient and secure Docker images.

Enabling DOCKER_CONTENT_TRUST is an excellent practice to ensure the integrity and authenticity of Docker images. This feature uses digital signatures to verify the publisher of a Docker image and ensure that the image hasn't been tampered with.

Docker is a software platform that helps us to build, test and deploy our applications without delay. Docker bundle our software into standardized units called containers. Containers that have all the necessary elements which the software needs to run including libraries, system tools, code, and runtime.