A Docker Image is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system libraries, and settings. A Container image is a static template version of a Docker Container, it is stored in the Docker registry.
Container images become containers at runtime and in the case of
Docker containers - images become containers when they run on Docker Engine.
When we execute the $ docker run command the container
image is fetched from the registry and loaded in the Docker Daemon server to
make it a live executing container.
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