Docker Image
+ A read only template composed of layered file systems.
+ It is used to share common files and create Docker container instances.
Docker Container
+ Containers are the instances of images.
+ Containers are an encapsulation of an application with its dependencies.
Docker File
+ Dockerfile is a script, composed of various commands (instructions) and arguments listed successively to automatically perform actions on a base image in order to create (or form) a new one.
+ They are used for organizing things and greatly help with deployments by simplifying the process start-to-finish.
