Building Docker Image

Whenever we build an image Docker will cache each layer of the build process so if in the future we make change to a any layer the other layers can be used directly without having to build them
When a layer changes every layer below that will also be built again

docker image build -t <image-name> . 

The . at the end of the command is to use say make the image using the files in the current directory

.dockerignore file can be created to skip adding on certain files into the container when using the COPY option

Options
-t: Name to be assigned to the image
-f: Dockerfile name
--progress plan: View output of commands executed inside container