This tutorial is on how to resolve this error message when you are trying to build an image using the Docker.
error checking context: ‘no permission to read from FILENAME’
Command used in this demo.
1) To build docker image
docker build -t IMAGE_NAME .
2) Clear screen
clear
3) Directory list
ls
4) Make new directory
mkdir
5) Copy file
cp
6) Revision of Ubuntu
lsb_release -a
Reference