1-CREATING JENKINS SERVER AND AGENT
2-create the folder of the libraries and add the functions with a file named docker.groovy
3- create a new repo to save the Jenkinsfile on it: https://github.com/mohame...
4-Cionfigure the jenkins system with Global trusted pipeline libraries add the repo:
5-write the Jenkinsfile pipeline to build a stage-parallel for build and push images calling the
library and using it on a global level to access all the functions.
6-Using Scripted Pipeline (Groovy)