Learn everything you need to know about Jenkinsfile in this comprehensive tutorial. Explore the evolution from scripted to declarative pipeline syntax, understand the basic structure of a Jenkinsfile, and master essential concepts such as post-build actions, conditionals, environmental variables, and tool attributes. Discover how to create parameterized builds and leverage external Groovy scripts to enhance your Jenkins pipeline. Gain practical insights to configure build pipelines for your own projects using Jenkinsfile, with detailed explanations and examples provided throughout the 35-minute video.