Declarative Pipeline
Declarative Pipeline is a domain-specific language (DSL) for defining continuous integration and continuous delivery (CI/CD) pipelines in Jenkins, a popular automation server. It provides a simplified, structured syntax that focuses on declaring what the pipeline should do rather than how to do it, making pipeline code more readable, maintainable, and less error-prone. It is built on top of Jenkins' Scripted Pipeline but enforces best practices and reduces boilerplate code.
Developers should learn Declarative Pipeline when working with Jenkins for CI/CD, as it is the recommended approach for defining pipelines due to its clarity and ease of use. It is particularly useful in team environments where multiple developers need to collaborate on pipeline code, as it enforces a consistent structure and reduces the learning curve compared to Scripted Pipeline. Use cases include automating build, test, and deployment processes for applications, especially in DevOps workflows that require reliable and repeatable automation.