Jenkins - Declarative Pipeline
All valid Declarative Pipelines must be enclosed within a pipeline block, for example:
pipeline {
/* insert Declarative Pipeline here */
}
Terms
Pipeline The pipeline is a set of instructions given in the form of code for continuous delivery and consists of instructions needed for the entire build process. With pipeline, you can build, test, and deliver the application.
Node The machine on which Jenkins runs is called a node. A node block is mainly used in scripted pipeline syntax.
Stage A stage block contains a series of steps in a pipeline. That is, the build, test, and deploy processes all come together in a stage. Generally, a stage block is used to visualize the Jenkins pipeline process.
Step A step is nothing but a single task that executes a specific process at a defined time. A pipeline involves a series of steps.
Pipeline contains agenst & Stages
Each Stage have a series of steps can be defined.
Example #1
Write below code on Pipeline step
pipeline {
agent any
tools {
jdk 'JDK 8'
maven 'Maven6'
}
stages {
stage('test java installation') {
steps {
bat 'java -version'
}
}
stage('test maven installation') {
steps {
bat 'mvn -version'
}
}
}
}
Build Pipeline
Example #2
Build Maven Project
pipeline {
agent any
tools {
jdk 'JDK 8'
maven 'Maven6'
}
stages {
stage('Install') {
steps {
bat "mvn clean test"
}
post {
always {
junit '**/target/*-reports/TEST-*.xml'
}
}
}
}
}