jenkins-k8s-yaml-pipeline.groovy

v1.groovy

System.setProperty("org.csanchez.jenkins.plugins.kubernetes.pipeline.PodTemplateStepExecution.defaultImage", "jenkins/jnlp-slave:3.36-2")

pipeline {
  agent {
    kubernetes {
      label 'parent-pod'
      containerTemplate(name: 'jnlp', image: "jenkins/jnlp-slave:3.10-1-alpine",args: '${computer.jnlpmac} ${computer.name}')
    }
  }
  stages {
    stage('Run maven') {
      agent {
        kubernetes {
              inheritFrom "jnlp"
              containerTemplate(name: 'jnlp', image: "jenkins/jnlp-slave:3.10-1-alpine",args: '${computer.jnlpmac} ${computer.name}')
              yaml """
                apiVersion: v1
                kind: Pod
                metadata:
                  labels:
                    some-label: some-label-value
                spec:
                  containers:
                  - name: maven
                    image: maven:alpine
                    command:
                    - cat
                    tty: true
                  - name: busybox
                    image: busybox
                    command:
                    - cat
                    tty: true
                """  
        }
      }
      steps {
        echo "hello"
        container('maven') {
          sh 'mvn -version'
        }
        
        
      }
    }
  }
}

v2.groovy

 
System.setProperty("org.csanchez.jenkins.plugins.kubernetes.pipeline.PodTemplateStepExecution.defaultImage", "jenkins/jnlp-slave:3.36-2")

pipeline {
  agent {
    kubernetes {
      label 'parent-pod'
      containerTemplate(name: 'jnlp', image: "jenkins/jnlp-slave:3.10-1-alpine",args: '${computer.jnlpmac} ${computer.name}')
    }
  }
  stages {
    stage('Run maven') {
      agent {
        kubernetes {
                containerTemplates([
    containerTemplate(name: 'maven', inheritFrom: "jnlp",image: 'maven:3.3.9-jdk-7-alpine', command: 'cat', ttyEnabled: true),
    containerTemplate(name: 'jnlp', image: "jenkins/jnlp-slave:4.3-4-alpine",args: '${computer.jnlpmac} ${computer.name}')
  ])

        }
      }
      steps {
        echo "hello"
        container('maven') {
          sh 'mvn -version'
        }
        
        
      }
    }
  }
}