Build Dockerfiles

pipeline {
    agent any
    
    stages {
        stage("Create Dockerfile and Image") {
            steps {
                writeFile file: 'Dockerfile', text: '''FROM ubuntu
                MAINTAINER Patrick Wolf <pwolf@cloudbees.com>
                RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
                RUN apt-get update
                RUN apt-get upgrade -y'''
                sh "docker build -t pwolf/myimage ."
            }
        }
        stage("Use Image") {
            agent { 
                docker {
                    image "pwolf/myimage"
                    reuseNode true
                }                
            }
            steps {
                sh "hostname"
            }
        }
        stage("Use Image2") {
            agent { 
                docker {
                    image "pwolf/myimage"
                    reuseNode true
                }                
            }
            steps {
                sh "hostname"
            }
        }
    }
}