node("my-jenkinsagent-alpine") { // Linux alpine agent with the Docker daemon and jdk8
    sh "docker version"
    docker.image('maven').inside { // Docker image with Maven installed
        withMaven(globalMavenSettingsConfig: 'default-maven-settings') {
            git 'https://github.com/cyrille-leclerc/my-jar.git'
            sh 'ls -al ${MVN_CMD_DIR}'
            sh 'export PATH=$MVN_CMD_DIR:$PATH && mvn clean deploy'
        }
    }
}