jenkins-parameterized-declarative-pipeline-script

pipeline {
    agent any
    stages {
        stage('Setup parameters') {
            steps {
                script {
                    properties([
                        parameters([
                            choice(
                                choices: ['DEV', 'STAGE', 'PROD'],
                                name: 'ENVIRONMENT'
                            ),
                            booleanParam(
                                defaultValue: true,
                                description: '',
                                name: 'BOOLEAN'
                            ),
                            text(
                                defaultValue: '''
                                this is a multi-line
                                string parameter example
                                ''',
                                 name: 'MULTI-LINE-STRING'
                            ),
                            string(
                                defaultValue: 'DevOps',
                                name: 'JOBROLE',
                                trim: true
                            )
                        ])
                    ])
                }
            }
        }
        stage('Deploy to Production') {
            when {
                expression {
                   return params.ENVIRONMENT == 'PROD'
                }
            }
            steps {
                    sh """
                    echo "deploy to production"
                    """
                }
        }
    }
}