pipeline {

agent any
	
    stages {
        stage('Before parallel') {
			steps{
				echo '1'
				sleep 30
			}
		}
		stage('Parallel') {
            failFast false
            parallel {
                stage('Nested B') {
                    stages {
                        stage('Nested B-1') {
                            steps {
                                echo 'Nested A-1'
                            }
                        }
                        stage('Nested B-2') {
                            steps {
                                sleep time: 2, unit: 'MINUTES'
                            }
                        }
                    }
                }
                stage('Nested C') {
                    when {
                        expression { true == true }
                    }
                    stages {
                        stage('Nested C-1') {
                            steps {
                                echo 'Nested C-1'                               
                            }
                        }
                        stage('Nested C-2') {
                            steps {
                                echo 'Nested C-2'                               
                            }
                        }
                    }
                }
                stage('Nested A') {
                    steps {
                        sleep time: 1, unit: 'MINUTES'
                    }
                }
            }
        }
        stage('After parallel') {
			steps{
				echo '1'
				sleep 30
			}
		}
		stage('Parallel2') {
            failFast false
            parallel {
                stage('Nested B') {
                    stages {
                        stage('Nested B-1') {
                            steps {
                                echo 'Nested A-1'
                            }
                        }
                        stage('Nested B-2') {
                            steps {
                                sleep time: 2, unit: 'MINUTES'
                            }
                        }
                    }
                }
                stage('Nested C') {
                    when {
                        expression { true == true }
                    }
                    stages {
                        stage('Nested C-1') {
                            steps {
                                echo 'Nested C-1'                               
                            }
                        }
                        stage('Nested C-2') {
                            steps {
                                echo 'Nested C-2'                               
                            }
                        }
                    }
                }
                stage('Nested A') {
                    steps {
                        sleep time: 1, unit: 'MINUTES'
                    }
                }
            }
        }		
		
    }
}