Agent directive in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the agent for the Jenkins pipeline.

Jenkins

pipeline {
  agent [1]
  stages {
    stage('Build') {
      steps {
        echo 'Building...'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

Anone

Blabel

Cdocker

Dany

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'none' disables the agent, which is not intended here.

Using 'docker' requires additional configuration.

The agent any directive tells Jenkins to run the pipeline on any available agent.

2fill in blank

medium

Complete the code to specify a label for the Jenkins agent.

Jenkins

pipeline {
  agent {
    label '[1]'
  }
  stages {
    stage('Test') {
      steps {
        echo 'Testing...'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

Alinux

Bany

Cdocker

Dwindows

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'any' ignores the label requirement.

Using 'docker' is not a label but a different agent type.

The label 'linux' directive tells Jenkins to run the pipeline on an agent labeled 'linux'.

3fill in blank

hard

Fix the error in the agent directive to use a Docker container.

Jenkins

pipeline {
  agent {
    docker [1]
  }
  stages {
    stage('Deploy') {
      steps {
        echo 'Deploying...'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

A'node:14'

Bnode:14

Cnode14

D'node14'

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes causes syntax errors.

Using incorrect image names without colon and version.

The Docker image name must be a string, so it needs quotes like 'node:14'.

4fill in blank

hard

Fill both blanks to specify a Docker agent with a custom label.

Jenkins

pipeline {
  agent {
    docker {
      image [1]
      label [2]
    }
  }
  stages {
    stage('Integration') {
      steps {
        echo 'Running integration tests...'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

A'python:3.9'

B'node:16'

C'linux'

D'docker-agent'

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up image and label values.

Omitting quotes around strings.

The image should be a Docker image string like 'python:3.9', and label should be the agent label like 'docker-agent'.

5fill in blank

hard

Fill all three blanks to define a Jenkins pipeline with a Kubernetes agent specifying the YAML file, label, and default container.

Jenkins

pipeline {
  agent {
    kubernetes {
      yamlFile [1]
      label [2]
      defaultContainer [3]
    }
  }
  stages {
    stage('Build') {
      steps {
        echo 'Building in Kubernetes...'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

A'pod.yaml'

B'k8s-agent'

C'jnlp'

D'agent.yaml'

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong YAML file names.

Confusing label and container names.

Omitting quotes around strings.

The yamlFile should be the Kubernetes pod definition file like 'agent.yaml', the label is the agent label like 'k8s-agent', and defaultContainer is the container name like 'jnlp'.