Failing fast principle in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to stop the Jenkins pipeline immediately on failure.

Jenkins

pipeline {
  agent any
  stages {
    stage('Build') {
      steps {
        script {
          sh 'make build' || [1]
        }
      }
    }
  }
}

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

Aerror('Build failed')

Becho 'Build failed'

Creturn

Dsleep 10

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo only prints a message but does not stop the pipeline.

Using return does not fail the pipeline in this context.

Sleeping delays but does not stop the pipeline.

Using error('Build failed') stops the pipeline immediately when the build fails, following the failing fast principle.

2fill in blank

medium

Complete the code to fail fast if tests do not pass.

Jenkins

stage('Test') {
  steps {
    script {
      def status = sh(script: 'make test', returnStatus: true)
      if (status != 0) [1]
    }
  }
}

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

Aerror('Tests failed')

Bsleep 5

Creturn

Decho 'Tests failed'

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo only logs a message but does not stop the pipeline.

Using return does not fail the pipeline here.

Sleeping delays but does not fail the pipeline.

The error('Tests failed') step immediately fails the pipeline if tests fail, implementing fail fast.

3fill in blank

hard

Fix the error in the Jenkins pipeline to fail fast on deployment failure.

Jenkins

stage('Deploy') {
  steps {
    script {
      def result = sh(script: 'deploy.sh', returnStatus: true)
      if (result == 0) {
        echo 'Deployment succeeded'
      } else [1]
    }
  }
}

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

Aecho 'Deployment failed'

Berror('Deployment failed')

Creturn

Dsleep 10

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo only logs but does not stop the pipeline.

Using return does not fail the pipeline here.

Sleeping delays but does not stop the pipeline.

Using error('Deployment failed') causes the pipeline to stop immediately on deployment failure, following fail fast.

4fill in blank

hard

Fill both blanks to fail fast if linting or security scan fails.

Jenkins

stage('Quality Checks') {
  steps {
    script {
      def lintStatus = sh(script: 'lint.sh', returnStatus: true)
      if (lintStatus != 0) [1]
      def scanStatus = sh(script: 'security_scan.sh', returnStatus: true)
      if (scanStatus != 0) [2]
    }
  }
}

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

Aerror('Linting failed')

Becho 'Linting failed'

Cerror('Security scan failed')

Dsleep 5

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo only logs messages but does not stop the pipeline.

Using sleep delays but does not fail the pipeline.

Both error('Linting failed') and error('Security scan failed') stop the pipeline immediately on failure, implementing fail fast.

5fill in blank

hard

Fill all three blanks to fail fast if any critical step fails in this Jenkins pipeline.

Jenkins

pipeline {
  agent any
  stages {
    stage('Critical Steps') {
      steps {
        script {
          def buildStatus = sh(script: 'build.sh', returnStatus: true)
          if (buildStatus != 0) [1]
          def testStatus = sh(script: 'test.sh', returnStatus: true)
          if (testStatus != 0) [2]
          def deployStatus = sh(script: 'deploy.sh', returnStatus: true)
          if (deployStatus != 0) [3]
        }
      }
    }
  }
}

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

Aerror('Build failed')

Berror('Tests failed')

Cerror('Deployment failed')

Decho 'Step failed'

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo only logs messages but does not stop the pipeline.

Not handling all failure cases causes the pipeline to continue despite errors.

Each error() call stops the pipeline immediately on failure of build, test, or deploy steps, following the fail fast principle.