When to choose Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a Jenkins pipeline with a simple stage.

Jenkins

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

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Aexecute

Bsh

Crun

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'run' or 'execute' which are not Jenkins pipeline steps.

The sh step runs shell commands in Jenkins pipelines.

2fill in blank

medium

Complete the code to trigger a Jenkins job remotely using a token.

Jenkins

curl -X POST http://jenkins.example.com/job/myjob/build?token=[1]

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Amytoken123

Bpassword

Cusername

Dapikey

Attempts:

3 left

💡 Hint

Common Mistakes

Using username or password instead of token.

The token mytoken123 is used to authenticate remote triggers.

3fill in blank

hard

Fix the error in the Jenkinsfile to correctly define an environment variable.

Jenkins

pipeline {
  agent any
  environment {
    MY_VAR = [1]
  }
  stages {
    stage('Test') {
      steps {
        sh 'echo $MY_VAR'
      }
    }
  }
}

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A'hello'

Bhello

C"hello"

DMY_VAR

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted values or single quotes which may cause errors.

Environment variables in Jenkinsfile need to be strings with double quotes.

4fill in blank

hard

Fill both blanks to create a Jenkins pipeline stage that runs only on the 'main' branch.

Jenkins

stage('Deploy') {
  when {
    [1] 'main'
  }
  steps {
    [2] 'echo Deploying to production'
  }
}

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Abranch

Bsh

CnotEquals

Dbat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'notEquals' or 'bat' which are incorrect here.

The when { branch 'main' } condition uses branch to check the branch. The sh step runs shell commands.

5fill in blank

hard

Fill all three blanks to define a Jenkins pipeline with a parameter and use it in a stage.

Jenkins

pipeline {
  agent any
  parameters {
    string(name: '[1]', defaultValue: 'world', description: 'Who to greet')
  }
  stages {
    stage('Greet') {
      steps {
        sh "echo Hello, [2]!"
      }
    }
  }
  environment {
    GREETING = '[3]'
  }
}

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ANAME

B${params.NAME}

C"world"

DUSER

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong parameter names or missing parameter syntax.

The parameter name is NAME. To use it in shell, use ${params.NAME}. The environment variable GREETING is set to the default world.