Rollback strategies in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a rollback stage in a Jenkins pipeline.

Jenkins

stage('Rollback') {
    steps {
        sh '[1]'
    }
}

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Arollback.sh

Becho Rollback initiated

Cdeploy.sh

Dbuild.sh

Attempts:

3 left

💡 Hint

Common Mistakes

Using deploy.sh instead of rollback.sh

Forgetting to use the shell command

Using echo instead of running a script

The rollback stage runs the rollback.sh script to revert changes.

2fill in blank

medium

Complete the code to trigger rollback only if the deployment fails.

Jenkins

post {
    failure {
        script {
            [1]()
        }
    }
}

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Adeploy

Btest

Cbuild

Drollback

Attempts:

3 left

💡 Hint

Common Mistakes

Calling deploy() on failure

Calling build() or test() instead of rollback()

Not calling any function

The rollback() function is called when the deployment fails to revert changes.

3fill in blank

hard

Fix the error in the rollback script call to use the correct Jenkins syntax.

Jenkins

steps {
    [1] 'rollback.sh'
}

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Ash

BexecuteShell

CrunShell

Dshell

Attempts:

3 left

💡 Hint

Common Mistakes

Using executeShell or runShell which are not Jenkins steps

Using shell instead of sh

Jenkins uses sh to run shell scripts in pipeline steps.

4fill in blank

hard

Fill both blanks to define a rollback stage that runs a shell script and echoes a message.

Jenkins

stage('Rollback') {
    steps {
        [1] 'rollback.sh'
        [2] 'Rollback completed successfully'
    }
}

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Ash

Becho

Crun

Dscript

Attempts:

3 left

💡 Hint

Common Mistakes

Using run instead of sh

Using script instead of echo

Mixing up the order of commands

The sh step runs the rollback script, and echo prints a message.

5fill in blank

hard

Fill all three blanks to create a rollback stage that runs a script, checks a condition, and echoes a message.

Jenkins

stage('Rollback') {
    steps {
        [1] 'rollback.sh'
        script {
            if (currentBuild.result == '[2]') {
                [3] 'Rollback was successful'
            }
        }
    }
}

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Ash

BSUCCESS

Cecho

DFAILURE

Attempts:

3 left

💡 Hint

Common Mistakes

Checking for SUCCESS instead of FAILURE

Using run instead of sh

Using print instead of echo

The rollback script runs with sh. The condition checks if the build result is FAILURE. Then echo prints a success message.