Matrix builds for multi-platform in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a matrix build with two platforms.

Jenkins

matrix {
    axes {
        axis {
            name 'PLATFORM'
            values [1]
        }
    }
}

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

A['linux', 'windows']

B'linux windows'

Clinux, windows

D'linux', 'windows'

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around platform names

Using spaces instead of commas to separate values

The values field expects a list of strings separated by commas and enclosed in quotes.

2fill in blank

medium

Complete the code to run a shell command in the matrix build.

Jenkins

steps {
    sh '[1]'
}

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

Aecho Hello from $PLATFORM

Bprint Hello from $PLATFORM

Cecho Hello from PLATFORM

Decho 'Hello from PLATFORM'

Attempts:

3 left

💡 Hint

Common Mistakes

Using print instead of echo

Not using the $ sign before PLATFORM

The sh step runs shell commands. To use the matrix variable, use $PLATFORM inside the command.

3fill in blank

hard

Fix the error in the matrix axis definition.

Jenkins

matrix {
    axes {
        axis {
            name [1]
            values 'linux', 'windows'
        }
    }
}

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

A"PLATFORM"

B'PLATFORM'

CPLATFORM

Dplatform

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the axis name

Using double quotes inconsistently

The name must be a quoted string. Single quotes are preferred in Jenkinsfiles.

4fill in blank

hard

Fill both blanks to define a matrix with OS and JDK versions.

Jenkins

matrix {
    axes {
        axis {
            name [1]
            values 'linux', 'windows'
        }
        axis {
            name [2]
            values 'jdk8', 'jdk11'
        }
    }
}

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

A'OS'

B'JDK'

C'PLATFORM'

D'JAVA_VERSION'

Attempts:

3 left

💡 Hint

Common Mistakes

Using inconsistent or unclear axis names

Not quoting the axis names

The first axis is commonly named OS for operating system, and the second axis JDK for Java versions.

5fill in blank

hard

Fill all three blanks to run a shell command using both matrix variables.

Jenkins

steps {
    sh 'echo Building on [1] with [2] and version [3]'
}

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

A$OS

B$JDK

C$JAVA_VERSION

D$PLATFORM

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing variable names or forgetting the $ sign

Using undefined variable names

Use $OS and $JDK for the first two variables, and $JAVA_VERSION for the version variable in the shell command.