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Dezmerean Robert
Dezmerean Robert

Posted on • Updated on

Setup a Jenkins CI/CD pipeline for AltWalker

#jenkins #python #testing

This tutorial should help you setup a CI/CD pipeline on Jenkins for your AltWalker tests.

Table Of Contents

Create your first Pipeline

  1. Copy one of the examples below into your repository and name it Jenkinsfile. Try modifying the sh command to run the same command you would run on your local machine.

    pipeline {
    agent { 
        docker { 
            image 'altwalker/altwalker:latest'
            args '-u root:root'
        }
    }
    stages {
        stage('test') {
            steps {
                sh 'altwalker online tests -m model/default.json "random(vertex_coverage(100))"'
            }
        }
    }
}

  2. Click the New Item menu within Jenkins

  3. Provide a name for your new item (e.g. My-AltWalker-Pipeline) and select Multibranch Pipeline.

  4. Click the Add Source button, choose the type of repository you want to use and fill in the details.

  5. Click the Save button and watch your first Pipeline run!

Quick Start Examples

Below are some easily copied and pasted examples of a simple Pipeline for Python and .NET.

Python 

pipeline {
    agent {
        docker {
            image 'altwalker/altwalker:latest'
            args '-u root:root'
        }
    }
    stages {
        stage('test') {
            steps {
                sh 'altwalker online tests -m models/model.json "random(vertex_coverage(100))"'
            }
        }
    }
}
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.NET 

pipeline {
    agent {
        docker {
            image 'altwalker/altwalker:latest-dotnet-3.1'
            args '-u root:root'
        }
    }
    stages {
        stage('test') {
            steps {
                sh 'altwalker online tests --language dotnet -m models/model.json "random(vertex_coverage(100))"'
            }
        }
    }
}
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For more information about all the tags supported by the AltWalker docker images check out the docker repository for altwalker/altwalker.

Setup XML Reports

After you setup for first pipeline:

  1. To generate the XML reports add the --report-xml to your online or walk command.

  2. Inside the Jenkinsfile after the online or walk command add the following line:

    junit 'report.xml'

For a python project the Jenkinsfile should look like this:

pipeline {
    agent {
        docker {
            image 'altwalker/altwalker:latest'
            args '-u root:root'
        }
    }
    stages {
        stage('test') {
            steps {
                sh 'altwalker online tests -m models/model.json "random(vertex_coverage(100))" --report-xml'
                junit 'report.xml'
            }
        }
    }
}
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Using a Dockerfile

For projects which require a more customized execution environment, Pipeline also supports building and running a container from a Dockerfile in the source repository.

  1. Copy one of the examples below into your repository and name it Dockerfile:

    FROM altwalker/altwalker:latest

# Install your specific requirements

  2. Replace image 'altwalker/altwalker:latest' with dockerfile true from one of the previous example.

In contrast to the previous approach of using an "off-the-shelf" container, using the agent { dockerfile true } syntax will build a new image from your Dockerfile rather than pulling one from Docker Hub.

For a python project the Jenkinsfile should look like this:

pipeline {
        agent { 
            docker { 
                dockerfile true
                args '-u root:root'
            }
        }
        stages {
            stage('test') {
                steps {
                    sh 'altwalker online tests -m model/default.json "random(vertex_coverage(100))"'
                }
            }
        }
    }
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The agent { dockerfile true } syntax supports a number of other options which are described in more detail in the Pipeline Syntax section.

Examples

For a fully working example you can check out:

Resources

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