Jenkins Pipeline: How to archive artifacts when the build fails?

Question

When our browser based tests fail, we take a screenshot of the browser window to better illustrate the problem. However, I don't understand how to archive them in my pipeline, because the pipeline stops after the failure. Same for the junit.xml, I'd also like to use it in error cases.

I've checked, the screenshots are generated and stored correctly.

My definition looks like this (irrelevant things mostly trimmed):

node {
   stage('Build docker container') {
       checkout([$class: 'GitSCM', ...])
       sh "docker build -t webapp ."
   }
   stage('test build') {
       sh "mkdir -p rspec screenshots"
       sh "docker run -v /var/jenkins_home/workspace/webapp/rspec/junit.xml:/myapp/junit.xml -v /var/jenkins_home/workspace/webapp/screenshots:/myapp/tmp/capybara -v webapp bundle exec rspec"
   }
   stage('Results') {
      junit 'rspec/junit*.xml'
      archive 'screenshots/*'
   }
}

Answer 1

You can use simple Java try/catch to avoid pipeline failure on test failure, or Jenkins catchError like this :

node {
    catchError {
        // Tests that might fail...
    }
    // Archive your tests artifacts
}

Answer 2

From here, you can use the post section in your pipeline:

pipeline {
    agent any
    stages {
        stage('Build') {
            ...
        }
        stage('Test') {
            ...
        }
    }

    post {
        always {
            archive 'build/libs/**/*.jar'
        }
    }
}