Example usage of credentials parameters for scripted pipelines

Jenkinsfile

// build parameters can insert user credentials for the entire pipeline
/*
properties([
  parameters([
    credentials(credentialType: 'com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl',
                defaultValue: '',
                description: 'Production deployment key',
                name: 'deployKey',
                required: true)
  ])
])
*/
node {
  stage('Build') {
    sh './build.sh'
  }
  stage('Deploy') {
    // alternatively, we can use an input step to insert user credentials when needed
    input message: 'Select deployment credentials', parameters: [
      credentials(credentialType: 'com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl',
                  defaultValue: '',
                  description: 'Production deployment key',
                  name: 'deployKey',
                  required: true)
    ]
    withCredentials([
      usernameColonPassword(credentialsId: 'deployKey', variable: 'DEPLOY_KEY')
    ]) {
      sh 'curl -u "$DEPLOY_KEY" -XPOST https://webhooks.example.com/promote/'
    }
  }
}