WDLs Resources

Documentation for the Workflow Description Language. For a gentle introduction on how to write WDL workflows, check out Getting Started with WDL.

Sections

• Getting Started with WDL
  • Base structure
  • Add variables
  • Add plumbing
  • Validate syntax
  • Specify inputs
• Getting Started WDL Tutorials
  • WDL puzzles: Hands-on practice for scripting and configuring Terra workflows
  • (howto) Install software for WDL workshops
  • [1] (howto) Write your first WDL script running GATK HaplotypeCaller
  • [2] (howto) Write a simple multi-step workflow
  • [3] (howto) Run a sample variant discovery mini-pipeline
• Frequently Asked Questions (WDLs)
  • Which workflow execution engines support WDL? What is Cromwell?
  • What do I need to set up to write and execute WDL workflows?
  • How can I run different versions of Java on the same computer?
  • Can runtime parameter values be generated dynamically?

Articles

• Overview: Getting started with WDL