On Google Cloud Platform
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is the Broad Institute's open-source workflow execution engine, designed to run (WDL) workflows on local or cloud infrastructure. Google Cloud provides the , which:
Manages, processes, and transforms life sciences data
Orchestrates task execution on Google Compute Engine instances
Was formerly known as the Pipelines API
When using Cromwell on Google Cloud with , the process flows as follows:
Workbench submits the workflow to Cromwell
Cromwell generates individual task definitions
Cromwell dispatches tasks to Google Compute Engine via Cloud Life Sciences API
Tasks execute on Google Compute Engine instances using specified containers and resources
Outputs write to Google Cloud Storage
Cromwell returns results to Workbench
Workbench monitors and reports status throughout this process, as detailed in the .
For simplified setup, we provide a Terraform-based installer script that supports both single-project and multi-project architectures.
The deployment uses Cloud Run as the ingress point for Cromwell requests, as the Cromwell server isn't directly internet-accessible. Requests require a GCP identity token from an authorized principal (user or service account).
For complete deployment instructions, refer to the .