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Technologies Overview

This repository is built around a small set of core platform technologies that work together to deliver the Common Hosted Workflow service.

At a high level:

  • OpenShift is the runtime platform.
  • Helm is the deployment composition layer.
  • n8n is the workflow runtime.
  • PostgreSQL with PGO is the primary persistence layer.
  • Redis supports queue execution and authentication/session state.
  • Keycloak and OIDC provide the authentication model.
  • Terraform provisions selected infrastructure outside the Helm path.
  • Sysdig provides monitoring and alerting.

Stack View​

How To Read This Section​

The pages in this section are ordered from platform foundation to supporting tooling:

  1. OpenShift: where the platform runs
  2. Helm: how deployments are composed
  3. n8n: the core workflow runtime
  4. PostgreSQL & PGO: durable data layer and database operations model
  5. Redis: queue and session/state support
  6. Keycloak & OIDC: authentication model
  7. Terraform: infrastructure-as-code for selected resources
  8. Sysdig: monitoring and alerting
  • For hosting and runtime topology, see Platform Architecture.
  • For deployment and promotion mechanics, see CI/CD Overview.
  • For Gold/GoldDR continuity and backups, see the Platform section.