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Scaling CI/CD for Large Monorepos

CI/CDGitHub ActionsDevOps

When you have dozens of deployable projects in a single repository, traditional one-workflow-per-project approaches hit concurrency limits fast. Here’s how to solve it.

The Challenge

Large monorepos with many independently deployable services need independent versioning, security scanning, and multi-environment deployments - without drowning in workflow files.

The Approach

Dynamic workspace discovery with matrix strategies, artifact-based plan passing, and per-component release automation.

Key Decisions

  • Single workflow with dynamic discovery over per-project workflows to avoid concurrency limits
  • Per-component semantic versioning for independent release cadence
  • GitOps deployment state tracked declaratively
  • Triple security scanning: policy compliance, vulnerability scanning, and custom rules

More details coming soon.