Run concurrent CI tests on shared Kubernetes environments without spinning up ephemeral infrastructure. Save 20-25 minutes per CI run while testing against real services and data.

MetalBear

mirrord for CI enables running concurrent CI tests on shared Kubernetes environments without spinning up ephemeral infrastructure. Instead of deploying code to cloud environments or using local Kubernetes tools like minikube, the service runs in the CI runner while mirrord proxies traffic, environment variables, and files between it and the cluster. This approach provides realistic testing against production-like services and data while saving 20-25 minutes per CI run and reducing cloud costs. The tool includes isolation features like HTTP traffic filtering, database branching, and queue splitting to safely run multiple concurrent tests on shared clusters. Available for Enterprise plan users, it works with major CI providers including GitHub Actions, GitLab CI, and CircleCI.

Introducing mirrord for CI

Why traditional CI pipelines slow developers #

Don’t let your team suffer through slow CI #