Kubernetes Replica Count Manager

This tool provides an API alongside the native Kubernetes deployment controller to manage the pod replica count of deployment resources.

You can find this on my GitHub at https://github.com/calvinbui/k8s-replica-count-manager.

From developing this application, I learnt:

This application is based off the Level 5 challenge from Gravitational/Teleport


  • List, Set and Get desired replica counts across all namespaces
  • Automatically scale Deployments to the stored replica count value
  • Provides a single source of truth for replica counts of all resources
    • Deployments and upgrades may reset the replica counts back to a previous number
    • Replica counts may be modified by external actors
  • Docker image
  • Helm chart
  • Served over gRPC
  • Supports mTLS
  • GitHub Actions workflow