Cloudflare engineers discovered that a Kubernetes safe default, which waits for all volumes to be unmounted before allowing a pod restart, was causing 30-minute delays each time their Atlantis Terraform management tool restarted. By adding a single line to their StatefulSet configuration to set terminationGracePeriodSeconds to 0, they eliminated the wait, saving an estimated 600 hours of blocked engineering time annually. This fix highlights how a well-intentioned default can become a bottleneck as systems scale.
Background
Kubernetes is a container orchestration platform widely used for managing cloud-native applications, with features like persistent volumes for stateful workloads. Cloudflare uses it to run Atlantis, a tool for automating Terraform changes via Git workflows.
- Source
- Lobsters
- Published
- Mar 27, 2026 at 11:36 PM
- Score
- 6.0 / 10