(1) Developed and maintained the BeeGFS CSI plugin, delivering stable, scalable storage orchestration and reliable mounting for Kubernetes workloads.
(2) Designed and implemented a Kubernetes-native infrastructure to automate BeeGFS kernel module client upgrades, provisioning, and monitoring at large scale. Built an integrated set of Golang components, deployed via Helm with cert-manager TLS:
* BeeGFS Client Agent (DaemonSet): Runs on every node to dynamically install/uninstall kernel modules based on live Pod usage, auto-cleans unused versions, and exports detailed Grafana metrics .
* Admission Webhook (Deployment): Intercepts Pod creation, transparently rewrites PVCs according to filesystem labels, selects client versions from a central ConfigMap, and enables canary/gray rollout strategies.
Volume Operator (DaemonSet): Synchronizes PV/PVC state with a centralized metadata store on each node, tracks cluster-wide volume status, and pre-provisions volumes for new client versions.
(3) Designed and built a multi-cluster management platform to streamline PVC lifecycle and observability:
* Centralized Database: Volume configuration stored in PostgreSQL with carefully designed schema.
* Management Console (Frontend + API): Unified dashboard for admins to monitor PVC health and execute bulk operations.
* Custom Kubernetes Operator (Go): Deployed per cluster to automate PVC creation, reconciliation, and deletion per central instructions.
(4) Architected a governance and access control layer for volume management
* Built a centralized system to manage business-level volume configurations, including service-to-volume mappings, automatic mount policies, and default container mount paths.
* Designed the IAM and authorization model to define service/team-level permissions on storage resources.
* Implemented Kubernetes Mutating/Validating Admission Webhooks to intercept Pod creation and enforce mount authorization in real time, preventing unauthorized PVC attachments.
