Shlomi Tubul developed external NodePort-based access for Celeborn master replicas in the apache/celeborn repository, focusing on cloud-native networking integration. He implemented per-master NodePort services, allowing users to enable or disable external exposure and customize port settings through Helm Charts and Kubernetes configuration. The solution included support for Kubernetes exposure annotations, providing flexibility for deployment in diverse environments. Written primarily in YAML, the work addressed the need for granular control over service accessibility without introducing major bug fixes. The feature demonstrated a focused, in-depth approach to extending Celeborn’s networking capabilities, enhancing its integration with Kubernetes-native infrastructure and deployment workflows.