The telecommunications industry is rapidly advancing with the adoption of cloud-native technologies, aiming to enhance service delivery and network management. Kubernetes, an open-source platform for automating containerized applications, plays a significant role in this transformation. However, the use of Kubernetes in telecommunications presents unique challenges, particularly in effective network traffic separation. This thesis explores the feasibility and implications of exposing services on secondary network interfaces in Kubernetes to address traffic separation issues. The research investigates current trends and approaches for enabling service exposure on secondary interfaces, evaluates how these services support Kubernetes' resiliency features, and assesses the performance implications. A combination of literature review, empirical experiments, and interviews was used. Initially, a proof of concept (PoC) using Multus-service was attempted but faced setbacks due to the project's deactivation. Developer interviews revealed resistance within the Kubernetes SIG-Network group to modifying the established services API for secondary interfaces, and a lack of compelling use cases and community feedback led to the deprecation of Multus-service. Current trends indicate a shift towards more scalable, less disruptive solutions like the Gateway API. The focus then shifted to Meridio, another project claimed to have the capability of enabling service exposure through secondary interfaces. A successful PoC with Meridio in an OpenShift cluster served as the basis for further evaluations. The findings indicate that Meridio has the capability of providing service exposure through secondary network interfaces and aligns with Kubernetes' self-healing mechanisms. Performance evaluations showed that services on secondary interfaces could offer comparable overall performance to those on primary interfaces. Resource utilization metrics reveal additional CPU and memory overheads, but these are considered manageable. This research provides insights into the use of secondary network interfaces for service exposure in Kubernetes, contributing to ongoing discussions within Ericsson Cloud-RAN. The research underscores the need for further development and optimization, suggesting that with continued advancements, service exposure through secondary interfaces could enhance network management and service delivery in cloud-native environments.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:mdh-67565 |
| Date | January 2024 |
| Creators | Levin, Kai |
| Publisher | Mälardalens universitet, Akademin för innovation, design och teknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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