DeeTune: Design and Application of an eBPF-based Network Framework for Baidu

Abstract

With the development of cloud computing and the continuous development of infrastructure, architecture upgrades and other technologies, Baidu's internal services are gradually moving to the cloud environment. Although the efficiency of services has increased significantly, some shortcomings and deficiencies of the basic capabilities of the cloud environment have gradually become apparent, resulting in the inability to meet some reasonable requirements of the enterprise, such as building the topology relationship between different microservices and conducting the test session for The traditional way of implementation is to record the real traffic to reflect and verify the function and so on. The traditional way of implementation is often to implant the code into the business system to make changes. However, given the diversity of business forms and technologies, the conventional way has a lot of problems in terms of business intervention, communication and coordination, performance, stability, and other aspects. In this paper, we introduce Baidu's eBPF-based network framework: DeeTune, which provides the ability to create service topology, record traffic, monitor non-intrusive metrics, etc., further improve the efficiency of SRE and quality assurance.