GW Tester
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This document discusses Cloud Native Network Functions (CNFs) and provides an overview of the GW Tester project, which aims to provide an example CNF implementation. It includes links to resources that define CNFs and cloud native principles. The GW Tester project code is open source and focuses on portability, realism, and usefulness through the use of annotations, sidecars, and Helm charts to deploy CNFs on immutable infrastructure managed by an orchestrator using microservices.
![CNFs, CNFs, CNFs…
What is a Cloud Native Network Function (CNF)?
In order to talk about CNFs, we need to define
cloud native [1]. Cloud native systems are, among
other things, a set of loosely coupled services.
These services, also known as microservices, are
deployed onto immutable infrastructure while
being managed by an orchestrator. This paper
includes four links to other papers that detail the
definitions of cloud native, microservices,
immutable infrastructure, and CNFs from an OSI
layer perspective.
https://networking.cloud-native-principles.org/](https://image.slidesharecdn.com/gwtester-210330153229/85/GW-Tester-2-320.jpg)
GW Tester
- 1. GW Tester CNF Reference initiative Victor Morales
- 2. CNFs, CNFs, CNFs… What is a Cloud Native Network Function (CNF)? In order to talk about CNFs, we need to define cloud native [1]. Cloud native systems are, among other things, a set of loosely coupled services. These services, also known as microservices, are deployed onto immutable infrastructure while being managed by an orchestrator. This paper includes four links to other papers that detail the definitions of cloud native, microservices, immutable infrastructure, and CNFs from an OSI layer perspective. https://networking.cloud-native-principles.org/
- 3. Design The Cloud Native Network Function WG (CNF WG) focus is to define the process around evaluating the cloud nativeness of networking applications, aka CNFs. https://github.com/cncf/cnf-wg
- 4. Coding…
- 5. GW Tester project Provide an example of a CNF implementation. • Portable • Realistic • Useful https://github.com/gw-tester/
- 6. Multiple NICs - Scenario Multus and DANM annotations can coexist in a Pod/Deployment definition
- 7. Multiple NICs – Scenario (cont.) NSM requires different approach
- 8. Multiple NICs – Goal Annotations can help to make CNFs portable
- 10. NSE Generic sidecar https://github.com/gw-tester/nse A NSE sidecar implementation that uses: • Multiple services per one endpoint • DownwardAPI feature
- 11. NSE Webhook Injector A Kubernetes Mutating Admission Webhook server that injects the NSE Generic sidecar
- 12. GW Tester – Helm charts https://github.com/gw-tester/helm-charts
- 13. Backup
- 14. Naming NICs - Scenario Deterministic approach
- 15. Naming NICs – Scenario (cont.) Semi-deterministic approach
- 16. Naming NICs – Scenario (cont.) Auto discovery approach with network awareness https://github.com/networkservicemesh/networkse rvicemesh/blob/v0.2.0/sdk/endpoint/connection.go #L83
- 17. GW Tester – IP discover (go-lang) https://github.com/gw-tester/ip-discover
Editor's Notes
- #9: Define it once use it anywhere - Portability