Apidays Paris 2023 - Software and APIs for Smart, Sustainable and Sovereign Societies December 6, 7 & 8, 2023 Kubernetes Gateways: Crafting Seamless Cloud-Native API Management Architectures Pubudu Gunatilaka, Senior Technical Lead at WSO2 ------ Check out our conferences at https://www.apidays.global/ Do you want to sponsor or talk at one of our conferences? https://apidays.typeform.com/to/ILJeAaV8 Learn more on APIscene, the global media made by the community for the community: https://www.apiscene.io Explore the API ecosystem with the API Landscape: https://apilandscape.apiscene.io/

1. Kubernetes Gateways: Crafting Seamless
Cloud-Native API Management
Architectures
December, 2023

2. Hello!
Pubudu Gunatilaka
Senior Technical Lead, WSO2
pubudug@wso2.com

3. The Journey Through Time: The Birth of API Gateways
3

4. The Role of an API Gateway
4

5. The Foundation: Traditional API Management Architectures
5

6. API Creation Workflow in the Traditional Model
6

7. The Cloud-Native API Paradigm

8. ● Kubernetes: The cloud's operating system and container
orchestration platform.
● Automates deployment, scaling, and management of
containers and microservices.
● Enables automatic load balancing, scaling, and self-healing
for applications.
● Provides a unified framework for cloud-native application
management.
● Streamlines resource utilization and supports multi-cloud
portability.
Kubernetes: The Cloud's Backbone
8

9. Key Challenges:
● Monolithic Design
● Incompatible Infrastructure
● Limitations in Leveraging Cloud Benefits
● External Dependencies
● Limited Support for Microservices
● Complex Configurations and Maintenance
● Scalability Bottlenecks
Traditional API Management Meets Kubernetes
9

10. Breaking the Mold: Rethinking API
Management Architectures

11. ● Continuous Development and Open Source Benefits
● Envoy as an Ingress Controller in Kubernetes
● Essential API Management Features
● Support for REST and gRPC Services
● Extensibility options to enhance and customize its capabilities
● Flexible Deployment Patterns
Empowering API Gateway Transformation with Envoy Proxy
11

12. The Cloud Native API Management Architecture
12

13. ● API Standardization: Aims to standardize and streamline API gateway
management in Kubernetes.
● Simplified Configuration: Common interface for easier setup and
maintenance.
● Enhanced Interoperability: Smooth integration with different gateway
implementations.
● Dynamic Automation: Dynamic configuration, scaling, and service discovery.
● Seamless Kubernetes Integration: Effortlessly works within the Kubernetes
ecosystem.
● Community Collaboration: Driven by a diverse developer community for
continuous improvement.
Kubernetes Gateway API Standardization
13

14. Kubernetes Gateway API Standardization…
14

15. As An API Developer
15
apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
name: products-route
spec:
hostnames:
- "gw.apis.com"
rules:
- matches:
- method: POST
path:
type: RegularExpression
value: /products
filters:
- type: URLRewrite
urlRewrite:
path:
replaceFullPath
: /productsList
type: ReplaceFullPath
- type: RequestHeaderModifier
requestHeaderModifier
:
add:
- name: x-product-list
value: "All Products"
backendRefs:
- name: products-microservice
port: 8080
Kubernetes Custom
Resource - HTTPRoute

16. The API Developer and API Product Manager Perspective
16

17. Single Control Plane for Diverse Gateways
17

18. API Gateways evolving into a vital but
commoditized part of infrastructure.
18

19. ● Shifting Developer Focus:
⦿ Developers are freed from the complexities of gateway management.
⦿ Can focus on building and maintaining APIs and core development tasks.
● Key API Management Features:
⦿ API Lifecycle Management
⦿ API Governance
⦿ API Marketplace
⦿ API Version Management
⦿ API Insights…
● Try out WSO2 APK (API Platform for Kubernetes) - https://wso2.com
The Changing Tides: Shifting Focus to API Management
19

20. wso2.com
Thanks!