This document discusses automating an integrated API supply chain using a cloud-native architecture. It defines cloud nativeness and provides a reference cloud-native architecture. This includes layers for infrastructure, provisioning, runtime, orchestration, application definition, and more. It also discusses how to implement this for an API-led integration platform using Kubernetes, WSO2 API operators, and automated pipelines. The goal is to apply technologies to produce and deliver APIs with minimal human intervention.

1. Automating an Integrated API Supply
Chain Using a Cloud-Native Architecture
September, 2020
chathurak@wso2.com
Lead Solutions Engineer_
Chathura Kulasinghe_

2. What is “Cloud Nativeness”?

3. “Cloud Nativeness” at-a-glance
● Things?
⦿ Technologies that help to
Create, Deploy & Run Applications
in Scalable environments
● Qualities?
⦿ Immutability (of runtime)
⦿ Fast startup
⦿ Low footprint
⦿ Fast, dynamic Scaling
⦿ Rollout & rollback
⦿ Decentralisation ...
3
Functional
Linux/OS
Virtualization
Cloud
Containers
K8s, Cloud
Orchestration
Application
Binary
Interface
W
eb
Services
Service
Oriented
Architecture
Endpoints
Cloud
N
ative
Physical
Application
Program
m
ing
Interface
https://storageos.com/launching-cloud-native-london

4. Technologies empower organizations to
build and run scalable applications in
dynamic environments such as public,
private, and hybrid clouds.

5. Cloud-native reference architecture by
5
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development Application definition / composition / configuration
Orchestrationn / Observability
Container runtime (CRI, CNI, CSI)
Container Runtime, Container Network, Container Storage Interfaces
Host Management
(DevOps tooling & Provisioning)
Private / Public / Hybrid

6. Cloud-native reference architecture by
6
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development
The Actual Computing Resources
● Bare-metal machines networked
together in a data-centre
● Virtual machines in a virtual network
(i.e. VMWare, CloudStack, Openstack)
● Google, Microsoft Azure, Amazon
cloud platforms
● A combination of the above (hybrid)

7. Cloud-native reference architecture by
7
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development
Host Management
● Installation and Maintenance
(updates, patches) of Operating
Systems
● e.g: CoreOS and RancherOS are
specialized host operating systems
that compliment containerized
environments

8. Cloud-native reference architecture by
8
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development
The Container Runtime
● Container Runtime Interface (CRI)
allows different implementations of container
runtimes (i.e. Docker, rkt, CRI-O)
● Container Network Interface (CNI)
allows different container network runtime
implementations (i.e. Default: BRIDGE, VLAN, IPVLAN,
DHCP, loopback OR Thrid-party: Weave, Calico, Cilium,
Flannel, WMWare, NSX).
● Container storage interface (CSI)
provides a common standard for container
orchestration platforms to use persistent storage
provided by different vendors.

9. Cloud-native reference architecture by
9
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development
Container Orchestration
● To manage containerized application
deployments across multiple
container host machines.
(Kubernetes, Cloud Foundry, Mesos, Nomad)
● Container scheduling, provisioning,
launching and discovery
● Monitoring, tracing and crash recovery
● Routing, load-balancing, and policy
enforcements
● Declarative system configuration

10. Cloud-native reference architecture by
10
Infrastructure (Bare-metal / Cloud)
Provisioning
Runtime
Orchestration & Management
Application Definition / Development The Application Definition
● Cloud-native application developers
mainly engage with this layer
● Languages, Frameworks, Registries,
Data, CICD
● Application-specific configurations
● Image repositories

11. 11

12. WSO2 API & Integration Platform

13. 13
Design Center Engagement
Monitoring, Management and
Analytics
Runtime
DevOps Identity &
Access
Integration Studio Streaming Editor
API Design &
Mocking
API Publisher
API Portal API Marketplace
Connector Store
Monetization &
Billing
API
Administration
API Analytics
Integration
Dashboard
Tracing and
Monitoring
API Gateway
Micro Integrator Micro Gateway
Traffic Manager
Streaming
Integrator
Key Manager
Kubernetes Operators
Identity Manager
Access
Management
Single Sign-on
MFA & Adaptive
Auth
WSO2 Managed
Cloud
CI/CD
WSO2 Update
Manager
WSO2 CLI
Toolkits
WSO2 - a full featured API and integration platform
OnPrem Hybrid WSO2 Cloud AWS Azure Pivotal CF Kubernetes

14. The “API Supply Chain” & Automation
14
https://thenewstack.io/a-successful-api-strategy-needs-a-digital-supply-chain-and-a-thriving-ecosystem/
— Create and apply technologies
to produce and deliver goods and services
with minimal human intervention.

15. CN reference architecture for an API-led integration platform
15

16. CN reference implementation (API-led integration platform) by using Kubernetes 16

17. WSO2 Kubernetes API Operator in Action...
apictl add api
-n products-api
--from-file=products_swagger.yaml
products_swagger.yaml
K8s
API Server Target Endpoint
API (CRD+Controller)
Security
Rate Limiting
Run Kaniko
Build Image
Push to Registry
Create
- Service
- Pods
- Deployment
- HPA
Deploy in Cluster
Config-map
API Operator
Service
Deployment
HPA
Pods
Registry
17

18. WSO2 API Operator for Kubernetes
● Hides complexities in API
Deployment
● Simplifies publishing process of a
service as a managed API
● Handles autoscaling of the API
gateway runtime
● Facilitates promoting/demoting
APIs between/among environments
18

19. 19
Automated API-led integration platform pipeline

20. 20
Functional
Linux/OS
Virtualization
Cloud
Containers
K8s, Cloud
Orchestration
Application
Binary
Interface
W
eb
Services
Service
Oriented
Architecture
Endpoints
Cloud
N
ative
Physical
Application
Program
m
ing
Interface
The first rule of any technology used in a business is that automation applied to an efficient operation will magnify
the efficiency. The second is that automation applied to an inefficient operation will magnify the inefficiency.
— Bill Gates

21. Technology Partner of your API Strategy and Implementation
21
https://wso2.com/strategic-consulting/
https://wso2.com/contact/
chathurak@wso2.com
https://www.linkedin.com/in/ck008
https://github.com/wso2/reference-architecture/blob/master/r
eference-cloud-native-architecture-digital-enterprise.md
Image: https://www.crn.com/news/cloud/crn-exclusive-new-google-cloud-partner-advantage-program-launches-today