An Emerging Architecture Pattern for Agile Integration: Cell-based Architecture
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Presented at: All Things Open 2019 Presented by: Asanka Abeysinghe, WSO2, Inc
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An Emerging Architecture Pattern for Agile Integration: Cell-based Architecture
- 1. Asanka Abeysinghe Cell-based Architecture An Emerging Architecture Pattern for Agile Integration Deputy CTO & VP of Architecture - CTO Office WSO2 Inc.
- 2. Objectives #1 why: a new pattern #2 how: created the pattern #3 what: is Cell-based architecture
- 3. Motivation
- 4. Centralized & Layered picture credit: https://www.flickr.com/photos/kaktuslampa/
- 6. picture credit: https://www.flickr.com/photos/johnerlandsen/ Reality of the Enterprise
- 7. Brownfield > Greenfield picture credit: https://www.apstra.com/home/landscape-of-meadow-field-with-the-changing-environment-2/ Legacy, monolithic Microservices, sprawl
- 8. Reference Implementations picture credit: https://www.marinersmuseum.org/
- 9. picture credit: http://unlocked.footlocker.com/ Underutilization of the Technology
- 10. Gap: architecture | development | deployment picture credit: https://www.flickr.com/photos/28994379@N02/
- 11. picture credit: https://www.solarpowerworldonline.com/2017/07/georgia-contractor-sells-farmers-solar-tough-market/ Dependency management
- 13. Timeline
- 15. picture credit: https://www.flickr.com/photos/23119666@N03/ A platform with an agile team 100 APIs, 60 message flows, 80 services, n DBs Multi-tenanted, 3 active tenants First release after 3 years
- 16. picture credit: https://www.flickr.com/photos/imcountingufoz/ Rise of Microservices
- 17. Pragmatic Microservices Netflix: APIs Uber: Edge Gateway eBay: API Facade Gartner: Mini Services
- 18. Background: Layered Architecture with MSA
- 19. Background: Segmented Architecture BS-1 BS-2 BS-n G-1 G-2 US-1 US-n
- 20. Platform of Platforms Platform (shared capabilities) Project1 Project2 Project3 Projectn Platform (shared capabilities) Project1 Project2 Project3 Projectn Platform (shared capabilities) Project1 Project2 Project3 Projectn Platform (shared capabilities) Project1 Project2 Project3 Projectn CI/CD User Store
- 22. Making of…… picture credit: https://commons.wikimedia.org/wiki/User:Frank_Schulenburg CC BY 3.0
- 25. Business vs technical services picture credit: https://www.flickr.com/photos/arpadlukacs/
- 26. Service: Technical definition A code exposes through an interface that describes a collection of operations that are network accessible using a standardized messaging protocol.
- 27. Service: Business definition Software components that can be spontaneously discovered, combined, and recombined to provide a solution to a business problem.
- 28. Microservice: Technical definition A microservice must have a single purpose and be loosely coupled in design and deployed independently of other microservices. "Micro" is a concept of scope rather than size.
- 29. Microservice: Business definition Microservices is an approach to application development in which a large application is built as a suite of modular components or services. These services are built around business capabilities.
- 31. The cell is the basic structural, functional, and biological unit of all known living organisms
- 33. Component: Atomic Units A component represents a process or business logic running in a container, serverless environment, or an existing runtime. A component is designed based on a specific scope, which can be independently run and reused at the runtime.
- 34. Cell: Units of Enterprise Architecture A cell is a collection of components, grouped from design and implementation into deployment. A cell is independently deployable, manageable, and observable.
- 36. Connected Cells picture credit: https://www.medicalnewstoday.com/
- 37. Control Plane: - Signaling of the network - Makes decisions about the traffic flow Data Plane: - Forwards traffic between hops - Takes data packets picture credit: https://www.flickr.com/photos/teflon/ Management Plane: - Configure - Observeabiltty, Monitor
- 38. Inter and Intra Cell communication Local-mesh Global-mesh DP- data plane CP- control plane MP- management plane
- 39. Connected Cells Cell gateway (ingress) Sidecar (egress) Adaptor (egress) Ambassador (egress)
- 40. API-centric Architecture picture credit: https://www.flickr.com/photos/hugh_nelson/
- 41. API-centric Architecture Pull APIs - RESTful HTTP, gRPC Push APIs - Events JMS, AMQP, SMTP - Streams Kafka, MQTT
- 42. Gateway Pattern picture credit: https://www.flickr.com/photos/ell-r-brown/
- 43. Automated Governance (Re)-enables Flow Policy Store (Registry) Observability (Monitoring/ Analytics) Policy Enforcement (GW) Automated governance is made of three things: A source of truth: Policy store/registry Enforcement of the policy Gateway or plugin attempting to keep the desired state Observability How close to the desired state are we?
- 45. Developer Experience (DX) of a Cell
- 46. Creating Cells Brand new Cell Existing (micro)services Update an existing Cell Create a new version
- 48. Lifecycle of a Cell
- 51. Structured Agility Versioned Components Versioned Cells Dependency managed Autowired Reusable Enhanced MSA & CNA
- 54. Cell Types Cell Type Components Logic Microservices, Functions, MicroGateways, lightweight storages Integration MicroESB or other integration microservices, lightweight storage and/or cache Legacy Existing systems, legacy services External SaaS and partner systems Data RDBMS, NoSQL, File, Message Broker* Identity IDP, user stores Channel Web Apps, IoT, mobile apps
- 59. Human-centric Architecture picture credit: https://www.vertoanalytics.com/human-vs-data-centric-marketing/
- 60. Cells and Podular (cellular) Organizations
- 61. Measure the success picture credit: https://www.marketingdonut.co.uk/direct-marketing/running-a-direct-mail-campaign/getting-the-measure-of-your-marketing
- 63. Self-contained Deployable as a unit Independently elastic Data, control & management plane Summary: Cell-based Architecture
- 64. Contribution: walk the talk picture credit: https://www.omgubuntu.co.uk/2018/06/microsoft-buying-github
- 65. picture credit: https://www.flickr.com/photos/josephmorris/ Just a (steady) start https://github.com/wso2/reference-architecture
- 66. picture credit: https://www.flickr.com/photos/vasile23/ https://github.com/wso2/reference-methodology Reference Methodology
- 68. Cellery - simple composition and graphical view
- 69. Cellery - 0.4.0 • Stateful cells • Composites (naked cells) ◦ Includes Observability, Composite patch, and Composite advanced deployments with Blue-Green and Canary. • Simpler cell testing (telepresence) and inline tests • Enhanced routing based on incoming headers • Support for ConfigMaps, and Secrets • Performance improvements on Cell startup • Support for Envoy as Cell gateway • Istio upgrade to 1.2.2 • WSO2 SP as mixer adapter to collect
- 70. Cellery - in K8s
- 71. A cloud-native programming language for microservices and APIs - A compiled, transactional, statically and strongly typed programming language with textual and graphical syntaxes. - Incorporates fundamental concepts of distributed system integration - Offers a type safe, concurrent environment to implement microservices with distributed transactions, reliable messaging, stream processing, and workflows - Compiles into container images for deployment on Kubernetes and Docker https://ballerina.io/
- 72. Ballerina - code and visual syntax in sync
- 73. picture credit: https://www.flickr.com/photos/infomatique/ Invitation to consume and contribute https://github.com/wso2/reference-architecture https://github.com/wso2/reference-methodology https://ballerina.io https://cellery.io