Webinar: Monitoring & Orchestrating Your Microservices Landscape using Workflow Automation

1. Monitoring & Orchestrating Your Microservices Landscape using Workflow Automaton 11 March 2020

2. 2 Today’s Presenter Bernd Ruecker Co-founder & Chief Technologist, Camunda @berndruecker http://berndruecker.io/

3. 3 Housekeeping • The webinar is being recorded • The recording and slides will be made available after the webinar • Please post questions via the GoToWebinar control panel

4. Monitoring & Orchestrating Your Microservices Landscape using Workflow Automation @berndruecker

5. Software is eating the world. Marc Andreessen, Entrepreneur & Investor 2011 in „The Wall Street Journal“ „ Photo by techcrunch, available under Creative Commons BY 2.0 license.

6. “We are a Tech Company” Goldman Sachs CEO Lloyd Blankfein 6 https://www.bloomberg.com/view/articles/2018-02-15/lloyd-blankfein-wants-goldman-sachs-to-push-technology

7. 7 Today, every company is becoming a software company and developers are at the center of digital transformation; they drive business processes and functions across organizations from customer service and HR to marketing and IT. And the choices these developers make will increasingly determine value creation and growth across every industry. https://news.microsoft.com/2018/06/04/microsoft-to-acquire-github-for-7-5-billion/

8. Traditional enterprises cannot relax! 8 https://www.forbes.com/sites/mayrarodriguezvalladares/2019/02/14/ bigtech-poses-a-greater-threat-to-financial-institutions-than-fintech/

9. Change is the only constant „ We don‘t know what we will need tomorrow. But we do know that we will need something. We have to be able to move quickly! CIO of a German insurance company in 2019

10. And you?

11. Credit Card Handling Payment RESTOrder Fulfillment REST DBPaymentId Amount Status 1 100 $ Collected 2 125 $ Open Reporting of overdue payments {script} Fixing open payments Scheduler to process open payments Damn it – we need a date! …to be continued…

12. Wild West Integration

13. “People were saying that groups needed to communicate more. Jeff got up and said, ‘No, communication is terrible!’ ” https://www.fastcompany.com/50106/inside-mind-jeff-bezos-5

14. Some Service Some Service Some Service Some Service Some Service Some Service Some Service Autonomous Microservices…

15. Simplified example: dash button Photo by 0xF2, available under Creative Commons BY-ND 2.0 license. https://www.flickr.com/photos/0xf2/29873149904/ @berndruecker

16. Three steps… @berndruecker

17. (Micro-)services Checkout Payment Inventory Shipment @berndruecker

18. Order Placed Payment Received Goods Fetched Notification Checkout Payment Inventory Shipment Event-driven architecture @berndruecker

19. Peer-to-peer event chains Checkout Payment Inventory Shipment Order placed Payment received Goods shipped Goods fetched @berndruecker

20. Peer-to-peer event chains Checkout Payment Inventory Shipment Order placed Payment received Goods shipped Goods fetched @berndruecker

21. The danger is that it's very easy to make nicely decoupled systems with event notification, without realizing that you're losing sight of that larger-scale flow, and thus set yourself up for trouble in future years. https://martinfowler.com/articles/201701-event-driven.html @berndruecker

24. Phil Calcado at QCon NYC 2019

25. API API API API API API API Microservices External Services Standard Software „What the hell just happened?“ @berndruecker

26. Process Events Monitoring Camunda Optimize Order placed Payment received Goods fetched Goods shipped @berndruecker Order placed Payment received Goods fetched Goods shipped

27. Demo

28. Peer-to-peer event chains Checkout Payment Inventory Shipment Order placed Payment received Goods shipped Goods fetched Fetch the goods before the payment @berndruecker

29. Peer-to-peer event chains Checkout Payment Inventory Shipment Fetch the goods before the payment Goods fetched Order placed Payment received Goods shipped @berndruecker

30. What we wanted Photo by Lijian Zhang, available under Creative Commons SA 2.0 License and P..19 / CC BY-SA 4.0 @berndruecker

31. Order Extract the end-to-end responsibility Checkout Payment Inventory ShipmentPayment received Order placed Retrieve payment @berndruecker

32. Order Events & Commands Checkout Payment Inventory ShipmentPayment received Order placed Retrieve payment @berndruecker Event Command Fact, happened in the past, immutable Intend, Want s.th. to happen

33. Order It is not about the protocol! Checkout Payment Inventory Shipment Order placed Retrieve payment It can still be messaging! @berndruecker

34. Order It is about where to decide about the coupling! Checkout Payment Inventory Shipment Order placed Retrieve payment Order decides . to listen to the event . to issue the command @berndruecker

35. Order Checkout Payment Inventory Shipment

36. Demo

37. Zalando does Sales-Order & Order-Fulfillment or every order worldwide via Camunda @berndruecker

38. Workflows live inside service boundaries @berndruecker

39. No BPM(N) monoliths https://blog.bernd-ruecker.com/avoiding-the-bpm-monolith-when-using-bounded-contexts-d86be6308d8 @berndruecker

40. Order Checkout Payment Inventory Shipment Credit Card Let‘s briefly look at payments again Customer Credits REST REST

41. BPMN enables long running interactions

42. BPMN enables long running interactions Do it reliably! Stateful retry Restore consistency

45. BPMN enables the Saga pattern

46. BPMN enables the Saga pattern

47. The payment workflow

48. Can your company leverage your hipster architecture? Shutterstock You need to change business processes and customer experience!

49. Example @berndruecker

50. Example @berndruecker sync

51. Example @berndruecker

52. It is hard to implement Payment Seat ReservationBooking Ticket Generation REST

53. It is hard to implement Payment Seat ReservationBooking Ticket Generation REST

54. Typical pattern Payment Seat ReservationBooking Ticket Generation REST Simulate synchronicty by waiting (callback or polling)

55. @berndruecker happy case failure case Redesign your business process accordingly! Or some interface to poll for status Sync in happy case Async response

56. @berndruecker Redesign your business process accordingly!

57. Summary • Business agility is essential to survive, this is the case for microservices • The challenges move to the collaboration of the services • Balance orchestration and choreography • Workflow engines enable long running services, Saga and help taiming distributed systems

58. Thank you! @berndruecker

59. Get started today! https://github.com/berndruecker/flowing-retail More info about Camunda and enterprise edition trial: http://camunda.com/

60. 85 About Camunda Camunda innovates process automation with a developer-friendly approach that is standards-based, highly scalable and collaborative for business & IT 85 Founded 2008 Employees 200+ Worldwide offices: America, Asia & Europe 5 Countries with people using Camunda 190+ Community Members 100,000+ Enterprise Customers 300+

61. 8686 Camunda is helping NASA go to Mars! 2020

62. 87 Camunda Customers 87 InsuranceFinancial Services Telco Technology ‘Startups’Media

63. Q&A

64. Thank you

Webinar: Monitoring & Orchestrating Your Microservices Landscape using Workflow Automation

camunda services GmbH

Webinar: Monitoring & Orchestrating Your Microservices Landscape using Workflow Automation