Effective AWS Step Functions

Transcript

1. Effective Step Functions
   Tomoharu Ito
   https://hugtech.io
   

   View Slide

2. Agenda
   1. Lambda invoking is often bad.
   2. The new process with WorkflowStudio
   3. Point of view for variable injection in CI/CD
   4. Design Patterns
   5. Use case (Shifter, SAML integration workflow)
   

   View Slide

3. 1. Lambda invoking is often bad.
   

   View Slide

4. 1. [Problem] sometimes hard to see your logic.
   packed in..
   - Transcribe:StartBatchJob
   - WaitJobComplete
   - SNS:Publish
   - SES:SendEmail
   - DynamoDB: UpdateItem
   :
   return
   FALLBACK?
   

   View Slide

5. 1. [Solution] Extract Lambda by SDK integration
   

   View Slide

6. Eliminate Lambda (as much as possible).
   Express (and don’t hide) your logic on your
   StateMachine.
   

   View Slide

7. 2. The new process and benefit for WorkflowStudio
   Prototype first.
   Business logic first.
   

   View Slide

8. 2. Circulation your workflow Console and Repository
   

   View Slide

9. 2. Alteration ASL easy on the Workflow Studio (1)
   Handling all the exceptions.
   

   View Slide

10. Output modification.
    2. Alteration ASL easy on the Workflow Studio (2)
    

    View Slide

11. Don’t needed write ASL direct.
    Designing isolated In/Out.
    Mutually exclusive errors and fallbacks.
    

    View Slide

12. 3. Point of view for variable injection in CI/CD
    

    View Slide

13. 3. Pulling variables in the workflow
    SSM:GetParameters
    on top of Workflow.
    

    View Slide

14. 3. Inject variables from AWS-SAM
    

    View Slide

15. 3. [Recommended Way] Inject variables from AWS-SAM
    Reset injected values to
    inside Workflow as variables
    on top.
    

    View Slide

16. Refer them as
    workflow parameters.
    3. [Recommended Way] Inject variables from AWS-SAM
    

    View Slide

17. Manage credential on the single point.
    Dynamic or static more suitable in your
    use-case .
    

    View Slide

18. 4. Design Patterns
    Exception
    Handler
    Catching all exceptions
    

    View Slide

19. 4. Design Patterns
    Delaying operation in
    StateMachine.
    Delay
    

    View Slide

20. 4. Design Patterns
    Run different operation
    depending on
    StateMachine input.
    Action &
    Choice
    

    View Slide

21. 4. Design Patterns
    Avoid StateMachine
    Nesting with
    EventBridge.
    Flatten
    

    View Slide

22. 4. Design Patterns
    Real time notification
    from StateMachine.
    Async
    Notification
    

    View Slide

23. 5. Use case (Shifter, SAML integration workflow)
    

    View Slide

24. Switch operation per phase in a workflow
    

    View Slide

25. View Slide

26. View Slide

27. More traceability comes from SDK integration.
    

    View Slide

28. Monitoring performance by default with X-Ray.
    

    View Slide

29. Thanks for listening everyone.
    See you at the next meetup.
    

    View Slide