Orchestrate your business logic reliably with Dapr Workflows - TEQnation

Slides for my Dapr Workflow talk at the TEQnation conference in Utrecht, NL.

GitHub repo with the demos: https://github.com/diagrid-labs/dapr-workflow-demos

Transcript

1. Orchestrate your business logic reliably with Dapr Workflows
2. 2 Azure MVP Dapr Community Manager ❤ pixel art Marc Duiker Sr Dev Advocate marc@diagrid.io
3. 3 3 Checkout Dapr Chaining Workflows End Start Fan-out/Fan-in Eternal workflow Timers Q&A
4. What is Dapr? 4
5. 5 E-commerce system State Management Email Payment Front-end Shipping Checkout Inventory Cart Internet Queue I just want to trace my calls end-to-end. How do I encrypt calls with ongoing cert rotation? How do applications discover and call each other? How do I handle failed calls and perform retries? How do I secure access to my data layer? How do I handle state conflicts from multiple apps? How do I measure latency on my database? How do I orchestrate business logic transactions? How do I send messages to many applications? Developer challenges
6. 6 Distributed application runtime
7. Dapr is a portable, event- driven, runtime for building distributed applications across cloud and edge. 7
8. 8 virtual or physical machines
9. Speeds up microservice development by providing a common set of building block APIs. 9
10. 10 Service invocation State Management Publish & subscribe Bindings (input & output) Actors Secret Stores Configuration Observability Workflows Distributed Lock Building block APIs
11. 11 HTTP/gRPC Dapr API Dapr sidecar Application App
12. 12 POST http:// localhost:3500/v1.0/invoke/cart/method/order GET http:// localhost:3500/v1.0/state/inventory/item67 POST http:// localhost:3500/v1.0/publish/order GET http:// localhost:3500/v1.0/secrets/vault/password42 POST http:// localhost:3500/v1.0-alpha1/workflows/dapr/businessprocess/1234/start HTTP/gRPC Dapr API App
13. 13 Python Java Script Java Go Client SDKs C#
14. 19 Bindings Configuration State Management Publish & subscribe Observability Actors Secret Stores Workflows Distributed Lock Components AWS DynamoDB Azure CosmosDB GCP Firebase Redis Cassandra AWS SQS Azure Service Bus GCP Pub/Sub Redis RabbitMQ AWS Secrets mngr Azure KeyVault GCP Secret mngr HashiCorp Vault Kubernetes Secrets AWS DynamoDB Azure CosmosDB Redis MongoDB Postgres AWS S3 Azure Storage GCP Storage Twilio Kafka Jeager Zipkin Prometheus App Insights Datadog Redis Redis Azure App Configuration Dapr Workflow Building Block APIs
15. Workflows 38
16. A sequence of tasks or activities that are performed to accomplish a specific goal. 39
17. 40 Business Process Automation Durable Logic Apps
18. Dapr workflow works with all the other building block APIs 🎉 41
19. Workflow patterns 42 Workflows
20. 43 Workflows Activity 1 Activity 3 Activity 2 End Start Chaining
21. 44 Workflows Activity 1 Activity 3 Activity 2 End Start Fan-out fan-in
22. 45 Workflows Eternal Activity Start Continue
23. 46 Workflows Timer Activity Timer End Start
24. 47 The workflow engine
25. 48 Your Workflow App Workflow engine Append-only state store
26. 49 Your Workflow App Contains definition of a sequence of activities Schedules and manages activity executions (incl resiliency) Contains workflow state, input and outputs of activities
27. End Activity 3 Activity 2 Activity 1 50 Start Replay & checkpointing
28. End End Activity 3 Activity 3 Activity 2 Activity 2 Activity 1 Activity 1 51 Start Workflow Start Store start & input
29. End End Activity 3 Activity 3 Activity 2 Activity 2 Activity 1 52 Start Start Store input & output Schedule & execute Activity 1
30. End End Activity 3 Activity 3 Activity 2 Activity 2 Activity 1 53 Replay Workflow Start Activity 1 has been executed already
31. End End Activity 3 Activity 3 Activity 2 Activity 1 54 Start Start Store input & output Schedule & execute Activity 2 Activity 1
32. End End Activity 3 Activity 3 Activity 2 Activity 1 55 Replay Workflow Start Activity 1 & 2 have been executed already
33. End End Activity 3 Activity 2 Activity 1 56 Schedule & execute Activity 3 Start Start Store input & output Activity 2 Activity 1
34. End End Activity 3 Activity 2 Activity 1 57 Replay Workflow Start Activity 1,2 & 3 have been executed already
35. End Activity 3 Activity 2 Activity 1 58 Workflow is completed Start Store completion & output
36. Workflow demos 59 https://github.com/diagrid-labs/dapr-workflow-demos
37. Join the Dapr Discord! bit.ly/dapr-discord