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Windows Azure Workflows Manager - Running Durable Workflows in the Cloud and on Prem

Windows Azure Workflows Manager services was shipped together with Service Bus for Windows Server as part of the major SharePoint 2013 release. Microsoft workflow manager is built to host and manage workflows in a multi-tenant environment at a high scale, such as Windows Azure.In this session, Sam will give an architectural overview of Workflow Manager and position it in various scenarios. It will also be compared WCF Workflow Services. The concepts of custom activities, deployment, management and workflow hierarchy will be explained. A cloud-based workflow solution will be demonstrated, showing integration between Windows Azure Service Bus, Workflow Manager, Windows Azure BizTalk Services and on premises systems. After the session, attendees should be able to understand the capabilities of Workflow Manager and should have seen how to build distributed workflows in a scalable cloud environment.

BizTalk Summit 2014, London March 03-04

Brought to you by BizTalk360

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Windows Azure Workflows Manager - Running Durable Workflows in the Cloud and on Prem

  1. 1. brought to you by Windows Azure Workflows, a prediction SAM VANHOUTTE
  2. 2. Nice to meet you SamVANHOUTTE CTO 6 year - BizTalkV-TSP 1st year - Integration MVP sam.vanhoutte@codit.eu +32 474 849 993 @SamVanhoutte be.linkedin.com/in/samvanhoutte/ > 60 Active integration customers International Focus - HQ in BEFocused on integration solutions 2000 Belgium 2004 France 2013 Portugal 60 employees > 50 consultants BizTalk certifiede-news + SoMe 2012 & 2013 Partner of the Year Award Finalist Application Integration
  3. 3. Agenda • Microsoft & Workflow – a long history • Workflow designer, activities • Workflow Manager • Architecture • Multi-tenancy & isolation • Pub / sub • State machines • Conclusions & future
  4. 4. Microsoft & Workflow A bit of history
  5. 5. Workflow history Oslo Repository, M, Quadrant AppFabric WCFWorkflow Services Azure Workflow Service Bus & SharePoint 2004 > 2007 - 2010 2010 > 2013 > BizTalk Server XLANG/s Modeling
  6. 6. The ART of Workflow* * Copyright : Dave Cliffe : Program ManagerWorkflow ➔ Declarative authoring of programs that coordinate work, using: ➔ Activities ➔ Runtime ➔ Tooling
  7. 7. Workflow improvements in .NET 4.5 Authoring Improvements Be more efficient when authoring your workflows Versioning Basic building blocks to enable building a versioning story Runtime Enhancements Improve runtime performance and extensibility
  8. 8. Scenario AppFabricWorkflows & BizTalk 8 AppFabric WF BizTalk orch. Sentinet Get Create
  9. 9. Workflow Manager An overview
  10. 10. Workflow Manager 10 Design goals ➔ Multi-tenancy ➔ High-density ➔ Isolation & security ➔ Biggest customer ? Z-Hotel
  11. 11. What is Workflow Manager? ➔ Scale & Reliability ➔ Multi-tenancy ➔ Cloud-based Messaging ➔ WF4 Prog Model HTTP & HTTPS WF Backend (.EXE) WF Gateway (IIS) .NET Client Service Bus WF Resources Activity Prog Model Core Runtime Activity Prog Model
  12. 12. Architecture
  13. 13. Deployment diagram 13
  14. 14. Workflow Manager Infrastructure IIS One App Pool: WorkflowMgmtPool One site: Workflow Management Site Windows Services WorkflowService Backend ServiceBus Backend ServiceBus Gateway FabricHostSvc SQL Workflow Databases • WFManagementDB • WFInstanceManagementDB • WFResourceManagementDB Service Bus Databases • SBManagementDB • SBGatewayDatabase • SBMessageContainerxx
  15. 15. Installing WF Manager ➔ Install ➔ UsingWEB Platform Installer (or download center) ➔ Supported on Windows Server 2012, Windows 8, AzureVMs ➔ Configure ➔ Using configuration wizard or PowerShell ➔ Create / Join a Farm (high availability / scale-out) ➔ Supported back-ends ➔ SQL Server (Express + higher) & SQL Azure ➔ Service Bus 1.0 forWindows Server (not service!)
  16. 16. Testing & Debugging
  17. 17. Microsoft.Workflow.TestServiceHost 17 ➔ Part ofWorkflow ManagerTools forVisual Studio (2012 only!) ➔ TestService (console app) ➔ Deploy & run workflows in it ➔ AttachVisual Studio to the process ➔ Update exe.config ➔ Some limitations
  18. 18. Multi-tenancy Through scopes & isolation
  19. 19. Scopes ➔ Workflow manager scope ➔ Dedicated service bus topic ➔ Gets created at deployment of first workflow ➔ “A scope is a named and securable container for Activities,Workflows, Instances, configuration and child Scopes.” Root Tenant01 HRM Sales Tenant02 Production TenantXX
  20. 20. Sandboxing 20 Workflow Manager 1.0Trusted Surface ➔ Set of trusted types & activities ➔ Fully declarative authoring ➔ Compositie custom activities possible ➔ Whitelisting custom activities possible ➔ AllowedTypes.xml (WFWebRootbin & Artifacts folder) ➔ Disable sandboxing • Set-WFServiceConfiguration –ServiceUri:https://server:12290 –Name:WorkflowServiceAllowUnsafeTypes -Value:true
  21. 21. Sandboxing .NET Data Types • String • DateTime & TimeSpan • Int32 & Double • Boolean • Guid • ICollection & IList • IDictionary & KeyValuePair • DynamicValue • Exception • Uri WF Manager activities • Dynamic Value • Http Activities • Pub/Sub Activities • Time Activities • Configuration & External variables • Data Type functions System.Activities, except: • InvokeMethod • New • Cast • VisualBasicValue, VisualBasicReference • LambdaValue, LambdaRefernce • TransactionScope • Persist 21 Workflow Manager 1.0Trusted Surface
  22. 22. Using complex data structures ➔ Recursive key-value pairs ➔ Address, using paths ➔ Customer/FirstName > John ➔ Company > Contoso ➔ Regions(2) > LA 22 DynamicValues Name Value Customer Name Value FirstName John LastName Doe Age 42 Company Contoso Regions EU US LA
  23. 23. External communication Pub/Sub & Http activities
  24. 24. Http activities 24 ➔ No ‘HttpReceive’ activities ➔ Use REST api ➔ or Pub/Sub activities ➔ or WorkflowClient ➔ Support for security tokens, REST services …
  25. 25. Pub/Sub activities 25 ➔ Leveraging Service BusTopics & Subscriptions Activities ➔ BuildMatchAllFilter activity > define filter ➔ Subscribe activity > create SB subscription behind the scenes ➔ ReceiveNotification ➔ With Filter > temporary subscription, deleted after 1st message ➔ Using SubscriptionHandle > subscription remains existing ➔ Unsubscribe (implicitly when subscriptionhandle out of scope)
  26. 26. Demo 01 Pub / Sub & Http activities Integration withWABS 26
  27. 27. 27 Fancy Order App Order Process Workflow Manager BizTalk Services Order Web API On prem SQL databaseFTP Server EDIFACT DESADV ON COMPLETE ADAPTER SERVICE
  28. 28. Demo 02 State machines Twilio phone call orchestrated byWF Manager 28
  29. 29. Twilio phone call state machine 29 Twilio API Flight call State machine Flight check Web API Service bus topic Tracking subscriptionPhone logger service Phone front end SignalR SvcBus Message Pump
  30. 30. Level 3 Level 2 Level 1 Welcome message 1. Check in 1. With luggage 2. Without luggage 2. Upgrade flight 1. To business 2. To 1st class Cancel flight 1. Confirm 2. Leave Contest : call <removed> (toll free)
  31. 31. Conclusions  Workflow manager is multi-tenant & cloud-ready platform  Look out for upcoming BPM features by theWABS team  BPMN Support announced
  32. 32. Thank you! Keep in touch. LinkedIn blog .codit.eu codit.eu Newsletter @Sam Vanhoutte Pay us a visit

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  • alexeystrakh

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    Mar. 27, 2020

Windows Azure Workflows Manager services was shipped together with Service Bus for Windows Server as part of the major SharePoint 2013 release. Microsoft workflow manager is built to host and manage workflows in a multi-tenant environment at a high scale, such as Windows Azure.In this session, Sam will give an architectural overview of Workflow Manager and position it in various scenarios. It will also be compared WCF Workflow Services. The concepts of custom activities, deployment, management and workflow hierarchy will be explained. A cloud-based workflow solution will be demonstrated, showing integration between Windows Azure Service Bus, Workflow Manager, Windows Azure BizTalk Services and on premises systems. After the session, attendees should be able to understand the capabilities of Workflow Manager and should have seen how to build distributed workflows in a scalable cloud environment. BizTalk Summit 2014, London March 03-04 Brought to you by BizTalk360

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