Cloud-Native Webinar-Reihe Angewandte Patterns & Praktiken – mit Dapr (Distributed Application Runtime) Christian Weyer

§ Cloud-native & serverless architectures § Pragmatic end-to-end solutions § Mobile & web-based application architectures § Microsoft Regional Director § Microsoft MVP for Developer Technologies & Azure ASPInsider, AzureInsider § Google GDE for Web Technologies [email protected] @christianweyer https://www.thinktecture.com Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Christian Weyer Co-Founder & CTO @ Thinktecture AG 2

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 3 Availability Scalability Resilience Configurability Observability Cloud-Native Attributes Attributes & Challenges

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Infrastructure, FTW! Statelessness Interception Instrumentation Loose (runtime) coupling (many more) Cloud-Native Patterns 4 Patterns & Solutions

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 5 Sample Application

Distributed Application Runtime 6 https://dapr.io/

§ Prevents developers reinventing the wheel, esp. complex wheels § Making developers lives easier with consistent approach § Productivity tool, when having different § Generations of software types (greenfield and brownfield) § Languages & frameworks § Team formations ➡ Dapr as a common “lingua franca” § (Transparent distributed tracing end-to-end) Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Dapr Value Proposition 7

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 8

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Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 12 Specifications YAML Configuration YAML CLI Dashboard

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Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr daprd 14

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Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 16 Abstracting access to “things”

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 17 https://github.com/dapr/components-contrib

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Cloud-Native: Angewandte Patterns & Praktiken Interception Mit Dapr 19

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Cloud-Native: Angewandte Patterns & Praktiken Decoupling Mit Dapr 21

§ CloudEvents 1.0 standard § Topic scoping § Which topics an application is allowed to publish to § Which topics an application is allowed to subscribe to § Message subscription § Applications can subscribe to published topics § Subscribe to topics by either declarative or programmatic method § Dapr POSTs to HTTP endpoint § Message delivery § Successfully delivered when subscriber responds with non- error response § Guarantees “at-least-once” semantics § Message time-to-live (TTL) § Message in queue for longer than the configured TTL is said to be dead Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Pub-Sub Main Features 22

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§ Resiliency for service invocation & publish-subscribe § Scoping to applications Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Policies & Targets 24

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Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Input / Output Bindings & Input Triggers 26

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Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr Standardized instrumentation 28

On-prem & Cloud 29

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 30 Sample Application

Recap Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr 31

Cloud-Native: Angewandte Patterns & Praktiken Mit Dapr An open-source runtime for distributed Cloud-Native applications Dapr… 32 Encapsulates proven patterns & their implementations as building blocks Enforces practices & policies through configuration May be overkill if you only have one language or few services Can be be used together with a service mesh Allows to pick & chose to gradually Dapr-ize applications Can be run anywhere: locally, on-prem & in the Cloud

thinktecture.com/ cloud-30-11-2022 thinktecture.com/ cloud-25-01-2023 Cloud-Native Webinar-Reihe – Termine thinktecture.com/ cloud-16-11-2022 thinktecture.com/ cloud-14-12-2022 thinktecture.com/ cloud-11-01-2023 Alle Webinare unserer Cloud-Native-Reihe finden Sie hier: thinktecture.com/cloud-native-webinare/ 03. November 2022 – 25. Januar 2023 Mit Dapr Cloud-Native: Angewandte Patterns & Praktiken 33

https://www.thinktecture.com/ueber-uns/karriere/ Dankeschön! Christian Weyer https://thinktecture.com/christian-weyer Demos: https://github.com/thinktecture/ dapr-basics-demos https://github.com/thinktecture-labs/ cloud-native-sample 34

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