[KieLive#35] Streaming decisions with DMN and Kafka

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Guilherme H. Caponetto Streaming decisions with DMN and Kafka Software Engineer Business Automation @ Red Hat bit.ly/caponetto

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What is this presentation about? 2

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Content Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox 3

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Content Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka 4

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Content Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka How to connect them both with DMN 5 learn-dmn-in-15-minutes.com

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Content Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka brief introduction How to connect them both with DMN 6 learn-dmn-in-15-minutes.com

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Content Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka How to connect them both with DMN cool demo 7 brief introduction learn-dmn-in-15-minutes.com

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Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox 8

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Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox during this presentation 9

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Developer Sandbox for Red Hat OpenShift “The sandbox provides you with a private OpenShift environment in a shared, multi-tenant OpenShift cluster that is pre-conﬁgured with a set of developer tools. You can easily create containers from your source code or Dockerﬁle, build new applications using the samples and stacks provided, add services such as databases from our templates catalog, deploy Helm charts, and much more.” red.ht/dev-sandbox during this presentation 10

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Developer Sandbox for Red Hat OpenShift red.ht/dev-sandbox during this presentation 11

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Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka 12

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Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka during this presentation 13

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Red Hat OpenShift Streams for Apache Kafka red.ht/tryKafka during this presentation “As a fully-managed and hosted Kafka service, Red Hat OpenShift Streams for Apache Kafka enables developers to focus on building better applications more quickly, without having to worry about the underlying requirements of data collection and processing.” 14 “Based on the open source Apache Kafka project, Red Hat OpenShift Streams for Apache Kafka enables development teams to more easily incorporate streaming data into their applications.” (reference) development preview

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Demo

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Goals 1. Show around the Sandbox and Kafka 2. Integrate them both with DMN 3. Do not require anything installed 16

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1. Show around the Sandbox and Kafka 2. Integrate them both with DMN 3. Do not require anything installed Goals reason for you to try it out today! 17

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A summary of our demo Sandbox Kafka 18 caponetto/streaming-dmn-kafka

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A summary of our demo Producer Consumer Sandbox Kafka 19 caponetto/streaming-dmn-kafka

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A summary of our demo Producer Consumer deploy Kafka Sandbox Producer Consumer 20 caponetto/streaming-dmn-kafka loosely-coupled services

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A summary of our demo Producer Consumer deploy events with decision inputs Kafka Sandbox Producer Consumer 21 caponetto/streaming-dmn-kafka loosely-coupled services

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A summary of our demo Producer Consumer deploy Kafka event stream Sandbox Producer Consumer 22 caponetto/streaming-dmn-kafka events with decision inputs loosely-coupled services

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A summary of our demo Producer Consumer deploy Kafka event stream decision evaluation Sandbox Producer Consumer 23 caponetto/streaming-dmn-kafka events with decision inputs loosely-coupled services

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A summary of our demo a closer look 24

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A summary of our demo a closer look Let’s inspect our DMN 25 caponetto/streaming-dmn-kafka Traffic Violation.dmn

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A summary of our demo a closer look Producer Send cloud events every x seconds to a particular topic. The payload contains decision inputs. Some of the inputs are randomly generated. 1 … n 26

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A summary of our demo a closer look Producer Send cloud events every x seconds to a particular topic. The payload contains decision inputs. Some of the inputs are randomly generated. Payload example taken from this repository. 1 … n 27 Driver and Violation data

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A summary of our demo a closer look Consumer Receive cloud events from the subscribed topic. Include the Traﬃc Violation decision model. Using Kogito, evaluate the decision. 1 … n 28

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A summary of our demo a closer look Consumer Receive cloud events from the subscribed topic. Include the Traﬃc Violation decision model. Using Kogito, evaluate the decision. Payload example taken from this repository. 1 … n 29 Fine data and whether or not the driver should be suspended

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30 BOOTSTRAP_SERVER CLIENT_ID CLIENT_SECRET OAUTH_TOKEN_ENDPOINT_URI TOPIC A summary of our demo a closer look environment variables needed to connect with our Kafka instance

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It’s hands-on time!

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32 Final Remarks

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Additional references 33 ● Event-driven decisions with Kogito ● Introducing Red Hat OpenShift Streams for Apache Kafka ● Sending and Receiving Cloud Events with Kafka ● Learn Quarkus faster with quick starts in the Developer Sandbox for Red Hat OpenShift