Mauricio Salatino Diagrid’s Webinar June 25th, 2024 Dapr and Spring Boot Solving the Challenges of Distributed Systems @salaboy

diagrid.io • Software Engineer and CNCF Ambassador. • Author of “Platform Engineering on Kubernetes” (Manning). • GitHub.com/salaboy/platforms-on-k8s • @DaprDev @KnativeProject @KeptnProject @Crossplane_io Mauricio Salatino salaboy.com @salaboy

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Challenges That you will phase Distributed Systems are complex Developer Productivity Su ff ers writing YAML Raise teams expertise to a whole new level @salaboy https://www.diagrid.io/blog/dapr-for-spring-boot

Let’s Start with a Demo Based on https://github.com/dockersamples/example-voting-app @salaboy

Demo @salaboy https://diagrid.ws/vote-webinar

Where is the application deployed? What is a Cloud-Native Runtime? @salaboy @vitalethomas

Where is the application deployed? Is it Kubernetes? @salaboy @vitalethomas ?

Where is the application deployed? Or Cloud Services? @salaboy @vitalethomas ? ?

Most likely you are using containers @salaboy

Containers save time @salaboy

Shoutout to Testcontainers @salaboy

If you look deeper @salaboy

In a cloud native runtime @salaboy @vitalethomas

In a cloud native runtime @salaboy

To make it more complicated… @salaboy

Dapr, can we delegate more responsibility to our cloud native runtime? @salaboy

Dapr - Distributed Application Runtime @salaboy

Dapr - Building Blocks @salaboy

How does it works? @salaboy @vitalethomas

How does it works? @salaboy

How does it works? @salaboy

How does it works? @salaboy @vitalethomas

But if you can do that.. you can also do this @salaboy

But if you can do that.. you can also do this @salaboy

How does it works? @salaboy

How does it works? @salaboy @vitalethomas

How does it works? @salaboy

What about local development? I don’t want to deploy to Kubernetes… @salaboy

Without Kubernetes (with Testcontainers) @salaboy

Let’s do some live coding… @salaboy

This is good … But can we make it more Bootiful? @salaboy

How do we do this in Spring? Spring Data -> https://github.com/spring-projects/spring-data-keyvalue @salaboy

How do we do this in Spring? Spring Data -> https://github.com/spring-projects/spring-data-keyvalue @salaboy

How do we do this in Spring? Spring Kafka -> https://github.com/spring-projects/spring-kafka @salaboy

How do we do this in Spring? Spring Pulsar -> https://github.com/spring-projects/spring-pulsar @salaboy

How do we do this in Spring? Spring AMQP (RabbitMQ) @salaboy

To provide a better integration we did the same for Dapr @salaboy

But there is more @salaboy

Outbox Pattern https://docs.dapr.io/developing-applications/building-blocks/state-management/howto-outbox/ * Produce an event every time we store some data * Do it transactionally * If for some reason storing data fails, 
 the event shouldn’t be produced @salaboy

Durable Exections / Workflows https://docs.dapr.io/developing-applications/building-blocks/work fl ow/ * Sometimes we need more than just calling X services in a sequence * We want to make sure that: * If things fail we have a backup plan like: custom retries, circuit breakers and domain-speci fi c logic hooks * Support for long running and stateful interactions, for example waiting for a human input that might be on holidays * That we have compensation logic to undo operations @salaboy

Let’s raffle some books! @salaboy

Deployment @salaboy

What about Deployments? The platform team takes care of wiring up the available infrastructure @salaboy

Diagrid’s Conductor https://diagrid.ws/get-conductor

Thanks @salaboy @salaboy https://www.diagrid.io/blog/dapr-for-spring-boot