SouJava - Dapr for Java Developers

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Transcript

1. DAPR FOR JAVA DEVELOPER! + https://www.diagrid.io/blog/dapr-for-java-developers
2. @salaboy Software Engineer at Diagrid 45% Discount Code: mtsoujava45
3. @mcruzdev1 Software Engineer at MercadoLibre • Contributing with quarkiverse/quarkus-openapi-ge nerator Quarkus extension • Contributing with quarkiverse/quarkus-dapr Quarkus extension • Blog in matheuscruz.dev
4. Agenda - Introduction - Development challenges - Kubernetes & Containers - What are our applications doing 80% of the time? - What is Dapr? Why should I care? - Demo
5. The challenge to focus on what matters The developer has always been concerned about some things in his day-to-day life: 1. Environment runtime 2. Application configuration 3. Infrastructure 4. Libraries and dependencies 5. And more, and more non functional requirements All this to solve business problems!
6. Before ... - Security - Transaction management - Connection pools - Service discovery - Messaging - Load balancing - Standardization evicting vendor lock-in - Etc …
7. But … - Shared CPU, memory and File System - My application depends on the application server's libraries - ClassLoader issues - Difficulty in having a microservices architecture - Bad developer experience, some configurations
8. No need for an application server - Conventions over configuration - Simplicity - One JVM per application - A more favorable environment for microservices - A better development and runtime environment
9. But … I still need to worry about libraries/dependencies and some core services that were once provided by application servers.
10. After
11. After (Java)
12. But what are our applications doing 80% of the time? - How many of your applications are reading or storing data? - How many of your applications are consuming and emitting events? - How many of your applications are calling other services?
13. The challenge to focus on what matters The developer has always been concerned about some things in his day-to-day life: 1. Environment runtime 2. Application configuration 3. Infrastructure 4. Libraries and dependencies All this to solve business problems!
14. The challenge now is abstract infra and libs
15. https://dapr.io
16. What is Dapr? And why you should care? - Stands for: Distributed Application Runtime - Mostly, but not only, a Kubernetes Extension - A CNCF Project, this is important because it means that is supported by multiple companies and community users - Dapr gives developers application-level APIs to interact with other services and infrastructure
17. With Dapr
18. Dapr installation Demo - Let’s install Dapr in a Kubernetes Cluster - Let’s deploy a simple application to show Dapr in action
19. Diagrid’s Conductor
20. Ok, but.. This is way too much for developers! - To get this working we need: - A Kubernetes Cluster - Install Dapr - Configure infrastructure to be accessible using Components - Write a lot of YAML
21. Dapr for Spring Boot and Quarkus - Luckily we have integrations with Spring Boot and Quarkus - Java Developers can use the Dapr APIs without the need of a Kubernetes Cluster or even installing Dapr
22. Spring Boot Dependencies and Configs +
23. Quarkus Dependencies and Configs
24. Takeaways - Dapr decouples the application code from infrastructure - While promoting best practices and stable APIs - You can build complex development experiences using tools like Testcontainers
25. Questions?