Building Lean Spring Boot Applications for the Cloud by Patrick Baumgartner

Build high-performance Lean Spring Boot apps for the cloud by optimizing image size, startup time, and dependencies.

Key takeaways

Optimize for cloud deployment: When building Lean Spring Boot applications for the cloud, consider reducing image size and focusing on startup time.
Use build packs: Use build packs to simplify the Docker image creation process, as they can prevent unnecessary dependencies and optimize the build process.
Profile and optimize: Use profilers and other tools to identify and optimize slow parts of the application, such as database queries and Hibernate initialization.
Use the right JVM distribution: Use the latest JVM distribution, such as GraalVM, to reduce startup time and improve performance.
Consider lazy initialization: Use lazy initialization for certain dependencies to reduce startup time and improve performance.
Remove unnecessary dependencies: Remove unnecessary dependencies to reduce the size of the Docker image and improve performance.
Use the CPU count wisely: Use the CPU count wisely, as too many CPUs can actually decrease performance.
Use native images: Use native images to create a more efficient and smaller container image.
Monitor and analyze performance: Monitor and analyze performance using tools such as the Spring Boot startup report to identify areas for improvement.
Use the right Docker command: Use the right Docker command to configure the Docker image and improve performance.
Keep dependencies up to date: Keep dependencies up to date to avoid potential issues and improve performance.

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