🍃 Spring Boot 3.3 Microservices & Class Data Sharing (CDS)
Production guide for Spring Boot 3.3, Spring Security 6 stateless JWT authentication, Class Data Sharing (CDS) startup acceleration, and Testcontainers integration.
1. Class Data Sharing (CDS) Startup Acceleration
Spring Boot 3.3 supports Class Data Sharing (CDS), reducing container startup times from seconds to sub-200ms by pre-processing class metadata into a shared archive:
# Step 1: Perform CDS Training Run
java -XX:ArchiveClassesAtExit=app.jsa -Dspring.context.exit=onRefresh -jar app.jar
# Step 2: Launch Production Container with Instant CDS Execution
java -XX:SharedArchiveFile=app.jsa -jar app.jar