Learn how to streamline testing of complex Spring Boot applications across different environments without the overhead of full Kubernetes clusters in this 50-minute conference talk from Spring I/O. Discover practical solutions for eliminating environment drift and improving development efficiency through three key technologies: Testcontainers for local development, Microcks for mocking and testing, and Dapr for cross-environment portability. Explore strategies for working with applications that have heavy infrastructure dependencies while targeting Kubernetes or cloud provider services. Gain insights into building confidence in your cloud-native applications through effective testing approaches that don't require spinning up complete cluster environments, ultimately improving your development workflow and deployment reliability.