How We Support Multi-Cloud Apps at Stack Overflow

Learn how Stack Overflow's Platform Engineering team built abstractions to enable seamless multi-cloud application deployment across Azure and Google Cloud Platform. Discover the technical strategies and tools used to minimize complexity for developers when running services in multiple cloud environments. Explore how Kubernetes serves as a common runtime foundation, examine the standardization of infrastructure metadata, and understand the implementation of a Stack-specific flavor of the CNAB (Cloud Native Application Bundle) specification. Gain insights into the Go-based CLI tools developed to simplify deployment processes and see how these solutions create an effective abstraction layer between infrastructure and execution. The presentation covers both philosophical approaches and detailed technical implementations, including lessons learned about what strategies proved successful and which approaches required adjustment during Stack Overflow's transition from on-premises to multi-cloud architecture.