Recent practice in distributed systems has shifted from building and maintaining monolithic applications to breaking monoliths into microservices, but the standardization and best practices for microservice architecture and interaction between microservices remain largely undefined. After breaking apart a monolithic application or building up microservices from scratch, many engineers are left wondering “now what”? In Production-Ready Microservices, author Susan Fowler looks at lessons learned from driving high production-readiness standards across over a thousand microservices. She discusses standards that apply to every microservice, and shares strategies for bringing microservices to a production-ready state. A production-ready microservice, she argues, is one that is stable, reliable, fault-tolerant, scalable, performant, monitored, prepared for any catastrophe, and documented and understood.