The document discusses how Telia scaled its Neo4j graph database to support millions of homes using Kubernetes. It describes the zone API architecture built on Kubernetes, including microservices for the zone API, TheZone agent, API management, and databases like Neo4j, Redis, and Cloud SQL. It also discusses how Kubernetes features like namespaces, auto-scaling, node selectors, and stateful sets were used to scale the Neo4j graph database using causal clustering to support millions of users and billions of requests per day.