Why Open Source Won the Cloud Infrastructure War

Linux powers 90%+ of cloud servers. Kubernetes orchestrates most container workloads. PostgreSQL is the fastest-growing database. Redis dominates caching. Even Microsoft (once open source enemy) embraces open source (GitHub acquisition, VS Code, Linux on Azure). Open source won because: contributions from many companies beat any single vendor, transparency builds trust, no vendor lock-in, and communities provide free support. The lesson: infrastructure moves toward open source over time. Proprietary infrastructure works only while the market is nascent.