Building Cloudflare on Cloudflare

What this post added

This post details Cloudflare's strategic shift towards building its own internal services, including core proxy logic like the 'Front Line' (FL) service, using the Cloudflare Workers developer platform. It highlights the motivation for this migration, which includes overcoming the latency and complexity of HTTP-based inter-service communication in a traditional proxy chain, improving developer experience, and enabling faster, more isolated deployments. The post contrasts the initial integration of internal workers (running before customer scripts) with the more ambitious goal of replacing monolithic services entirely. It discusses the technical challenges encountered and addressed, such as accessing internal services, emitting logs, state caching, and direct origin requests, and how the Workers platform's capabilities are being extended to meet these needs. The post emphasizes the benefits of using the same tooling and platform for internal development as for external customers.