Exposing HTTP ports to the open internet is a security hazard. Traditionally, access to internal databases or ERP APIs required setting up complex VPNs or whitelisting static IP pools, both of which are administrative burdens and prone to human configuration error.
We replaced this setup with Cloudflare Tunnels. By running a cloudflared daemon inside our private AWS VPC, the service establishes outbound-only connections to Cloudflare's edge. No inbound ports are open to the internet. Traffic is routed securely through Cloudflare Access with token verification.
This eliminated the threat of open port scans and simplified access control. Developers get secure access to internal systems via corporate identity provider logins, and we have a single, clean point of ingress.
From a systems perspective, implementing this solution required auditing our telemetry structures. We mapped key transactions across our distributed database queries and evaluated the locking overheads under heavy load. By setting up strict validation rules in Prisma, we isolated runtime query errors before they could trickle up to the client view.
Ultimately, building durable systems means choosing boring abstractions and documenting architectural decisions (ADRs) meticulously. When infrastructure behaves predictably, your team can deploy with high confidence. We enforce these performance and security budgets in our continuous integration (CI) workflows, ensuring that every merge maintains the same standard.