Highly available and highly scalable Cloudflare tunnels

Cloudflare Tunnel is a product used by customers to connect their services and private networks to Cloudflare without poking holes in their firewall. The tunnel connections are managed by cloudflared, which runs in the user's environment and ensures that all traffic goes through Cloudflare. Starting from May 12th, users can now run the same tunnel from multiple instances of cloudflared simultaneously. This enables graceful restarts, elastic auto-scaling, easier Kubernetes integration, and more reliable tunnels. The new feature allows teams to dynamically start more instances of cloudflared without changing their DNS or Load Balancer configuration. It also supports zero-downtime config changes and seamless scaling up or down of services independently.