Fly.io runs applications close to users worldwide. Deploy from Dockerfile or buildpacks. Automatic TLS and global load balancing. Multi-region databases with automatic replication.
Deployment Model
Applications run as Firecracker VMs. Scale horizontally across regions. Configure resource allocation per machine. Health checks manage traffic routing.
- Deploy from Dockerfile with flyctl
- Configure regions for your user base
- Scale horizontally with machine counts
- Use volumes for persistent storage
- Configure custom domains with automatic TLS
Multi-Region Data
Fly Postgres replicates across regions. Read replicas reduce latency. Write forwarding maintains consistency. Choose regions matching your users.