A cloud provider gives developers access to virtualized server infrastructure. When a developer rents this infrastructure via an API call, a virtual server is instantiated on physical machines. That virtual server needs to be made addressable through the allocation of an IP address to make it reachable from the open Internet. When the virtual server starts to receive too much traffic, that traffic needs to be load balanced with another virtual server.

The backend networking code that runs a cloud provider needs to be fast, secure, and memory-efficient. Languages that fit that description include C++, Rust, and Go. Digital Ocean’s low-level networking code is mostly written in Go.

Sneha Inguva is an engineer with Digital Ocean who has written and spoken about writing networking applications using Go. She joins the show to talk about her work at Digital Ocean, including the implementation of a DHCP server, a network server that assigns IP addresses and other parameters to devices that sit on that network.

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