[$] Identity management for WireGuard

Since its inclusion in the Linux kernel, the WireGuard VPN tunnel has becomeincreasingly popular. In general, WireGuard is simpler to configure thanother VPNs, but the approach that it takes to authentication can presentsome challenges. Each node in a WireGuard network has a cryptographic keythat serves as the node's identity; nodes that do not know each other's keys cannot directly communicate.Keepingtrack of these keys and distributing them to the other nodesin a mesh network quickly becomes a chore as the network grows.Fortunately, there are now several open-source tools that can automate the management of these keys and make usingWireGuard easier for both administrators and end users.