Ask HN: What do you use for your cloud VPN?

I have a couple of servers running in digital ocean with some docker web applications on them. I want to block access to these web services from the public internet but allow them from the VPC network. The only out of the box solutions I see for digitalocean are proprietary apps like OpenVPN. WireGuard is a good alternative but requires a surprisingly high amount of configuration, and all the third party UIs are barely maintained.

I can’t believe this isn’t a solved problem so very curious what people are using to access VPCs. Preferably open source.