It’s important to me that if I link between two containers, the data exchanged is secure within the cloud hosting facility. That means that containers on different nodes use encryption to communicate – whether at the application layer (with HTTPS used between microservices, e.g.) or networking layer or somewhere in between.
Manually, I usually use OpenVPN, but I saw a note somewhere that Docker Cloud uses encryption for communication between linked containers automatically.
Is this true? That’d be pretty convenient.