I worked quite hard to solve this problem, and I’m happy with its (eventual) simplicity. When you have (for example) two Kubernetes containers in a pod (or two processes that can share a named pipe) and you need to run a process on one of them from the other one, I have just the tool for you. It’s basically ssh without all the pesky networking, using named pipes instead of TCP streams.

https://unix.stackexchange.com/a/735642/157130

#linux #kubernetes #docker #fifo #bash