Feature: sd_notify API support for systemd #7507
Description
Proposed change
Detect on start-up if the environment variable NOTIFY_SOCKET is set and, if so, automatically trigger writing some status information to the Unix socket which is specified in that env var.
In particular, READY=1\n when start-up is complete, as the most critical piece of information. Various status information such as "JS enabled" and auto-detected limits might make sense too.
Use case
Improved reliability of start-up management, both from systemd and from anything else trying to start a NATS server and wait for it to be ready before continuing.
Contribution
Sure.