emerwen is a WIP host and service monitoring solution.
emerwen stands for shepherdess in Quenya.
It's architected as one Master server, which configures Workers who notify the Master about the status of their targets.
gRPC is used for the Master<->Worker connection. A custom TCP protocol was planned and experimented with, but scrapped due to me not having done it before and not wanting to deal with the burden of managing all the connections manually etc, etc. tldr: gRPC was easier lmao.
* TLS
* Graceful shutdown for Workers when SIGINT is received
* Send Master(s) a message that you're exiting, and wait for Master(s)
to end the connection
* Once no connections are active, exit with 0
* Master should notify if a Worker becomes unreachable
* Without sending the message described above "graceful shutdown"