fly m restart --select --app workers-api-production --signal SIGTERM
This is the only relevant log:
2024-04-26T22:34:31Z app[683d3ddcd3de48] iad [info] INFO Sending signal SIGINT to main child process w/ PID 323
The other ones for the next 5 minutes (because of my kill_timeout setting I think) are just from my app. After 5 minutes the SIGTERM signal is sent, to finally kill the machine.