docker-compose graceful shutdown of uvicorn --reload

I’m trying to run uvicorn --reload in a docker-compose setup with a mounted directory of my code. When using “ctrl+c” and other ways to end the process it ends up just haning for the graceful shutdown periode and then it gets the SIGKILL because nothings happens. When looking at the strace it seems to be hanging indeed:

wait4(7, 0x7ffcf1409d84, WNOHANG, NULL) = 0
getpid()                                = 1
write(2, "INFO: Stopping reloader process "..., 36) = 36
getsockname(3, {sa_family=AF_INET, sin_port=htons(8000), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0
getpeername(3, 0x7ffcf1409f70, [16])    = -1 ENOTCONN (Transport endpoint is not connected)
close(3)                                = 0
wait4(7, 0x7ffcf140afe4, WNOHANG, NULL) = 0
wait4(7, 0x7ffcf140afe4, WNOHANG, NULL) = 0
getpid()                                = 1
wait4(7,  <unfinished ...>)             = ?
+++ killed by SIGKILL +++

If I disable the reloader it shutdowns down fine. I’ve uploaded a minimal sample here: https://gist.github.com/sbv-trueenergy/a9a6971778a01d1acd3c466719e690b8

Am I doing something wrong?

[euri10]

I think I got a fix on this branch, fancy trying it @gnat ? https://github.com/euri10/uvicorn/tree/docker_signal

this was my inspiration after I read both excellent posts here and here

[euri10]

I found this read interesting https://hynek.me/articles/docker-signals/