Get PID of leader worker

[ice1x]

Minor feature request

In Celery possible to get Master worker PID by option --pidfile=/tmp/my_file_with_pid
would be perfect to get leader worker pid in Taskiq as well.

[s3rius]

Since we only have one master process that maintains children processes. You can get the id of it by calling os.getppid.

[ice1x]

Since we only have one master process that maintains children processes. You can get the id of it by calling os.getppid.

I have tried to do that whily running 3 workers and i have discovered that only 2 pids stored and both from child process. I guess i should be able to get parent pid by echo $! > ./my_file while starting a broker in bash

But this workaround works only with manual launch taskiq.
In case of Docker CMD or k8s - attempt to catch PID via '& echo $! > ./my_file' leads to container/pod crash

[ice1x]

Resolved this issue by getting PID from the beginning of taskiq worker
bash -c 'echo $$ > /tmp/my.pid; taskiq worker ###'

But this appears not useful because i am not able to add Linux signal catch to Taskiq app (because of all my code runs only in child processes, i have discovered it while printed os.getpid from the app)