Hi, I have a working python snap. It has 2 threads and they share a Queue in a persistent disk file. If snap gets refreshed, it will be stopped and started, which might cause data loss (at least of 1 element…). What is the proper way to handle the snap stop signal (in python if possible…)? I wa…

@sirvo , I do something very similar and have it working quite nicely. As others pointed out, assuming that your python script is triggered as a systemd service (probably type “simple”), then what you need to do is handle SIGTERM within the script. There’s actually nothing specific to snapcraft here. …

Handling restart signal

snapd

mborzecki June 11, 2018, 5:10am 3

See the following post for details on refresh-mode and stop-mode:

You’ll ultimately want to use, eg. stop-mode: sigterm and then establish a proper handler for SIGTERM in the code.