Process lifecycle on snap refresh

snapd
37

Here is the latest version of the process lifecycle work we have in 2.32.5:

We support for each snap app that is a daemon:

  • refresh-mode: {endure,restart} which controls if the app should be restarted at all
  • stop-mode: {sigterm,sigterm-all,sighub,sighub-all,sigusr1,sigusr1-all,sigusr2,sigusr2-all} which controls how the daemon should be stopped. The given signal is send to the main PID (when used without -all) or to all PIDs in the process group when the -all suffix is used.

So you you just want to restart your daemon but keep all the children alive you can just use “stop-mode: sigterm”.

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