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Actually enforce the roles

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ItsDrike 2024-04-13 21:15:25 +02:00
parent 01e3567653
commit dd00ed5f70
Signed by: ItsDrike
GPG key ID: FA2745890B7048C0
9 changed files with 238 additions and 193 deletions
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44
system/roles/workstation/services/earlyoom.nix
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@ -1,22 +1,28 @@
{pkgs, ...}: {
# https://dataswamp.org/~solene/2022-09-28-earlyoom.html
# avoid the linux kernel locking itself when we're putting too much strain on the memory
# this helps avoid having to shut down forcefully when we OOM
services.earlyoom = {
enable = true;
enableNotifications = true; # annoying, but we want to know what's killed
freeSwapThreshold = 2;
freeMemThreshold = 2;
extraArgs = [
"-g" # kill all processes within a process group
"--avoid 'Hyprland|soffice|soffice.bin|firefox|thunderbird)$'" # things we want to not kill
"--prefer '^(electron|.*.exe)$'" # I wish we could kill electron permanently
];
{pkgs, lib, config, ...}: let
inherit (lib) mkIf;
deviceType = config.myOptions.device.roles.type;
acceptedTypes = ["laptop" "desktop"];
in {
config = mkIf (builtins.elem deviceType acceptedTypes) {
# https://dataswamp.org/~solene/2022-09-28-earlyoom.html
# avoid the linux kernel locking itself when we're putting too much strain on the memory
# this helps avoid having to shut down forcefully when we OOM
services.earlyoom = {
enable = true;
enableNotifications = true; # annoying, but we want to know what's killed
freeSwapThreshold = 2;
freeMemThreshold = 2;
extraArgs = [
"-g" # kill all processes within a process group
"--avoid 'Hyprland|soffice|soffice.bin|firefox|thunderbird)$'" # things we want to not kill
"--prefer '^(electron|.*.exe)$'" # I wish we could kill electron permanently
];
# we should ideally write the logs into a designated log file; or even better, to the journal
# for now we can hope this echo sends the log to somewhere we can observe later
killHook = pkgs.writeShellScript "earlyoom-kill-hook" ''
echo "Process $EARLYOOM_NAME ($EARLYOOM_PID) was killed"
'';
# we should ideally write the logs into a designated log file; or even better, to the journal
# for now we can hope this echo sends the log to somewhere we can observe later
killHook = pkgs.writeShellScript "earlyoom-kill-hook" ''
echo "Process $EARLYOOM_NAME ($EARLYOOM_PID) was killed"
'';
};
};
}