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uvms-guest: select() to detect dead subprocesses

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Else Someone 2026-03-02 05:07:52 +02:00
parent dd6609ba3f
commit 00ae88e8ad
3 changed files with 127 additions and 70 deletions
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22
profiles/baseImage.nix
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@ -39,9 +39,9 @@ in
./on-failure.nix
];
config = {
some.failure-handler.enable = true;
# some.failure-handler.enable = true;
hardware.graphics.enable = true;
# boot.kernelPackages = pkgs.linuxPackagesFor uvmsPkgs.linux-uvm;
boot.kernelPackages = pkgs.linuxPackagesFor uvmsPkgs.linux-uvm;
# boot.isContainer = true;
boot.initrd.kernelModules = [
"drm"
@ -256,14 +256,26 @@ in
partOf = [ "uvms-guest.service" ];
};
systemd.services."uvms-guest" = {
requiredBy = [ "multi-user.target" ];
onFailure = [ "shutdown.service" ];
serviceConfig = {
User = "user";
Group = "users";
ExecStart = "${lib.getExe uvmsPkgs.uvms-guest}";
ExecStop = [
"/run/current-system/sw/bin/echo GUEST DOWN"
"/run/current-system/sw/bin/systemctl poweroff"
];
StandardOutput = "journal+console";
StandardError = "journal+console";
Restart = "no";
};
};
systemd.services."shutdown" = {
serviceConfig = {
ExecStart = [ "/run/current-system/sw/bin/systemctl poweroff" ];
StandardOutput = "journal+console";
StandardError = "journal+console";
Restart = "on-failure";
RestartSec = 5;
};
};
@ -371,7 +383,7 @@ in
options = {
size = mkOption {
type = types.int;
default = 1536 * 1048576;
default = 3 * 1024 * 1048576;
};
shared = mkOption {
type = types.bool;