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Merge pull request #182577 from squalus/coredump

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nixos: systemd-coredump: improve disabled state
This commit is contained in:
Florian Klink 2022-08-03 13:32:11 +07:00 committed by GitHub
commit dfda3c3e04
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3 changed files with 74 additions and 22 deletions
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51
nixos/modules/system/boot/systemd/coredump.nix
View File

@ -28,30 +28,37 @@ in {
};
};
config = {
systemd.additionalUpstreamSystemUnits = [
"systemd-coredump.socket"
"systemd-coredump@.service"
];
config = mkMerge [
environment.etc = {
"systemd/coredump.conf".text =
''
[Coredump]
${cfg.extraConfig}
'';
(mkIf cfg.enable {
systemd.additionalUpstreamSystemUnits = [
"systemd-coredump.socket"
"systemd-coredump@.service"
];
# install provided sysctl snippets
"sysctl.d/50-coredump.conf".source = "${systemd}/example/sysctl.d/50-coredump.conf";
"sysctl.d/50-default.conf".source = "${systemd}/example/sysctl.d/50-default.conf";
};
environment.etc = {
"systemd/coredump.conf".text =
''
[Coredump]
${cfg.extraConfig}
'';
users.users.systemd-coredump = {
uid = config.ids.uids.systemd-coredump;
group = "systemd-coredump";
};
users.groups.systemd-coredump = {};
# install provided sysctl snippets
"sysctl.d/50-coredump.conf".source = "${systemd}/example/sysctl.d/50-coredump.conf";
"sysctl.d/50-default.conf".source = "${systemd}/example/sysctl.d/50-default.conf";
};
users.users.systemd-coredump = {
uid = config.ids.uids.systemd-coredump;
group = "systemd-coredump";
};
users.groups.systemd-coredump = {};
})
(mkIf (!cfg.enable) {
boot.kernel.sysctl."kernel.core_pattern" = mkDefault "core";
})
];
boot.kernel.sysctl."kernel.core_pattern" = mkIf (!cfg.enable) "core";
};
}

1
nixos/tests/all-tests.nix
View File

@ -537,6 +537,7 @@ in {
systemd-binfmt = handleTestOn ["x86_64-linux"] ./systemd-binfmt.nix {};
systemd-boot = handleTest ./systemd-boot.nix {};
systemd-confinement = handleTest ./systemd-confinement.nix {};
systemd-coredump = handleTest ./systemd-coredump.nix {};
systemd-cryptenroll = handleTest ./systemd-cryptenroll.nix {};
systemd-escaping = handleTest ./systemd-escaping.nix {};
systemd-initrd-btrfs-raid = handleTest ./systemd-initrd-btrfs-raid.nix {};

44
nixos/tests/systemd-coredump.nix Normal file
View File

@ -0,0 +1,44 @@
import ./make-test-python.nix ({ pkgs, ... }:
let
crasher = pkgs.writeCBin "crasher" "int main;";
commonConfig = {
systemd.services.crasher.serviceConfig = {
ExecStart = "${crasher}/bin/crasher";
StateDirectory = "crasher";
WorkingDirectory = "%S/crasher";
Restart = "no";
};
};
in
{
name = "systemd-coredump";
meta = with pkgs.lib.maintainers; {
maintainers = [ squalus ];
};
nodes.machine1 = { pkgs, lib, ... }: commonConfig;
nodes.machine2 = { pkgs, lib, ... }: lib.recursiveUpdate commonConfig {
systemd.coredump.enable = false;
systemd.package = pkgs.systemd.override {
withCoredump = false;
};
};
testScript = ''
with subtest("systemd-coredump enabled"):
machine1.wait_for_unit("multi-user.target")
machine1.wait_for_unit("systemd-coredump.socket")
machine1.systemctl("start crasher");
machine1.wait_until_succeeds("coredumpctl list | grep crasher", timeout=10)
machine1.fail("stat /var/lib/crasher/core")
with subtest("systemd-coredump disabled"):
machine2.systemctl("start crasher");
machine2.wait_until_succeeds("stat /var/lib/crasher/core", timeout=10)
'';
})