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54 lines
1.6 KiB
Nix
54 lines
1.6 KiB
Nix
import ./make-test-python.nix ({ pkgs, ... }:
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{
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name = "systemd-oomd";
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# This test is a simplified version of systemd's testsuite-55.
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# https://github.com/systemd/systemd/blob/v251/test/units/testsuite-55.sh
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nodes.machine = { pkgs, ... }: {
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# Limit VM resource usage.
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virtualisation.memorySize = 1024;
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systemd.oomd.extraConfig.DefaultMemoryPressureDurationSec = "1s";
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systemd.slices.workload = {
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description = "Test slice for memory pressure kills";
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sliceConfig = {
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MemoryAccounting = true;
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ManagedOOMMemoryPressure = "kill";
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ManagedOOMMemoryPressureLimit = "10%";
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};
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};
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systemd.services.testbloat = {
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description = "Create a lot of memory pressure";
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serviceConfig = {
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Slice = "workload.slice";
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MemoryHigh = "5M";
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ExecStart = "${pkgs.coreutils}/bin/tail /dev/zero";
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};
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};
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systemd.services.testchill = {
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description = "No memory pressure";
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serviceConfig = {
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Slice = "workload.slice";
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MemoryHigh = "3M";
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ExecStart = "${pkgs.coreutils}/bin/sleep infinity";
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};
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};
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};
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testScript = ''
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# Start the system.
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machine.wait_for_unit("multi-user.target")
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machine.succeed("oomctl")
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machine.succeed("systemctl start testchill.service")
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with subtest("OOMd should kill the bad service"):
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machine.fail("systemctl start --wait testbloat.service")
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assert machine.get_unit_info("testbloat.service")["Result"] == "oom-kill"
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with subtest("Service without memory pressure should be untouched"):
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machine.require_unit_state("testchill.service", "active")
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'';
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})
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