From ad7d73608e1cbe5b8c97ca7e7b63b8779dd1be7a Mon Sep 17 00:00:00 2001
From: mwiegand <martin.wiegand@seibert.group>
Date: Sat, 9 May 2026 09:48:41 +0200
Subject: [PATCH] feat(deploy): l4d2-game.slice + l4d2-build.slice with 100:1
 weight ratio

Flat top-level slices. Game wins under contention; build still gets
the box when uncontended. Referenced by left4me-server@.service and
the script-sandbox systemd-run invocation.
---
 .../local/lib/systemd/system/l4d2-build.slice  |  7 +++++++
 .../local/lib/systemd/system/l4d2-game.slice   |  7 +++++++
 deploy/tests/test_deploy_artifacts.py          | 18 ++++++++++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 deploy/files/usr/local/lib/systemd/system/l4d2-build.slice
 create mode 100644 deploy/files/usr/local/lib/systemd/system/l4d2-game.slice

diff --git a/deploy/files/usr/local/lib/systemd/system/l4d2-build.slice b/deploy/files/usr/local/lib/systemd/system/l4d2-build.slice
new file mode 100644
index 0000000..34c1af3
--- /dev/null
+++ b/deploy/files/usr/local/lib/systemd/system/l4d2-build.slice
@@ -0,0 +1,7 @@
+[Unit]
+Description=left4me script-sandbox build slice
+Before=slices.target
+
+[Slice]
+CPUWeight=10
+IOWeight=10
diff --git a/deploy/files/usr/local/lib/systemd/system/l4d2-game.slice b/deploy/files/usr/local/lib/systemd/system/l4d2-game.slice
new file mode 100644
index 0000000..f7284df
--- /dev/null
+++ b/deploy/files/usr/local/lib/systemd/system/l4d2-game.slice
@@ -0,0 +1,7 @@
+[Unit]
+Description=left4me game-server slice
+Before=slices.target
+
+[Slice]
+CPUWeight=1000
+IOWeight=1000
diff --git a/deploy/tests/test_deploy_artifacts.py b/deploy/tests/test_deploy_artifacts.py
index 20ef2ce..059b3d3 100644
--- a/deploy/tests/test_deploy_artifacts.py
+++ b/deploy/tests/test_deploy_artifacts.py
@@ -9,6 +9,8 @@ DEPLOY = ROOT / "deploy"
 
 WEB_UNIT = DEPLOY / "files/usr/local/lib/systemd/system/left4me-web.service"
 SERVER_UNIT = DEPLOY / "files/usr/local/lib/systemd/system/left4me-server@.service"
+GAME_SLICE = DEPLOY / "files/usr/local/lib/systemd/system/l4d2-game.slice"
+BUILD_SLICE = DEPLOY / "files/usr/local/lib/systemd/system/l4d2-build.slice"
 GLOBAL_REFRESH_SERVICE = DEPLOY / "files/usr/local/lib/systemd/system/left4me-refresh-global-overlays.service"
 GLOBAL_REFRESH_TIMER = DEPLOY / "files/usr/local/lib/systemd/system/left4me-refresh-global-overlays.timer"
 SANDBOX_UNIT_DIR = DEPLOY / "files/usr/local/lib/systemd/system"
@@ -110,6 +112,22 @@ def test_server_unit_contains_perf_baseline_directives():
     assert "LogRateLimitIntervalSec=0" in unit
 
 
+def test_l4d2_game_slice_exists_with_high_weights():
+    assert GAME_SLICE.is_file()
+    text = GAME_SLICE.read_text()
+    assert "[Slice]" in text
+    assert "CPUWeight=1000" in text
+    assert "IOWeight=1000" in text
+
+
+def test_l4d2_build_slice_exists_with_low_weights():
+    assert BUILD_SLICE.is_file()
+    text = BUILD_SLICE.read_text()
+    assert "[Slice]" in text
+    assert "CPUWeight=10" in text
+    assert "IOWeight=10" in text
+
+
 def _fake_command(tmp_path, command_name):
     marker = tmp_path / f"{command_name}.args"
     command = tmp_path / command_name