feat: 测试交付 Q1 混沌压测骨架与 Q4 镜像骨架

test/chaos/netem/apply-loss.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# 在 Linux 容器内执行：对指定网卡注入丢包。用法：apply-loss.sh <iface> <loss_percent>
+set -euo pipefail
+
+IFACE="${1:-eth0}"
+LOSS="${2:-20}"
+
+if ! command -v tc >/dev/null 2>&1; then
+  echo "tc not found; use an image with iproute2 (e.g. nicolaka/netshoot)" >&2
+  exit 1
+fi
+
+tc qdisc replace dev "$IFACE" root netem loss "${LOSS}%"
+echo "netem: iface=${IFACE} loss=${LOSS}%"
+tc qdisc show dev "$IFACE"