docs: add Chinese translation for circuit breaker document

i18n/zh/docusaurus-plugin-content-docs/current/application-layer/circuit-breaker.md

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+---
+title: 熔断器
+sidebar_position: 10
+---
+
+本文档提供了如何测试 Kmesh 熔断功能的分步指南。它涵盖了部署必要组件、配置流量规则以及观察熔断行为。
+
+## 步骤 1. 部署 Kmesh
+
+请阅读[快速入门](https://kmesh.net/docs/setup/quick-start)完成 Kmesh 的部署。
+
+## 步骤 2. 部署 fortio 和 httpbin
+
+``` sh
+kubectl apply -f -<<EOF
+apiVersion: v1
+kind: Service
+metadata:
+  name: fortio
+  labels:
+    app: fortio
+    service: fortio
+spec:
+  ports:
+  - port: 8080
+    name: http
+  selector:
+    app: fortio
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: fortio-deploy
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: fortio
+  template:
+    metadata:
+      annotations:
+        # This annotation causes Envoy to serve cluster.outbound statistics via 15000/stats
+        # in addition to the stats normally served by Istio. The Circuit Breaking example task
+        # gives an example of inspecting Envoy stats via proxy config.
+        proxy.istio.io/config: |-
+          proxyStatsMatcher:
+            inclusionPrefixes:
+            - "cluster.outbound"
+            - "cluster_manager"
+            - "listener_manager"
+            - "server"
+            - "cluster.xds-grpc"
+      labels:
+        app: fortio
+    spec:
+      containers:
+      - name: fortio
+        image: fortio/fortio:latest_release
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+          name: http-fortio
+        - containerPort: 8079
+          name: grpc-ping
+EOF
+```
+
+```sh
+kubectl apply -f samples/httpbin/httpbin.yaml
+```
+
+## 步骤 3. 为 httpbin 配置 waypoint
+
+首先，如果您尚未安装 Kubernetes Gateway API CRD，请运行以下命令进行安装。
+
+``` sh
+kubectl get crd gateways.gateway.networking.k8s.io &> /dev/null || \
+  { kubectl kustomize "github.com/kubernetes-sigs/gateway-api/config/crd/experimental?ref=444631bfe06f3bcca5d0eadf1857eac1d369421d" | kubectl apply -f -; }
+```
+
+接下来，为 `httpbin` 服务创建专用的 Waypoint 代理，并为该服务添加标签以将其流量引导到此 Waypoint。
+
+```sh
+kmeshctl waypoint apply -n default --name httpbin-waypoint --image ghcr.io/kmesh-net/waypoint:latest
+kubectl label service httpbin istio.io/use-waypoint=httpbin-waypoint
+```
+
+## 步骤 4. 配置 DestinationRule
+
+```sh
+kubectl apply -f - <<EOF
+apiVersion: networking.istio.io/v1
+kind: DestinationRule
+metadata:
+  name: httpbin
+spec:
+  host: httpbin
+  trafficPolicy:
+    connectionPool:
+      tcp:
+        # 到目标服务的最大 TCP 连接数
+        maxConnections: 1
+      http:
+        # 最大待处理 HTTP 请求数
+        http1MaxPendingRequests: 1
+        # 每个连接允许的最大请求数
+        maxRequestsPerConnection: 1
+    outlierDetection:
+      # 熔断器设置
+      consecutive5xxErrors: 1
+      interval: 1s
+      baseEjectionTime: 3m
+      maxEjectionPercent: 100
+EOF
+```
+
+## 步骤 5. 通过 istioctl 查看 waypoint 中的 cds 配置
+
+首先，获取 Waypoint Pod 的名称。
+
+```sh
+export WAYPOINT_POD=$(kubectl get pod -l gateway.networking.k8s.io/gateway-name=httpbin-waypoint -o jsonpath='{.items[0].metadata.name}')
+```
+
+然后，查看配置。
+
+```sh
+istioctl proxy-config all $WAYPOINT_POD 
+```
+
+## 步骤 6. 通过 fortio 访问查看实际现象
+
+现在，让我们使用 `fortio` 向 `httpbin` 发送大量流量。
+
+```sh
+export FORTIO_POD=$(kubectl get pods -l app=fortio -o 'jsonpath={.items[0].metadata.name}')
+
+kubectl exec "$FORTIO_POD" -c fortio -- /usr/bin/fortio load -c 5 -qps 0 -n 50 -loglevel Warning http://httpbin:8000/get
+```
+
+您应该会看到一些请求因 503 错误而失败，这表明熔断器正在按预期工作。
+
+```sh
+...
+IP addresses distribution:
+10.96.56.163:8000: 33
+Code 200 : 19 (38.0 %)
+Code 503 : 31 (62.0 %)
+Response Header Sizes : count 50 avg 114.38 +/- 146.1 min 0 max 301 sum 5719
+Response Body/Total Sizes : count 50 avg 382.48 +/- 46.6 min 346 max 442 sum 19124
+All done 50 calls (plus 0 warmup) 3.162 ms avg, 1247.0 qps
+```