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CloudNative/Kubernetes/Base/Ingress.md

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+ingress用于集群内部服务暴露到外部环境访问，它是一组请求路由规则的集合。
+```
+apiVersion: extensions/v1beta1
+kind: Ingress
+
+metadata:
+  name: demo-ingress
+  namespace: demo-ns
+  labels:
+    name: demo-ingress
+    version: v1
+spec:
+  rules:
+  - host: test.demo.com
+    http:
+      paths:
+      - path: /
+        backend:
+        serviceName: demo-svc1
+        servicePort: 80
+```