synchronization

网关/Ingress/Ingress公开TCP和UDP服务.md

@@ -0,0 +1,46 @@
+> 本文作者：丁辉
+
+# Ingress公开TCP和UDP服务
+
+[官方文档](https://kubernetes.github.io/ingress-nginx/user-guide/exposing-tcp-udp-services/)
+
+1. 添加 Ingress 启动参数
+
+   ```yaml
+   - --tcp-services-configmap=$(POD_NAMESPACE)/ingress-nginx-tcp
+   - --udp-services-configmap=$(POD_NAMESPACE)/ingress-nginx-udp
+   ```
+
+2. 创建 Configmap
+
+   > 格式为：<service port>:<namespace/service name>:[PROXY]:[PROXY]
+
+   - TCP
+
+     ```yaml
+     cat <<EOF | kubectl apply -f -
+     apiVersion: v1
+     kind: ConfigMap
+     metadata:
+       name: ingress-nginx-tcp
+       namespace: default
+     data:
+       9000: "default/example-go:8080"
+     EOF
+     ```
+
+   - UDP
+
+     ```yaml
+     cat <<EOF | kubectl apply -f -
+     apiVersion: v1
+     kind: ConfigMap
+     metadata:
+       name: ingress-nginx-udp
+       namespace: default
+     data:
+       53: "kube-system/kube-dns:53"
+     EOF
+     ```
+
+3. 创建完 Configmap 后即可测试访问对应端口