使用 nginx 入口控制器公开 TCP 流量

问题描述

目前我正在使用 Docker 桌面和 Kubernetes 功能在 Windows 上进行测试。

我想通过入口控制器通过 TCP 流式传输 RTMP 数据。

我遵循了 Nginx 控制器安装指南 https://kubernetes.github.io/ingress-nginx/deploy/ 并尝试像 https://kubernetes.github.io/ingress-nginx/user-guide/exposing-tcp-udp-services/ 一样配置 TCP

请注意- --tcp-services-configmap=rtmp/tcp-services

如果我通过端口 1936 推送数据，则无法建立连接。如果我尝试使用 1935，它会起作用。我想让 Ingress 控制器将流量路由到我的服务并摆脱 LoadBalancer，因为让一个接一个的平衡器真的没有意义。

使用以下配置，我希望将数据发送到 1936 会起作用。

我错过了什么吗？

apiVersion: v1
kind: Service
Metadata:
  name: restreamer1-service
  namespace: rtmp
spec:
  type: LoadBalancer
  selector:
    app: restreamer1-service
  ports:
    - protocol: TCP
      port: 1935
      targetPort: 1935
      name: rtml-com
    - protocol: TCP
      port: 8080
      targetPort: 8080
      name: http-com
---
apiVersion: v1
kind: ConfigMap
Metadata:
  name: tcp-services
  namespace: rtmp
data:
  1936: "rtmp/restreamer1-service:1935"
---
# Source: ingress-Nginx/templates/controller-deployment.yaml
apiVersion: apps/v1
kind: Deployment
Metadata:
  labels:
    helm.sh/chart: ingress-Nginx-3.23.0
    app.kubernetes.io/name: ingress-Nginx
    app.kubernetes.io/instance: ingress-Nginx
    app.kubernetes.io/version: 0.44.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-Nginx-controller
  namespace: ingress-Nginx
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-Nginx
      app.kubernetes.io/instance: ingress-Nginx
      app.kubernetes.io/component: controller
  revisionHistoryLimit: 10
  minReadySeconds: 0
  template:
    Metadata:
      labels:
        app.kubernetes.io/name: ingress-Nginx
        app.kubernetes.io/instance: ingress-Nginx
        app.kubernetes.io/component: controller
    spec:
      dnsPolicy: ClusterFirst
      containers:
        - name: controller
          image: k8s.gcr.io/ingress-Nginx/controller:v0.44.0@sha256:3dd0fac48073beaca2d67a78c746c7593f9c575168a17139a9955a82c63c4b9a
          imagePullPolicy: IfNotPresent
          lifecycle:
            preStop:
              exec:
                command:
                  - /wait-shutdown
          args:
            - /nginx-ingress-controller
            - --publish-service=$(POD_NAMESPACE)/ingress-Nginx-controller
            - --election-id=ingress-controller-leader
            - --ingress-class=Nginx
            - --configmap=$(POD_NAMESPACE)/ingress-Nginx-controller
            - --tcp-services-configmap=rtmp/tcp-services
            - --validating-webhook=:8443
            - --validating-webhook-certificate=/usr/local/certificates/cert
            - --validating-webhook-key=/usr/local/certificates/key
          securityContext:
            capabilities:
              drop:
                - ALL
              add:
                - NET_BIND_SERVICE
            runAsUser: 101
            allowPrivilegeEscalation: true
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldpath: Metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldpath: Metadata.namespace
            - name: LD_PRELOAD
              value: /usr/local/lib/libmimalloc.so
          livenessProbe:
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 1
            successthreshold: 1
            failureThreshold: 5
          readinessProbe:
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 1
            successthreshold: 1
            failureThreshold: 3
          ports:
            - name: http
              containerPort: 80
              protocol: TCP
            - name: https
              containerPort: 443
              protocol: TCP
            - name: webhook
              containerPort: 8443
              protocol: TCP
          volumeMounts:
            - name: webhook-cert
              mountPath: /usr/local/certificates/
              readOnly: true
          resources:
            requests:
              cpu: 100m
              memory: 90Mi
      nodeselector:
        kubernetes.io/os: linux
      serviceAccountName: ingress-Nginx
      terminationGracePeriodSeconds: 300
      volumes:
        - name: webhook-cert
          secret:
            secretName: ingress-Nginx-admission

解决方法

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