Kubernetes 为什么针对EKS托管服务的ALB端点上出现502个错误

我正在EKS中构建一个服务，它有两个部署、两个服务（NodePort）和一个入口

• 我正在使用aws alb入口控制器
• 当我运行kubectl port forward POD 8080:80时，它确实会显示我的工作POD
• 当我查看alb生成的端点时，我得到502个错误
• 当我查看目标组的注册目标时，我看到消息，健康检查失败，代码为：[502]

这是我完整的yaml

---
#Example game deployment and service
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: "example-game"
  namespace: "example-app"
spec:
  replicas: 5
  template:
    metadata:
      labels:
        app: "example-game"
    spec:
      containers:
      - image: alexwhen/docker-2048
        imagePullPolicy: Always
        name: "example-game"
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: "service-example-game"
  namespace: "example-app"
spec:
  ports:
    - port: 80
      targetPort: 80
      protocol: TCP
  type: NodePort
  selector:
    app: "example-app"


#Example nginxdemo Deployment and Service
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: "example-nginxdemo"
  namespace: "example-app"
spec:
  replicas: 5
  template:
    metadata:
      labels:
        app: "example-nginxdemo"
    spec:
      containers:
      - image: nginxdemos/hello
        imagePullPolicy: Always
        name: "example-nginxdemo"
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: "service-example-nginxdemo"
  namespace: "example-app"
spec:
  ports:
    - port: 80
      targetPort: 80
      protocol: TCP
  type: NodePort
  selector:
    app: "example-app"
---

#Shared ALB ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: "example-ingress"
  namespace: "example-app"
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/healthcheck-protocol: HTTP
    Alb.ingress.kubernetes.io/healthcheck-port: traffic-port
    alb.ingress.kubernetes.io/healthcheck-path: /

#   alb.ingress.kubernetes.io/scheme: internal
#   alb.ingress.kubernetes.io/load-balancer-attributes: routing.http2.enabled=true

  labels:
    app: example-app
spec:
  rules:
    - http:
        paths:
          - path: /game/*
            backend:
              serviceName: "service-example-game"
              servicePort: 80
          - path: /nginxdemo/*
            backend:
              serviceName: "service-example-nginxdemo"
              servicePort: 80

---

我不知道为什么，但事实证明，安格尔的标签必须是唯一的

---

当我将标签从“示例应用程序”更改为“示例应用程序入口”时，它才开始工作。

因此，在大量更改和尝试的最后，这似乎很愚蠢，我不认为这是答案，但我将入口的标签更改为与其他标签不同