amazon-web-services - EKS ALB 无法自动发现子网

Question

背景 :

我有一个 VPC与 3 个公共(public) subnets (子网可以访问互联网网关)

我在这个 VPC 中有一个 EKS 集群，EKS 集群是从控制台创建的，而不是使用 eksctl

我用了this来自官方 aws 文档的教程，我设法设置了我的 ALB Controller 并且 Controller 运行完美:

集群包含两个节点组:

第一个节点组有一个节点类型:t3a.micro

第二个节点组有一个节点类型:t3.small

$ kubectl get deployment -n kube-system aws-load-balancer-controller
NAME                           READY   UP-TO-DATE   AVAILABLE   AGE
aws-load-balancer-controller   1/1     1            1           60m

我使用了他们的游戏示例，这是 list 文件:

---
apiVersion: v1
kind: Namespace
metadata:
  name: game-2048
---
apiVersion: apps/v1
kind: Deployment
metadata:
  namespace: game-2048
  name: deployment-2048
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: app-2048
  replicas: 1
  template:
    metadata:
      labels:
        app.kubernetes.io/name: app-2048
    spec:
      containers:
      - image: alexwhen/docker-2048
        imagePullPolicy: Always
        name: app-2048
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  namespace: game-2048
  name: service-2048
spec:
  ports:
    - port: 80
      targetPort: 80
      protocol: TCP
  type: NodePort
  selector:
    app.kubernetes.io/name: app-2048
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  namespace: game-2048
  name: ingress-2048
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/target-type: ip
spec:
  rules:
    - http:
        paths:
          - path: /*
            backend:
              serviceName: service-2048
              servicePort: 80

但是，当我描述入口时:我收到以下消息

DNDT@DNDT-DEV-2 MINGW64 ~/Desktop/.k8s
$ kubectl describe ingress/ingress-2048 -n game-2048
Name:             ingress-2048
Namespace:        game-2048
Address:
Default backend:  default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
  Host        Path  Backends
  ----        ----  --------
  *
              /*   service-2048:80 (172.31.4.64:80)
Annotations:  alb.ingress.kubernetes.io/scheme: internet-facing
              alb.ingress.kubernetes.io/target-type: ip
              kubernetes.io/ingress.class: alb
Events:
  Type     Reason            Age                From     Message
  ----     ------            ----               ----     -------
  Warning  FailedBuildModel  9s (x13 over 32s)  ingress  Failed build model due to couldn't auto-discover subnets: unable to discover at least one subnet

以下是在 3 个子网上设置的标签:

这是子网的路由表，您可以看到它们附加了一个 Internet gw:

我到处搜索，他们都在谈论添加标签，我从头开始创建了一个全新的集群，但仍然遇到这个问题，还有其他我遗漏的东西吗？
我查了 this答案，但它不相关，因为它适用于 ELB 而不是 ALB，
=================================
更新:
我明确添加了子网:

alb.ingress.kubernetes.io/subnets: subnet-xxxxxx, subnet-xxxxx, subnet-xxx

现在我得到了我的外部 IP，但有一些警告

$  kubectl describe ingress/ingress-2048 -n game-2048
Name:             ingress-2048
Namespace:        game-2048
Address:          k8s-game2048-ingress2-330cc1efad-115981283.eu-central-1.elb.amazonaws.com
Default backend:  default-http-backend:80 (<error: endpoints "default-http-backend" not found>)
Rules:
  Host        Path  Backends
  ----        ----  --------
  *
              /*   service-2048:80 (172.31.13.183:80)
Annotations:  alb.ingress.kubernetes.io/scheme: internet-facing
              alb.ingress.kubernetes.io/subnets: subnet-8ea768e4, subnet-bf2821f2, subnet-7c023801
              alb.ingress.kubernetes.io/target-type: ip
              kubernetes.io/ingress.class: alb
Events:
  Type     Reason             Age   From     Message
  ----     ------             ----  ----     -------
  Warning  FailedDeployModel  43s   ingress  Failed deploy model due to ListenerNotFound: One or more listeners not found
           status code: 400, request id: e866eba4-328c-4282-a399-4e68f55ee266
  Normal   SuccessfullyReconciled  43s  ingress  Successfully reconciled

也转到浏览器并使用外部 ip 返回: 503 Service Temporarily Unavailable

Answer 1

确保 aws-load-balancer-controller 部署中的 --cluster-name 配置正确。
采用kubectl get deployment -n kube-system aws-load-balancer-controller -oyaml |grep "cluster-name"获取部署中的集群名称。
如果不正确，请使用下一个命令编辑部署并重命名:kubectl edit deployment -n kube-system aws-load-balancer-controller