k8s 入口设置 - io.k8s.api.networking.v1.ServiceBackendPort.number 的类型无效：得到“string”，预期答案

【问题标题】：k8s ingress setup - invalid type for io.k8s.api.networking.v1.ServiceBackendPort.number: got "string", expectedk8s 入口设置 - io.k8s.api.networking.v1.ServiceBackendPort.number 的类型无效：得到“string”，预期
【发布时间】：2023-02-11 08:04:59
【问题描述】：

我正在尝试为我的前端在 kubernetes 中设置一个入口，代码如下。

datahub-frontend:
  enabled: true
  image:
    repository: linkedin/datahub-frontend-react
    tag: "v0.8.31"
  ingress:
    enabled: true
    annotations:
      kubernetes.io/ingress.class: alb
      alb.ingress.kubernetes.io/scheme: internet-facing
      alb.ingress.kubernetes.io/target-type: instance
      alb.ingress.kubernetes.io/certificate-arn: arn:aws:acm:ap-southeast-2:601628467906:certificate/xxxxxxxxxxxxx
      alb.ingress.kubernetes.io/inbound-cidrs: 0.0.0.0/0
      alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
      alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
    hosts:
      - host: xxxxx.com
        redirectPaths:
          - path: /*
            name: ssl-redirect
            port: use-annotation
        paths:
          - /*

这给了我以下错误。

Error: UPGRADE FAILED: error validating "": error validating data: ValidationError(Ingress.spec.rules[0].http.paths[0].backend.service.port.number): invalid type for io.k8s.api.networking.v1.ServiceBackendPort.number: got "string", expected "integer"

【问题讨论】：

不确定这是否有帮助，因为您的清单似乎缺少“规范”和“规则”？但是当我不小心使用了“backend.service.port.number”时，我得到了同样的错误。当我使用“backend.service.port.name”时，此错误已修复。

标签： kubernetes kubernetes-ingress

【解决方案1】：

似乎您发布的入口定义不正确。根据kubernetes doc，它缺少必需的spec 和rules。

这包含一个example ingress for ssl-redirect

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  namespace: default
  name: ingress
  annotations:
    alb.ingress.kubernetes.io/certificate-arn: arn:aws:acm:us-west-2:xxxx:certificate/xxxxxx
    alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
    alb.ingress.kubernetes.io/ssl-redirect: '443'
spec:
  ingressClassName: alb
  rules:
    - http:
        paths:
         - path: /users/*
           pathType: ImplementationSpecific
           backend:
             service:
               name: user-service
               port:
                 number: 80
         - path: /*
           pathType: ImplementationSpecific
           backend:
             service:
               name: default-service
               port:
                 number: 80

我看到您正在使用 actions 注释，您需要指定 Ingress.spec.rules[0].http.paths[0].backend.service.port.name 和 use-annotation。确保未使用 Ingress.spec.rules[0].http.paths[0].backend.service.port.number。

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-ingress
  annotations:
    ...
    ...
    alb.ingress.kubernetes.io/actions.my-rule: '{"type":"fixed-response","fixedResponseConfig":{"contentType":"text/plain","statusCode":"200","messageBody":"hello world"}}'
spec:
  rules:
  - http:
      paths:
      - path: /*
        pathType: ImplementationSpecific
        backend:
          service:
            name: my-rule
            port:
              name: use-annotation

【讨论】：