Kubernetes - 入口路径正则表达式 - 包含无效字符

Question

使用正则表达式时出现以下错误。我想根据查询字符串进行过滤，以将流量发送到不同的端口。

controller.go:217] kubebuilder/controller "msg"="Reconciler error" "error"="failed to reconcile listeners due to failed to reconcile rules due to failed creating rule 1 on arn:aws:elasticloadbalancing:ap-south-1:1234:listener/app/51233e9-testwebdev-test-1eb8/1234 due to ValidationError: Condition value '/(action=.*\u0026uid.*test=[0-9]+)|test|status\u0026uid)' contains a character that is not valid\n\tstatus code: 400, request id: 664231b0-7c95-4ee6-a14b-fb83e9d7590a"  "controller"="alb-ingress-controller" "request"={"Namespace":"test-web-dev","Name":"test-ingress-dev"

该路径有正则表达式，如下所示

  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
    nginx.ingress.kubernetes.io/use-regex: "true"
    ....

  paths:
    - path: "/.*(action=.*&uid.*test=[0-9]+)|(test|status&uid)"
      backend:
        serviceName: httpd
        servicePort: 1234
    - path: /
      backend:
        serviceName: httpd
        servicePort: 443

Answer 1

正如我看到的清单，您的 Ingress 配置为 AWS ALB 而不是 NGINX，因为kubernetes.io/ingress.class: alb. 因此，您应该配置 AWS 路径条件合规性，请参阅路径条件了解更多详细信息。AFAIK，部分支持 AWS ALB 正则表达式，而不是完整的正则表达式。

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A path pattern is case-sensitive, can be up to 128 characters in length, and can contain any of the following characters.\n\n1. A\xe2\x80\x93Z, a\xe2\x80\x93z, 0\xe2\x80\x939\n\n2. _ - . $ / ~ " \' @ : +\n\n3. & (using &)\n\n4. * (matches 0 or more characters)\n\n5. ? (matches exactly 1 character)\n

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