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GatewayPortNotOnWorkload analysis-message

This message occurs when a gateway (usually istio-ingressgateway) offers a port that the Kubernetes service workload selected by the gateway does not.

For example, your Istio configuration contains these values:

{{< text yaml >}}

Gateway with bogus port

apiVersion: networking.istio.io/v1alpha3 kind: Gateway metadata: name: httpbin-gateway spec: selector: istio: ingressgateway servers:

  • port: number: 80 name: http protocol: HTTP hosts:
    • "*"
  • port: number: 8004 name: http2 protocol: HTTP hosts:
    • "*" {{< /text >}}

In this example, the GatewayPortNotOnWorkload message occurs because this configuration uses port 8004, but a default IngressGateway is only open on ports 80, 443, 31400, and 15443.

To resolve this problem, change your gateway configuration to use a valid port on the workload and try again.