content/en/docs/reference/config/analysis/ist0134/index.md
This message occurs when a ServiceEntry with the protocol field not set, or set to TCP, doesn't have addresses defined.
You will receive this message:
{{< text plain >}} Warning [IST0134] (ServiceEntry service-entry.default serviceentry.yaml:13) ServiceEntry addresses are required for this protocol. {{< /text >}}
When your cluster has the following ServiceEntry with unset protocol and missing addresses:
{{< text yaml >}} apiVersion: networking.istio.io/v1 kind: ServiceEntry metadata: name: service-entry namespace: default spec: hosts: - 'istio.io' exportTo: - "." ports: - number: 443 name: https location: MESH_EXTERNAL resolution: DNS {{< /text >}}
Another example of this analyzer is when you have a ServiceEntry with protocol: TCP and missing addresses:
{{< text yaml >}} apiVersion: networking.istio.io/v1 kind: ServiceEntry metadata: name: service-entry namespace: default spec: hosts: - 'istio.io' exportTo: - "." ports: - number: 443 name: https protocol: TCP location: MESH_EXTERNAL resolution: DNS {{< /text >}}
Make sure to set addresses in your ServiceEntry when protocol is not set, or set to TCP. If addresses is not set, all traffic on the port defined in the ServiceEntry is matched, regardless of the host.