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Istio/README.md
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@ -34,3 +34,24 @@ Internal and external authentication should be set together.
https://istio.io/latest/docs/ops/diagnostic-tools/proxy-cmd/
## Services port names
Istio allows to specify which protocol will run through a port.
It requires the name of the port to be set to a specific format `name: <protocol>(-<suffix>)`.
Starting from Kubernetes 1.18, it also can be specified through the `appProtocol` field in the port, resulting in `appProtocol: <protocol>`.
This means that port names should respect this format to avoid issues, and for such be cautious when setting up the name of the ports.
This applies to multiple Istio elements, but as well to `kind: Services` from default Kubernetes.
For more information about this behavior, refer to:
https://istio.io/latest/docs/ops/configuration/traffic-management/protocol-selection/#explicit-protocol-selection
# Links of interest
- https://istiobyexample.dev/