### Selection API

- plugin config "exclude namespaces" applies first
- ambient is enabled if:
    - namespace label "istio.io/dataplane-mode" == "ambient", and/or pod label "istio.io/dataplane-mode" == "ambient"
    - "sidecar.istio.io/status" annotation is not present on the pod (created by injection of sidecar)
    - pod label "istio.io/dataplane-mode" is not "none"
- sidecar interception is enabled if:

can use different Istio versions and different configuration defaults.

`istioctl kube-inject` or the automatic sidecar injector are used to select the environment.
In the case of the sidecar injector, the namespace label `istio-env: <NAME_OF_ENV>` is used instead
of the conventional `istio-injected: true`. The name of the environment is defined as the namespace

# Istio Operator

The istio/operator repo is part of istio/istio from 1.5 onwards.
You can [contribute](../CONTRIBUTING.md) by picking an
[unassigned open issue](https://github.com/istio/istio/issues?q=is%3Aissue+is%3Aopen+label%3Aarea%2Fenvironments%2Foperator+no%3Aassignee),
creating a [bug or feature request](../BUGS-AND-FEATURE-REQUESTS.md),

`foo=bar,istio=ingressgateway`:

```yaml
name: my-custom-gateway # Override the name to match existing resources
labels:
  app: "" # Unset default app selector label
  istio: ingressgateway # override default istio selector label
  foo: bar # Add the existing custom selector label
```

#### Migrating an existing Helm release