apiVersion: telemetry.istio.io/v1
kind: Telemetry
metadata:
  name: valid
spec:
  tracing:

apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
  name: valid
spec:
  tracing:

[GOOS:plan9] env userconfig=$home/lib

go telemetry
stdout 'local'

go telemetry off
go telemetry
stdout 'off'
go env GOTELEMETRY
stdout 'off'

go telemetry local
go telemetry
stdout 'local'
go env GOTELEMETRY
stdout 'local'

go telemetry on
go telemetry
stdout 'on'
go env GOTELEMETRY
stdout 'on'

go env
stdout 'GOTELEMETRY=''?on''?'

apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
  name: telemetry
  namespace: istio-system
spec:
  metrics:
  - providers:
    - name: prometheus
  accessLogging:
  - providers:
      - name: envoy-json
---
# Set up a Service associated with our proxy, which will run as 1.1.1.1 IP
apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
  name: proxy-service-instance
spec:
  hosts:

//
// When mode is "on", or "local", telemetry data is written to the local file
// system and may be inspected with the [gotelemetry] command.
//
// If an error occurs while reading the telemetry mode from the file system,
// Mode returns the default value "local".
//
// [gotelemetry]: https://pkg.go.dev/golang.org/x/telemetry/cmd/gotelemetry
func Mode() string {
	return telemetry.Mode()
}

// See the License for the specific language governing permissions and
// limitations under the License.

package features

import (
	"istio.io/istio/pkg/env"
)

// Define common telemetry feature flags shared among the Istio components.
var (
	MetricsLocalhostAccessOnly = env.Register("METRICS_LOCALHOST_ACCESS_ONLY", false,

	UseRealStackdriver bool
)

func init() {
	flag.DurationVar(&TelemetryRetryDelay, "istio.test.telemetry.retryDelay", time.Second*2, "Default retry delay used in tests")
	flag.DurationVar(&TelemetryRetryTimeout, "istio.test.telemetry.retryTimeout", time.Second*80, "Default retry timeout used in tests")
	flag.BoolVar(&UseRealStackdriver, "istio.test.telemetry.useRealStackdriver", false,

// Package telemetrycmd implements the "go telemetry" command.
package telemetrycmd

import (
	"context"
	"fmt"
	"os"

	"cmd/go/internal/base"
	"cmd/internal/telemetry"
)

var CmdTelemetry = &base.Command{
	UsageLine: "go telemetry [off|local|on]",
	Short:     "manage telemetry data and settings",
	Long: `Telemetry is used to manage Go telemetry data and settings.

Telemetry can be in one of three modes: off, local, or on.

		"If true, pilot will add telemetry related metadata to cluster and endpoint resources, which will be consumed by telemetry filter.",
	).Get()

	EndpointTelemetryLabel = env.Register("PILOT_ENDPOINT_TELEMETRY_LABEL", true,
		"If true, pilot will add telemetry related metadata to Endpoint resource, which will be consumed by telemetry filter.",
	).Get()

					},
					Logging: telemetry.Spec.GetAccessLogging(),
				})
			}
			ts = append(ts, telemetry.Spec.GetTracing()...)
		}
	}

	if namespace != t.RootNamespace {
		telemetry := t.namespaceWideTelemetryConfig(namespace)
		if telemetry != (Telemetry{}) {
			key.Namespace = types.NamespacedName{Name: telemetry.Name, Namespace: telemetry.Namespace}
			ms = append(ms, telemetry.Spec.GetMetrics()...)