Istio 1.5: Isn't `telemetry.v2.stackdriver.monitoring` flag used?

bufferings · March 12, 2020, 1:44am

I’m trying Istio 1.5 telemetry v2 with Stackdriver.
I have a question. It seems to me telemetry.v2.stackdriver.monitoring flag isn’t used. But is there any place it’s used or any plan to use it in the future?

I saw this configuration on default.yaml profile:

github.com

istio/istio/blob/c3c353285578eb68b334fc8766746b754b6b3789/operator/data/profiles/default.yaml#L400-L405


stackdriver:
  enabled: false
  logging: false
  monitoring: false
  topology: false
  configOverride: {}

And I checked the template file:

github.com

istio/istio/blob/c3c353285578eb68b334fc8766746b754b6b3789/manifests/istio-control/istio-discovery/templates/telemetryv2_1.5.yaml#L308


                  }
                vm_config:
                  vm_id: stats_outbound
                  runtime: envoy.wasm.runtime.null
                  code:
                    local:
                      inline_string: "envoy.wasm.stats"
---
{{- end }}


{{- if .Values.telemetry.v2.stackdriver.enabled }}
apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: stackdriver-filter-1.5
  {{- if .Values.global.configRootNamespace }}
  namespace: {{ .Values.global.configRootNamespace }}
  {{- else }}
  namespace: {{ .Release.Namespace }}
  {{- end }}
spec:

I can see logging and topology are used:

github.com

istio/istio/blob/c3c353285578eb68b334fc8766746b754b6b3789/manifests/istio-control/istio-discovery/templates/telemetryv2_1.5.yaml#L342-L346


{{- if not .Values.telemetry.v2.stackdriver.configOverride }}
{"enable_mesh_edges_reporting": {{ .Values.telemetry.v2.stackdriver.topology }}, "disable_server_access_logging": {{ not .Values.telemetry.v2.stackdriver.logging }}, "meshEdgesReportingDuration": "600s"}
{{- else }}
{{ toJson .Values.telemetry.v2.stackdriver.configOverride | indent 18 }}
{{- end }}

But I can’t find any usage of monitoring flag. So I’m interested in the reason why it’s there?

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Istio 1.5: Isn't `telemetry.v2.stackdriver.monitoring` flag used?

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