Metrics provided by Azure Workload Identity

The Azure Workload Identity mutating admission webhook uses opentelemetry for reporting metrics.

Prometheus is the only exporter that’s currently supported.

List of metrics provided by Azure Workload Identity

Metrics are served from port 8095, but this port is not exposed outside the pod by default. Use kubectl port-forward to access the metrics over localhost:

kubectl port-forward deploy/azure-wi-webhook-controller-manager -n azure-workload-identity-system 8095:8095 &
curl localhost:8095/metrics

Sample Metrics output

azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.001"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.002"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.003"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.004"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.005"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.006"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.007"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.008"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.009"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.01"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.02"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.03"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.04"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.05"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.06"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.07"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.08"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.09"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.1"} 0
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.2"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.3"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.4"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.5"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.6"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.7"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.8"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="0.9"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="1"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="1.5"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="2"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="2.5"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="3"} 1
azwi_mutation_request_bucket{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0",le="+Inf"} 1
azwi_mutation_request_sum{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0"} 0.104694953
azwi_mutation_request_count{namespace="default",service_name="webhook",telemetry_sdk_language="go",telemetry_sdk_name="opentelemetry",telemetry_sdk_version="0.20.0"} 1