--- title: Edge description: A template designed to report observed communication edges between workloads. location: https://istio.io/docs/reference/config/policy-and-telemetry/templates/edge.html layout: protoc-gen-docs generator: protoc-gen-docs number_of_entries: 1 ---

The edge template represents an edge in the mesh graph.

Template

The edge template represents an edge in the mesh graph

When writing the configuration, the value for the fields associated with this template can either be a literal or an expression. Please note that if the datatype of a field is not istio.mixer.adapter.model.v1beta1.Value, then the expression’s inferred type must match the datatype of the field.

Example config:

apiVersion: "config.istio.io/v1alpha2"
kind: edge
metadata:
  name: default
  namespace: istio-system
spec:
  timestamp: request.time
  sourceUid: source.uid | "Unknown"
  sourceOwner: source.owner | "Unknown"
  sourceWorkloadName: source.workload.name | "Unknown"
  sourceWorkloadNamespace: source.workload.namespace | "Unknown"
  destinationUid: destination.uid | "Unknown"
  destinationOwner: destination.owner | "Unknown"
  destinationWorkloadName: destination.workload.name | "Unknown"
  destinationWorkloadNamespace: destination.workload.namespace | "Unknown"
  apiProtocol: api.protocol | "Unknown"
  contextProtocol: context.protocol | "Unknown"
Field Type Description
timestamp istio.policy.v1beta1.TimeStamp

Timestamp of the edge

sourceWorkloadNamespace string

Namespace of the source workload

sourceWorkloadName string

Name of the source workload

sourceOwner string

Owner of the source workload (often k8s deployment)

sourceUid string

UID of the source workload

destinationWorkloadNamespace string

Namespace of the destination workload

destinationWorkloadName string

Name of the destination workload

destinationOwner string

Owner of the destination workload (often k8s deployment)

destinationUid string

UID of the destination workload

contextProtocol string

Protocol used for communication (http, tcp)

apiProtocol string

The protocol type of the API call (http, https, grpc)