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update peer metadata (#15965)

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zirain 2024-11-21 05:12:00 +08:00 committed by GitHub
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content/en/docs/tasks/observability/metrics/customize-metrics/index.md
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@ -101,21 +101,20 @@ For more information, see [Common Expression Language](https://opensource.google
Istio exposes all standard [Envoy attributes](https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/advanced/attributes). Istio exposes all standard [Envoy attributes](https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/advanced/attributes).
Peer metadata is available as attributes `upstream_peer` for outbound and `downstream_peer` for inbound with the following fields: Peer metadata is available as attributes `upstream_peer` for outbound and `downstream_peer` for inbound with the following fields:
|Field | Type | Value | | Field | Type | Value |
|---|---|---| |-------------|----------|------------------------------------------------------------|
| `name` | `string` | Name of the pod. | | `app` | `string` | Application name. |
| `namespace` | `string` | Namespace that the pod runs in. | | `version` | `string` | Application version. |
| `labels` | `map` | Workload labels. | | `service` | `string` | Service instance. |
| `owner` | `string` | Workload owner. | | `revision` | `string` | Service version. |
| `workload_name` | `string` | Workload name. | | `name` | `string` | Name of the pod. |
| `platform_metadata` | `map` | Platform metadata with prefixed keys. | | `namespace` | `string` | Namespace that the pod runs in. |
| `istio_version` | `string` | Version identifier for the proxy. | | `type` | `string` | Workload type. |
| `mesh_id` | `string` | Unique identifier for the mesh. | | `workload` | `string` | Workload name. |
| `app_containers` | `list<string>` | List of short names for application containers. | | `cluster` | `string` | Identifier for the cluster to which this workload belongs. |
| `cluster_id` | `string` | Identifier for the cluster to which this workload belongs. |
For example, the expression for the peer `app` label to be used in an outbound configuration is For example, the expression for the peer `app` label to be used in an outbound configuration is
`upstream_peer.labels['app'].value`. `filter_state.downstream_peer.app` or `filter_state.upstream_peer.app`.
## Cleanup ## Cleanup