### Logger webhook metrics

Metrics about MinIO logger webhooks.

| Path              | Description                         |
|-------------------|-------------------------------------|
| `/logger/webhook` | Metrics related to logger webhooks. |

#### `/logger/webhook`

        }
    ]
}
```

## Publish MinIO events via Webhooks

[Webhooks](https://en.wikipedia.org/wiki/Webhook) are a way to receive information when it happens, rather than continually polling for that data.

### Step 1: Add Webhook endpoint to MinIO

#### Webhooks

Istio contains both Validation and Mutating webhook configurations. These need a `caBundle` specified in order to provision the TLS trust. Because Istiod's CA certificate is somewhat dynamic, this is patched at runtime (rather than part of the install). The webhook controllers handle this patching.

	if err != nil {
		return e, fmt.Errorf("could not find valid mutatingWebhookConfiguration %q from cluster %v",
			whcName, err)
	}
	if whcList != nil && len(whcList.Items) != 0 {
		for _, wh := range whcList.Items[0].Webhooks {
			if strings.HasSuffix(wh.Name, defaultWebhookName) {
				return &ExternalInjector{client, &wh.ClientConfig, injectorAddress}, nil
			}
		}
	}

         "gridPos": {
            "h": 1,
            "w": 24,
            "x": 0,
            "y": 100
         },
         "id": 15,
         "panels": [ ],
         "title": "Webhooks",
         "type": "row"
      },
      {
         "datasource": {
            "type": "datasource",
            "uid": "-- Mixed --"
         },

    info: Info
    jsonSchemaDialect: Optional[str] = None
    servers: Optional[List[Server]] = None
    # Using Any for Specification Extensions
    paths: Optional[Dict[str, Union[PathItem, Any]]] = None
    webhooks: Optional[Dict[str, Union[PathItem, Reference]]] = None
    components: Optional[Components] = None
    security: Optional[List[Dict[str, List[str]]]] = None
    tags: Optional[List[Tag]] = None

- **Admission webhooks:** Admission webhooks are in widespread use as a Kubernetes extensibility mechanism and have been available in beta since the 1.9 release. The 1.16 release marks the graduation of admission webhooks to general availability (GA).

### Beta

  - When registering with a 1.17+ API server, a CustomResourceDefinition conversion webhook can now request that only `v1` ConversionReview requests be sent to them. Previously, conversion webhooks were required to support receiving `v1beta1` ConversionReview requests as well for...

those `$ref` fields. ([#58438](https://github.com/kubernetes/kubernetes/pull/58438), [@carlory](https://github.com/carlory))

* Webhooks now do not skip cluster-scoped resources. Before upgrading your Kubernetes clusters, double check whether you have configured webhooks for cluster-scoped objects (e.g., nodes, persistentVolume), as these webhooks will start to take effect. Delete/modify the configs if that's not desirable. ([#58185](https://github.com/kubernetes/kubernetes/pull/58185),...