DRA Device Binding Conditions #5007 document

content/en/docs/concepts/scheduling-eviction/dynamic-resource-allocation.md

@@ -324,6 +324,21 @@ When the feature is disabled, that field automatically gets cleared when storing
 A ResourceClaim device status is supported when it is possible, from a DRA driver, to update an 
 existing ResourceClaim where the `status.devices` field is set. 
 
+## Device Binding Conditions
+
+{{< feature-state feature_gate_name="DRADeviceBindingConditions" >}}
+
+Device Binding Conditions allow for the setting of BindingConditions and BindingFailureConditions, which help determine if a device needs preparation before proceeding to the Bind Phase.
+This is particularly useful in systems where devices must be attached to nodes. The DRA driver sets these conditions based on the specific characteristics of the device it manages.
+
+A key feature is the ability to wait for device attachment during the PreBind Phase.
+The scheduler ensures that all conditions in BindingConditions are met before moving forward.
+This involves updating the ResourceClaim with the necessary conditions and monitoring the status of the device. If a device requires preparation, the DRA driver handles these tasks and updates the conditions accordingly.
+Additionally, if any BindingFailureConditions are met, the system identifies an error and terminates the waiting process.
+
+If you want to set a timeout period for waiting during the PreBind phase, you can specify the desired number of seconds in `BindingTimeoutSeconds`.
+Furthermore, by setting `UsageRestrictedToNode` to `true`, you can configure the nodeSelector to match only a single node.
+
 ## Enabling dynamic resource allocation
 
 Dynamic resource allocation is a *beta feature* which is off by default and only enabled when the
@@ -378,6 +393,12 @@ and only enabled when the `DRAResourceClaimDeviceStatus`
 [feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
 is enabled in the kube-apiserver.
 
+### Enabling Device Binding Conditions
+
+[Device Binding Conditions](#device-binding-conditions) is an *alpha feature* and only enabled when the 
+`DRADeviceBindingConditions` [feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
+is enabled in the kube-scheduler.
+
 ## {{% heading "whatsnext" %}}
 
 - For more information on the design, see the

content/en/docs/reference/command-line-tools-reference/feature-gates/DRADeviceBindingConditions.md

@@ -0,0 +1,14 @@
+---
+title: DRADeviceBindingConditions
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: alpha
+    defaultValue: false
+    fromVersion: "1.33"
+---
+Enables support for DeviceBindingConditions in the DRA related fields. 
+This allows for thorough device readiness checks and attachment processes before Bind phase.