Use dedicated priorityclass

Signed-off-by: Laura Lorenz <[email protected]>

Author: lauralorenz

content/en/docs/tutorials/cluster-management/install-use-dra.md

@@ -232,6 +232,20 @@ on this cluster:
           kubectl apply --server-side -f http://k8s.io/examples/dra/driver-install/clusterrolebinding.yaml
           ```
 
+1.  Create a {{< glossary_tooltip term_id="priority-class" >}} for the DRA
+    driver. The DRA driver component is responsible for important lifecycle
+    operations for Pods with claims, so you don't want it to be preempted. Learn
+    more about [pod priority and preemption
+    here](/docs/concepts/scheduling-eviction/pod-priority-preemption/). Learn
+    more about [good practices when maintaining a DRA driver
+    here](/docs/concepts/cluster-administration/dra/).
+
+    {{% code_sample language="yaml" file="dra/driver-install/priorityclass.yaml" %}}
+
+    ```shell
+    kubectl apply --server-side -f http://k8s.io/examples/dra/driver-install/priorityclass.yaml
+    ```
+
 1.  Deploy the actual DRA driver as a DaemonSet configured to run the example
    driver binary with the permissions provisioned above.
 

content/en/examples/dra/driver-install/daemonset.yaml

@@ -16,7 +16,7 @@ spec:
       labels:
         app.kubernetes.io/name: dra-example-driver
     spec:
-      priorityClassName: system-node-critical
+      priorityClassName: dra-driver-high-priority
       serviceAccountName: dra-example-driver-service-account
       securityContext:
         {}

content/en/examples/dra/driver-install/example/pod.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   containers:
   - name: ctr0
-    image: ubuntu:22.04
+    image: ubuntu:24.04
     command: ["bash", "-c"]
     args: ["export; trap 'exit 0' TERM; sleep 9999 & wait"]
     resources:

content/en/examples/dra/driver-install/priorityclass.yaml

@@ -0,0 +1,7 @@
+apiVersion: scheduling.k8s.io/v1
+kind: PriorityClass
+metadata:
+  name: dra-driver-high-priority
+value: 1000000
+globalDefault: false
+description: "This priority class should be used for DRA driver pods only."