node_exporter: Add priorityClassName as system-cluster-critical

jsonnet/kube-prometheus/components/node-exporter.libsonnet

@@ -249,6 +249,7 @@ function(params) {
             ],
             automountServiceAccountToken: true,
             serviceAccountName: ne._config.name,
+            priorityClassName: 'system-cluster-critical',
             securityContext: {
               runAsUser: 65534,
               runAsNonRoot: true,

manifests/nodeExporter-daemonset.yaml

@@ -97,6 +97,7 @@ spec:
       hostPID: true
       nodeSelector:
         kubernetes.io/os: linux
+      priorityClassName: system-cluster-critical
       securityContext:
         runAsNonRoot: true
         runAsUser: 65534