chart: add network policies

deployments/helm/nvidia-dra-driver-gpu/templates/networkpolicy-controller.yaml

@@ -0,0 +1,25 @@
+{{- if .Values.controller.networkPolicy.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ include "nvidia-dra-driver-gpu.name" . }}-controller
+  namespace: {{ include "nvidia-dra-driver-gpu.namespace" . }}
+  labels:
+    {{- include "nvidia-dra-driver-gpu.labels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "nvidia-dra-driver-gpu.selectorLabels" (dict "context" . "componentName" "controller") | nindent 6 }}
+  policyTypes:
+  - Egress
+  egress:
+  # Some CNIs are not capable of controlling access to host network resources nor plain IP addresses,
+  # as they are identity based and these resources are not being covered this way.
+  #
+  # Therefore, we cannot filter egress traffic by destination using native network policies and pod selectors.
+  - ports:
+    - protocol: TCP
+      port: 443
+    - protocol: TCP
+      port: 6443
+{{- end }}

deployments/helm/nvidia-dra-driver-gpu/templates/networkpolicy-kubelet-plugin.yaml

@@ -0,0 +1,25 @@
+{{- if .Values.kubeletPlugin.networkPolicy.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ include "nvidia-dra-driver-gpu.name" . }}-kubelet-plugin
+  namespace: {{ include "nvidia-dra-driver-gpu.namespace" . }}
+  labels:
+    {{- include "nvidia-dra-driver-gpu.labels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "nvidia-dra-driver-gpu.selectorLabels" (dict "context" . "componentName" "kubelet-plugin") | nindent 6 }}
+  policyTypes:
+  - Egress
+  egress:
+  # Some CNIs are not capable of controlling access to host network resources nor plain IP addresses,
+  # as they are identity based and these resources are not being covered this way.
+  #
+  # Therefore, we cannot filter egress traffic by destination using native network policies and pod selectors.
+  - ports:
+    - protocol: TCP
+      port: 443
+    - protocol: TCP
+      port: 6443
+{{- end }}

deployments/helm/nvidia-dra-driver-gpu/values.yaml

@@ -190,6 +190,10 @@ controller:
         - matchExpressions:
           - key: "node-role.kubernetes.io/control-plane"
             operator: "Exists"
+  # Network policy settings
+  networkPolicy:
+    # If the network policy is enabled or not
+    enabled: false
 
 kubeletPlugin:
   priorityClassName: "system-node-critical"
@@ -245,3 +249,7 @@ kubeletPlugin:
             operator: In
             values:
             - "true"
+  # Network policy settings
+  networkPolicy:
+    # If the network policy is enabled or not
+    enabled: false