added NV CVE db version function

.functions/kubernetes.sh

@@ -64,3 +64,14 @@ function k8s_list_deprecation_apis(){
     fi
     kubectl get --raw /metrics | prom2json | jq -c '.[] | select(.name=="apiserver_requested_deprecated_apis").metrics[].labels' | column -t -s'{}[],"'
 }
+
+function neuvector_cve_db_version(){
+    local NAMESPACE="cattle-neuvector-system"
+
+    printf "%-40s %s\n" "Pod" "CVE DB version"
+
+    for POD in $(kubectl -n $NAMESPACE get pods -l 'app=neuvector-scanner-pod' --template "{{range .items}}{{.metadata.name}}{{\"\n\"}}{{end}}"); do
+        version="$(kubectl -n "$NAMESPACE" logs "$POD" | grep "Expand new DB" | tail -1 | sed -n 's/.*Expand new DB - version=\([0-9]*\.[0-9]*\)/\1/p')"
+        printf "%-40s %s\n" "$POD" "$version"
+    done
+}