[increment] fixes up mkdir problem, attempts adding the opaque params properly

cmd/dra-multus-driver/example.yaml

@@ -6,9 +6,9 @@ metadata:
   namespace: default
 spec:
   config: '{
-    "cniVersion": "0.3.1",
+    "cniVersion": "0.4.0",
     "type": "bridge",
-    "bridge": "br0",
+    "bridge": "cni0",
     "ipam": {
       "type": "static",
       "addresses": [
@@ -41,11 +41,10 @@ spec:
         - name: bridge-net
           deviceClassName: multus-dra.k8s.cni.cncf.io
       config:
-        name: netattachdef
-        parameters:
-          driver: multus-dra.k8s.cni.cncf.io
-          nadName: macvlan-conf
-          nadNamespace: default
+        - opaque:
+            driver: multus-dra.k8s.cni.cncf.io
+            parameters:
+              networks: bridge-net
 ---
 apiVersion: v1
 kind: Pod

cmd/dra-multus-driver/main.go

@@ -96,16 +96,27 @@ func newApp() *cli.App {
 }
 
 func StartPlugin(ctx context.Context, config *Config) error {
+	klog.Infof("Creating driver plugin directory: %s", DriverPluginPath)
 	err := os.MkdirAll(DriverPluginPath, 0750)
 	if err != nil {
 		return err
 	}
 
-	err = os.MkdirAll(config.flags.resolvedConfigDir, 0750)
-	if err != nil {
+	klog.Infof("Checking CDI root: %s", config.flags.cdiRoot)
+	info, err := os.Stat(config.flags.cdiRoot)
+	switch {
+	case err != nil && os.IsNotExist(err):
+		err := os.MkdirAll(config.flags.cdiRoot, 0750)
+		if err != nil {
+			return err
+		}
+	case err != nil:
 		return err
+	case !info.IsDir():
+		return fmt.Errorf("path for cdi file generation is not a directory: '%v'", err)
 	}
 
+	klog.Infof("Starting %s", DriverName)
 	driver, err := NewDriver(ctx, config)
 	if err != nil {
 		return err