feat: optimize azcopy perf in volume cloning scenario

Author: andyzhangx

charts/latest/blob-csi-driver-1.25.2.tgz

@@ -182,6 +182,12 @@ spec:
             - name: AZURE_ENVIRONMENT_FILEPATH
               value: /etc/kubernetes/azurestackcloud.json
             {{- end }}
+            - name: AZCOPY_CONCURRENCY_VALUE
+              value: "10"
+            - name: AZCOPY_CONCURRENT_FILES
+              value: "20"
+            - name: AZCOPY_BUFFER_GB
+              value: "1"
           imagePullPolicy: {{ .Values.image.blob.pullPolicy }}
           volumeMounts:
             - mountPath: /csi

charts/latest/blob-csi-driver/templates/csi-blob-controller.yaml

@@ -114,6 +114,12 @@ spec:
                   optional: true
             - name: CSI_ENDPOINT
               value: unix:///csi/csi.sock
+            - name: AZCOPY_CONCURRENCY_VALUE
+              value: "10"
+            - name: AZCOPY_CONCURRENT_FILES
+              value: "20"
+            - name: AZCOPY_BUFFER_GB
+              value: "1"
           volumeMounts:
             - mountPath: /csi
               name: socket-dir

deploy/csi-blob-controller.yaml

@@ -165,7 +165,7 @@ var (
 
 	// azcopyCloneVolumeOptions used in volume cloning between different storage account and --check-length to false because volume data may be in changing state, copy volume is not same as current source volume,
 	// set --s2s-preserve-access-tier=false to avoid BlobAccessTierNotSupportedForAccountType error in azcopy
-	azcopyCloneVolumeOptions = []string{"--recursive", "--check-length=false", "--s2s-preserve-access-tier=false"}
+	azcopyCloneVolumeOptions = []string{"--recursive", "--check-length=false", "--s2s-preserve-access-tier=false", "--log-level=ERROR"}
 )
 
 // DriverOptions defines driver parameters specified in driver deployment