make GetStorageAccesskey public as a lib

pkg/cloudprovider/providers/azure/azure_blobDiskController.go

@@ -108,7 +108,7 @@ func (c *BlobDiskController) DeleteVolume(diskURI string) error {
 	if err != nil {
 		return fmt.Errorf("failed to parse vhd URI %v", err)
 	}
-	key, err := c.common.cloud.getStorageAccesskey(accountName, c.common.resourceGroup)
+	key, err := c.common.cloud.GetStorageAccesskey(accountName, c.common.resourceGroup)
 	if err != nil {
 		return fmt.Errorf("no key for storage account %s, err %v", accountName, err)
 	}

pkg/cloudprovider/providers/azure/azure_storageaccount.go

@@ -64,8 +64,8 @@ func (az *Cloud) getStorageAccounts(matchingAccountType, matchingAccountKind, re
 	return accounts, nil
 }
 
-// getStorageAccesskey gets the storage account access key
-func (az *Cloud) getStorageAccesskey(account, resourceGroup string) (string, error) {
+// GetStorageAccesskey gets the storage account access key
+func (az *Cloud) GetStorageAccesskey(account, resourceGroup string) (string, error) {
 	ctx, cancel := getContextWithCancel()
 	defer cancel()
 
@@ -137,7 +137,7 @@ func (az *Cloud) ensureStorageAccount(accountName, accountType, accountKind, res
 	}
 
 	// find the access key with this account
-	accountKey, err := az.getStorageAccesskey(accountName, resourceGroup)
+	accountKey, err := az.GetStorageAccesskey(accountName, resourceGroup)
 	if err != nil {
 		return "", "", fmt.Errorf("could not get storage key for storage account %s: %v", accountName, err)
 	}

pkg/cloudprovider/providers/azure/azure_storageaccount_test.go

@@ -64,7 +64,7 @@ func TestGetStorageAccessKeys(t *testing.T) {
 		expectedKey := test.expectedKey
 		fake.Keys = test.results
 		fake.Err = test.err
-		key, err := cloud.getStorageAccesskey("acct", "rg")
+		key, err := cloud.GetStorageAccesskey("acct", "rg")
 		if test.expectErr && err == nil {
 			t.Errorf("Unexpected non-error")
 			continue