doc: add bring your own account doc

README.md

@@ -10,9 +10,6 @@ This driver allows Kubernetes to access Azure Storage through one of following m
 
 csi plugin name: `blob.csi.azure.com`
 
-#### Breaking change
-Since `v0.7.0`, driver name changed from `blobfuse.csi.azure.com` to `blob.csi.azure.com`, volume created by `v0.6.0`(or prior version) could not be mounted by `v0.7.0` driver. If you have volumes created by `v0.6.0` version, just keep the driver running in your cluster.
-
 ### Container Images & Kubernetes Compatibility:
 |driver version  |Image                                      | 1.15+  | built-in blobfuse version |
 |----------------|-------------------------------------------|--------|---------------------------|
@@ -21,6 +18,9 @@ Since `v0.7.0`, driver name changed from `blobfuse.csi.azure.com` to `blob.csi.a
 |v0.8.0          |mcr.microsoft.com/k8s/csi/blob-csi:v0.8.0  | yes    | 1.3.1                     |
 |v0.7.0          |mcr.microsoft.com/k8s/csi/blob-csi:v0.7.0  | yes    | 1.2.4                     |
 
+#### Breaking change notice
+Since `v0.7.0`, driver name changed from `blobfuse.csi.azure.com` to `blob.csi.azure.com`, volume created by `v0.6.0`(or prior version) could not be mounted by `v0.7.0` driver. If you have volumes created by `v0.6.0` version, just keep the driver running in your cluster.
+
 ### Driver parameters
 Please refer to `blob.csi.azure.com` [driver parameters](./docs/driver-parameters.md)
 

deploy/example/e2e_usage.md

@@ -1,19 +1,33 @@
 ## CSI driver example
 > refer to [driver parameters](../../docs/driver-parameters.md) for more detailed usage
 
-### Dynamic Provisioning (create storage account and blob container by CSI driver)
- - Create CSI storage class
+### Dynamic Provisioning
+#### Option#1: create storage account by CSI driver
+ - Create storage class
 ```console
 kubectl create -f https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-driver/master/deploy/example/storageclass-blobfuse.yaml
 ```
 
- - Create a statefulset with blob storage mount
+#### Option#2: bring your own storage account
+ > only available from `v0.9.0`
+ - Use `kubectl create secret` to create `azure-secret` with existing storage account name and key
+```console
+kubectl create secret generic azure-secret --from-literal accountname=NAME --from-literal accountkey="KEY" --type=Opaque
+```
+
+ - create storage class referencing `azure-secret`
+```console
+kubectl create -f https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-driver/master/deploy/example/storageclass-blob-secret.yaml
+```
+
+#### Create application
+ - Create a statefulset with volume mount
 ```console
 kubectl create -f https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-driver/master/deploy/example/statefulset.yaml
 ```
 
  - Execute `df -h` command in the container
-```
+```console
 # kubectl exec -it statefulset-blob-0 sh
 # df -h
 Filesystem      Size  Used Avail Use% Mounted on
@@ -50,13 +64,18 @@ kubectl create -f https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-dri
  - Use `kubectl create secret` to create `azure-secret` with existing storage account name and key(or sastoken)
 ```console
 kubectl create secret generic azure-secret --from-literal azurestorageaccountname=NAME --from-literal azurestorageaccountkey="KEY" --type=Opaque
-#kubectl create secret generic azure-secret --from-literal azurestorageaccountname=NAME --from-literal azurestorageaccountsastoken
+```
+
+or create `azure-secret` with existing storage account name and sastoken:
+
+```console
+kubectl create secret generic azure-secret --from-literal azurestorageaccountname=NAME --from-literal azurestorageaccountsastoken
 ="sastoken" --type=Opaque
 ```
 
 > storage account key(or sastoken) could also be stored in Azure Key Vault, check example here: [read-from-keyvault](../../docs/read-from-keyvault.md)
 
- - Create a blob storage CSI PV: download [`pv-blobfuse-csi.yaml` file](https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-driver/master/deploy/example/pv-blobfuse-csi.yaml) and edit `containerName` in `volumeAttributes`
+ - Create PV: download [`pv-blobfuse-csi.yaml` file](https://raw.githubusercontent.com/kubernetes-sigs/blob-csi-driver/master/deploy/example/pv-blobfuse-csi.yaml) and edit `containerName` in `volumeAttributes`
 ```yaml
 apiVersion: v1
 kind: PersistentVolume

pkg/blob/blob.go

@@ -53,6 +53,11 @@ const (
 	serverNameField          = "server"
 	tagsField                = "tags"
 	protocolField            = "protocol"
+	storageAccountField      = "storageaccount"
+	storageAccountTypeField  = "storageaccounttype"
+	skuNameField             = "skuname"
+	resourceGroupField       = "resourcegroup"
+	locationField            = "location"
 	secretNamespaceField     = "secretnamespace"
 	containerNameField       = "containername"
 	storeAccountKeyField     = "storeaccountkey"

pkg/blob/controllerserver.go

@@ -62,15 +62,15 @@ func (d *Driver) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest)
 	// the values to the cloud provider.
 	for k, v := range parameters {
 		switch strings.ToLower(k) {
-		case "skuname":
+		case skuNameField:
 			storageAccountType = v
-		case "storageaccounttype":
+		case storageAccountTypeField:
 			storageAccountType = v
-		case "location":
+		case locationField:
 			location = v
-		case "storageaccount":
+		case storageAccountField:
 			account = v
-		case "resourcegroup":
+		case resourceGroupField:
 			resourceGroup = v
 		case containerNameField:
 			containerName = v

pkg/blob/controllerserver_test.go

@@ -122,11 +122,11 @@ func TestCreateVolume(t *testing.T) {
 				d.cloud = &azure.Cloud{}
 				mp := make(map[string]string)
 				mp["protocol"] = "unit-test"
-				mp["skuname"] = "unit-test"
-				mp["storageaccounttype"] = "unit-test"
-				mp["location"] = "unit-test"
-				mp["storageaccount"] = "unit-test"
-				mp["resourcegroup"] = "unit-test"
+				mp[skuNameField] = "unit-test"
+				mp[storageAccountTypeField] = "unit-test"
+				mp[locationField] = "unit-test"
+				mp[storageAccountField] = "unit-test"
+				mp[resourceGroupField] = "unit-test"
 				mp["containername"] = "unit-test"
 				req := &csi.CreateVolumeRequest{
 					Name:               "unit-test",
@@ -172,7 +172,7 @@ func TestCreateVolume(t *testing.T) {
 				d.cloud = &azure.Cloud{}
 				mp := make(map[string]string)
 				mp["tags"] = "unit-test"
-				mp["storageaccounttype"] = "premium"
+				mp[storageAccountTypeField] = "premium"
 				req := &csi.CreateVolumeRequest{
 					Name:               "unit-test",
 					VolumeCapabilities: stdVolumeCapabilities,
@@ -193,11 +193,11 @@ func TestCreateVolume(t *testing.T) {
 			testFunc: func(t *testing.T) {
 				d := NewFakeDriver()
 				mp := make(map[string]string)
-				mp["skuname"] = "unit-test"
-				mp["storageaccounttype"] = "unit-test"
-				mp["location"] = "unit-test"
-				mp["storageaccount"] = "unit-test"
-				mp["resourcegroup"] = "unit-test"
+				mp[skuNameField] = "unit-test"
+				mp[storageAccountTypeField] = "unit-test"
+				mp[locationField] = "unit-test"
+				mp[storageAccountField] = "unit-test"
+				mp[resourceGroupField] = "unit-test"
 				mp["containername"] = "unit-test"
 				req := &csi.CreateVolumeRequest{
 					Name:               "unit-test",