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driver-parameters.md

File metadata and controls

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Driver Parameters

parameter names are case-insensitive

required permissions for CSI driver controller
Microsoft.Compute/disks/read
Microsoft.Compute/disks/write
Microsoft.Compute/disks/delete
Microsoft.Compute/diskEncryptionSets/read
Microsoft.Compute/snapshots/read
Microsoft.Compute/snapshots/write
Microsoft.Compute/snapshots/delete
Microsoft.Compute/virtualMachines/write
Microsoft.Compute/virtualMachines/read
Microsoft.Compute/virtualMachineScaleSets/virtualMachines/write
Microsoft.Compute/virtualMachineScaleSets/virtualMachines/read
Microsoft.Compute/virtualMachineScaleSets/read
Microsoft.Compute/locations/operations/read
Microsoft.Compute/locations/DiskOperations/read
Microsoft.Resources/subscriptions/resourceGroups/Microsoft.Compute/read
Microsoft.Resources/subscriptions/resourceGroups/Microsoft.Compute/*/read

Dynamic Provisioning

get an example

Name Meaning Available Value Mandatory Default value
skuName azure disk storage account type (alias: storageAccountType) Standard_LRS, Premium_LRS, StandardSSD_LRS, UltraSSD_LRS, Premium_ZRS, StandardSSD_ZRS, PremiumV2_LRS
(Note: PremiumV2_LRS and UltraSSD_LRS only support None caching mode)
No StandardSSD_LRS
kind managed or unmanaged(blob based) disk managed (dedicated, shared are deprecated) No managed
fsType File System Type ext4, ext3, ext2, xfs, btrfs on Linux, ntfs on Windows No ext4 on Linux, ntfs on Windows
cachingMode Azure Data Disk Host Cache Setting None, ReadOnly, ReadWrite
(ReadWrite caching mode is deprecated, PremiumV2_LRS and UltraSSD_LRS only support None caching mode)
No ReadOnly
location specify Azure region in which Azure disk will be created, region name should only have lower-case letter or digit number. eastus2, westus, etc. No if empty, driver will use the same region name as current k8s cluster
resourceGroup specify the resource group in which azure disk will be created existing resource group name No if empty, driver will use the same resource group name as current k8s cluster
DiskIOPSReadWrite UltraSSD, PremiumV2_LRS disk IOPS capability No 500 for UltraSSD
DiskMBpsReadWrite UltraSSD, PremiumV2_LRS disk throughput capability No 100 for UltraSSD
LogicalSectorSize Logical sector size in bytes for Ultra disk. Supported values are 512 ad 4096. 4096 is the default. 512, 4096 No 4096
tags azure disk tags tag format: key1=val1,key2=val2 No ""
diskEncryptionSetID ResourceId of the disk encryption set to use for enabling encryption at rest format: /subscriptions/{subs-id}/resourceGroups/{rg-name}/providers/Microsoft.Compute/diskEncryptionSets/{diskEncryptionSet-name} No ""
diskEncryptionType encryption type of the disk encryption set EncryptionAtRestWithCustomerKey(by default), EncryptionAtRestWithPlatformAndCustomerKeys No ""
writeAcceleratorEnabled Write Accelerator on Azure Disks true, false No ""
perfProfile Block device performance tuning using perfProfiles none, basic, advanced No none
networkAccessPolicy NetworkAccessPolicy property to prevent anybody from generating the SAS URI for a disk or a snapshot AllowAll, DenyAll, AllowPrivate No AllowAll
publicNetworkAccess Enabling or disabling public access to the underlying data of a disk on the internet, even when the NetworkAccessPolicy is set to AllowAll Enabled, Disabled No Enabled
diskAccessID ARM id of the DiskAccess resource for using private endpoints on disks No ``
enableBursting enable on-demand bursting beyond the provisioned performance target of the disk. On-demand bursting only be applied to Premium disk, disk size > 512GB, Ultra & shared disk is not supported. Bursting is disabled by default. true, false No false
enablePerformancePlus enabling performance plus, this setting only applies to Premium SSD, Standard SSD and HDD with disk size > 512GB. true, false No false
attachDiskInitialDelay setting a large number for the initial delay in milliseconds for batch disk attach/detach could reduce the number of operations and ARM throttling No 1000
useragent User agent used for customer usage attribution No Generated Useragent formatted driverName/driverVersion compiler/version (OS-ARCH)
subscriptionID specify Azure subscription ID in which Azure disk will be created Azure subscription ID No if not empty, resourceGroup must be provided
  • disk created by dynamic provisioning
    • disk name format (example): pvc-e132d37f-9e8f-434a-b599-15a4ab211b39

    • tags format (example):

      k8s-azure-created-by: kubernetes-azure-dd
      kubernetes.io-created-for-pv-name: pvc-e132d37f-9e8f-434a-b599-15a4ab211b39
      kubernetes.io-created-for-pvc-name: pvc-azuredisk
      kubernetes.io-created-for-pvc-namespace: default

Static Provisioning (bring your own Azure Disk)

get an example

Name Meaning Available Value Mandatory Default value
volumeHandle Azure disk URI /subscriptions/{sub-id}/resourcegroups/{group-name}/providers/microsoft.compute/disks/{disk-id} Yes N/A
volumeAttributes.fsType File System Type ext4, ext3, ext2, xfs, btrfs on Linux, ntfs on Windows No ext4 on Linux, ntfs on Windows
volumeAttributes.partition partition num of the existing disk (only supported on Linux) 1, 2, 3 No empty(no partition)
- make sure partition format is like -part1
volumeAttributes.cachingMode disk host cache setting None, ReadOnly, ReadWrite No ReadOnly
volumeAttributes.attachDiskInitialDelay setting a large number for the initial delay in milliseconds for batch disk attach/detach could reduce the number of operations and ARM throttling No 1000

VolumeSnapshotClass

Name Meaning Available Value Mandatory Default value
resourceGroup resource group where the snapshots of the disks will be stored EXISTING RESOURCE GROUP No If not specified, snapshot will be stored in the same resource group as source Azure disk
incremental take full or incremental snapshot true, false No true
dataAccessAuthMode enable data access authentication mode when creating a snapshot None, AzureActiveDirectory No None
tags azure disk tags tag format: 'key1=val1,key2=val2' No ""
userAgent User agent used for customer usage attribution No Generated Useragent formatted driverName/driverVersion compiler/version (OS-ARCH)
subscriptionID specify Azure subscription ID in which Azure disk will be created Azure subscription ID No if not empty, resourceGroup must be provided, incremental must set as false
location specify Azure region in which Azure disk snapshot will be created, region name should only have lower-case letter or digit number. eastus2, westus, etc. No if empty, driver will use the same region name as current k8s cluster