Public preview of Azure Cloud Shell

At the recent Build conference, Microsoft officially announced public preview of Azure Cloud Shell browser-accessible, pre-configured shell experience for managing Azure resources without the overhead of installing, versioning, and maintaining a machine yourself.

Cloud Shell runs entirely on containers orchestrated by Kubernetes and shows us just another example of how container technology can revolutionize solutions built on Azure.

Machine for Cloud Shell is not persistent and temporary provided on a per-request basis (1 machine per 1 user, permissions are set as a regular Linux user). That machine’s hosting is free. You just need to pay for storage that it consumes (file share –> described later in this post).

Cloud Shell comes with the support of well known tools and languages:

Category Name
Azure Tools Azure CLI 2.0 and 1.0
Linux shell interpreter Bash,sh
Text editors vim,nano,emacs
Containers Docker,Kubectl, DC/OS CLI
Language Version
.NET 1.01
Go 1.7
Node.js 6.9.4
Python 2.7 and 3.5
More: use this link

It supports Bash experience so far. Everyone’s favorite PowerShell is coming soon. You can try the new shell today by pressing the special icon at the top navigation bar of the Azure portal.

azure

The new storage account (LRS), resources group and file share will be created during one-time setup.

  • Resource group is named: cloud-shell-storage-
  • Storage Account: cs-uniqueGuid
  • File Share: cs—com-uniqueGuid

As Cloud Shell’s machine is temporary, file share makes possible to persist your bash $Home directory. This file share will mount as clouddrive under your $Home directory and it’s also used to store a 5 GB image created for you that automatically updates and persists your $Home directory as well (see the pic below, acc_<username>.img).

Note: you pay only for this file share. There are no any  additional compute costs.

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To download/upload files you can use portal as usual. For example, I created txt-file in my clouddrive and would like to download it to my local machine. So, I need to open the file share associated with cloud shell, locate the file “text.txt” and just hit “Download”.

To add some files from local machine to clouddrive, use the “Upload” button and then check result by running cd clouddrive and  ls in the cloud shell session

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As you may noticed, Cloud Shell automatically authenticates on each session for instant access to your resources through the Azure CLI 2.0. You can even use the interactive mode for Azure CLI 2.0 to ease scripting and save a lot of time

azure shell

Each cloud shell session times out after 10 minutes without any activities

image

That’s great, but that is not the whole news

Cloud Shell is also embedded directly in docs.microsoft.com and it makes Azure CLI samples in documentation fully interactive. To evaluate this new functionality, go to Azure CLI 2.0 documentation, log in to Cloud Shell by clicking “Try it” and start learning in just a new way.

azure cloud shell and docs

Some more examples

Creating VM in the cloud shell

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List of VMs in the resource group with customized output

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TOTD: How to manually move Azure VMs to another subscription

Here is a new tip of the day. We’ll discuss only the Azure Resource Manager. Azure Service Management (ASM or classical) won’t be covered.

Azure portal has a simple built-in tool to migrate resources between subscriptions/resource groups and it’s available under Resource Group – Move

azure move in portal

Or using PowerShell :  Move-AzureRmResource

It’s also well described @MSDN and there are some main limitations that we need to consider:

  • Move in Azure Portal works only for subscriptions/resources groups in the same tenant (the most important!)
  • Not any resources can be migrated. For example, it’s not supported to move VPN Gateway or Recovery vaults. So we need to create and configure the new ones in the target subscription.
  • There are different limitations for ASM (classical deployments) and ARM. Check them before migration.

If the tenant IDs for the source and destination subscriptions are not the same, you can attempt to change the directory for the subscription. This operation requires Service Administrator which sometimes are not available for user. For example, migration from CSP to EA.
In this case, manual migration is required.

To get list of subscriptions and TenantIDs associated with them use PowerShell:

get azure subscriptions and tenants

In this example, the first two subscriptions are in the same tenant and migration between them can be done through Azure portal using Move option.

However, moving resources between the subscriptions “Visual Studio Premium..” and “Microsoft Azure Sponsorship” requires manual migration steps (look at the TenantID..they are different).

So, how to move? It’s quiet simple if you are familiar with AzCopy and Azure PowerShell.

The process of migration consists of several simple steps:

  • Prepare your target subscription (general services like storage accounts and networks)
  • Download and install AzCopy, stop VMs, copy VHDs of each VM to the target
  • Install AzureRM module, create VMs using the copied VHDs
  • Add additional resources such as VPN Gateways/S2S connections and Recovery vaults (optional)

Some details

1) To copy (asynchronously) VHDs use the following command

AzCopy /Source:<Source URI>  /Dest:<Dest URI>  /SourceKey:<Source Key> /Pattern:<sorcevhdname.vhd>

<Source Key>  is one of the access keys (Storage Account – Access Keys or use PowerShell):

List of all storage accounts in the source subscription


Get-AzureRmStorageAccount|Ft ResourceGroupName,StorageAccountName

list of azure storage accounts

List of source storage account keys (example). Use one of the keys value with AzCopy

Get-AzureRmStorageAccountKey -ResourceGroupName <resource group name> -Name <storage account name>|ft -AutoSize

azure storage account keys

To get URIs and VHDs name (Storage Account – Containers – <name of container>):

(Get-AzureRmStorageAccount -Name <stor acc name> -ResourceGroupName <rg name>|Get-AzureStorageContainer|Get-AzureStorageBlob).ICloudBlob.uri.AbsoluteUri

azure uri and vhds

Stop VM or VMs and run copy in AzCopy then. Wait while AzCopy finishes initiated process.

Tip: prepare script for all VMs before stopping them. simultaneous copies are allowed.

2) Open PowerShell ISE with installed AzureRM module, replace values (variables and subID) with yours and run:

#Open new Azure session
Login-AzureRMAccount

#Target subscription details
$sub=(Get-AzureRMSubscription -SubscriptionName "your subscription name" ).TenantId
Select-AzureRmSubscription -SubscriptionId $sub

#Variables
$rgname = "your rg name"
$vmsize = "required VM size <Example:Standard_A4>"
$vmname = "your vm name"
$locName="location (example:East US)"
$nicName="VMName_Nic"
$vnetName="Virtual Network Name"
$SubName = "Subnet Name"
$osDiskName = "vmdiskname"
$osDiskVhdUri = "https://destination.blob.core.windows.net/vhds/name.vhd"

#New VM config
$newvm = New-AzureRmVMConfig -VMName $vmname -VMSize $vmsize

#Get virtual network
$vnet=Get-AzureRmVirtualNetwork -Name $vnetName -ResourceGroupName $rgName

#Get subnet
$subnet = $vnet.Subnets | Where-Object { $_.Name -eq $SubName}

#New Public IP
$publicip=New-AzureRmPublicIpAddress -Name $nicName -ResourceGroupName $rgName -Location $locName -AllocationMethod Dynamic

#New nic for VM
$nic=New-AzureRmNetworkInterface -Name $nicName -ResourceGroupName $rgName -Location $locName -SubnetId $subnet.Id  -PublicIpAddressId $publicip.Id

#Update VM config
$newvm = Add-AzureRmVMNetworkInterface -VM $newvm -Id $nic.Id

#Attach copied disk to VM (sample. just one OS disk)
$newvm = Set-AzureRmVMOSDisk -VM $newvm -VhdUri $osDiskVhdUri -name $osDiskName -CreateOption attach -Windows

#Create VM
New-AzureRmVM -ResourceGroupName $rgname -Location $locName -VM $newvm

Verify that VM is running in the target subscription and all disks are attached.

Note: latest AzureRM (3.5.0) module doesn’t output status of VM creation (it’ll be corrected in future releases). Use Azure Portal instead.

FAQ

How to run synchronous copy in AzCopy?

Place /SyncCopy parameter to the end of the AzCopy command above. It ensures that the copy operation will get consistent speed. AzCopy performs the synchronous copy by downloading the blobs to copy from the specified source to local memory, and then uploading them to the Blob storage destination. It’s recommended to prepare VM in the source subscription and run AzCopy from there to avoid egress cost

Should I pay for traffic during migration?

If you are moving data within the same region, you don’t have to pay for it. It’s free. Additional costs required only for moving data between different regions.

What’s the maximum speed of data transferring?

It depends on VM and storage types. Basically, for standard accounts it’s up to 60 Mb/s. Premium storage accounts can provide throughput up to 200 Mb/s. In the real world throughput can vary widely.
Example: about 1 Tb were migrated in 14 hours between subscriptions with standard accounts, VMs with Ax size and within the same region