azure-cli template for azure vm creation with existing vhd file.

az-vm-create--with-existing-vhd.txt

===Prerequisites===

1. Azure Cli (on bash on Ubuntu on Windows OR powershell OR Linux shell OR MacOS)
2. vhd image of previously deployed VM
3. storage account to add vhd.

===Steps===

1. Create Storage account in Azure portal or azure-cli.
Storage account type does not matter. Choose at your needs.

2. Create container named 'vhds' in created storage account.

3. Uploaded prepared vhd image of VM to container named 'vhds'.

4. In azure-cli commandline, type following.
az vm create \
--name <YOUR_VM_NAME> \
--resource-group <RESOURCE_GROUP_TO_DEPLOY_VM_TO> \
--attach-os-disk <URI_OF_VHD_FILE_IN_STORAGE_ACCOUNT> \
--size <YOUR_VM_SIZE> \
--authentication-type <YOUR_VM_AUTHENTICATION_TYPE> \
--admin-username <YOUR_ADMIN_NAME> \
--admin-password <YOUR_ADMIN_PASSWORD> \
--ssh-key-value <YOUR_SSH_PUBLIC_KEY> \
--nsg-rule SSH \
--os-type <YOUR_OS_TYPE> \
--use-unmanaged-disk

ex: (Password authentication, Linux)
az vm create \
--name vm-test \
--resource-group vm-test-rg \
--attach-os-disk http://teststorage.blob.core.windows.net/vhds/osdisk.vhd \
--size Standard_DS1_v2 \
--authentication-type password \
--admin-username admin \
--admin-password Passw0rd! \
--nsg-rule SSH \
--os-type linux \
--use-unmanged-disk

note: 
1) '--name' and '--resource-group' option is REQUIRED.
2) For --size option value, check https://azure.microsoft.com/en-us/pricing/details-virtual-mahines/
3) '--admin-password' option is only used with '--authentication-type' of 'password'.
4) For SSH public key authentication, use '--authentication-type' of 'ssh' and provide key value to option '--ssh-key-value'.
5) '--os-type' should be one of 'linux' and 'windows'.

5. Check azure portal for result. Result will also appear in command line.