Powershell脚本检测Azure账号是否登陆，资源组是否创建，并部署ARM template

前言：本文提供了一个脚本检测，有如下功能：

1. Azure账户是否已经登陆了，如果没登陆，会提示你登陆。
2. 要创建的资源组是否存在，存在的话不再创建，直接部署template，不存在就先创建资源组，再部署template。

## 简单定义变量$ResourceGroupName='myrsg'$Location='china east'## 检测是否已经登陆azure，如果没登陆，会跳转提示登陆。Try{Get-AzureRmContext -ErrorAction Continue}Catch [System.Management.Automation.PSInvalidOperationException]{Login-AzureRmAccount -EnvironmentName Azurechinacloud}## define the deploy function，指定部署文件的路径。可以是远端文件，也可以是本地文件。Function Deployment([string]$deployPath,[string]$deployParameterPath){    Write-Output "test the deployment"    test-AzureRmResourceGroupDeployment -ResourceGroupName $ResourceGroupName `      -TemplateFile $deployPath `      -TemplateParameterFile $deployParameterPath    Write-Output "deploy begin"    New-AzureRmResourceGroupDeployment -ResourceGroupName $ResourceGroupName `      -TemplateFile $deployPath `      -TemplateParameterFile $deployParameterPath}## 检测资源组是否存在，逻辑行为可定制。## reousrceGroup的部署是增量的形式，组下的已有资源不再被重新部署。$resourceGroup = Get-AzureRmResourceGroup -Name $ResourceGroupName -ErrorAction SilentlyContinueif ( -not $ResourceGroup ) {    Write-Output "Could not find resource group '$ResourceGroupName' - will create it"    Write-Output "Creating resource group '$ResourceGroupName' in location '$Location'"    New-AzureRmResourceGroup -Name $resourceGroupName -Location $Location    Deployment .\Desktop\template\template\azuredeploy.json .\Desktop\template\template\azuredeploy.parameters.json}else {    Write-Output "Using existing resource group '$ResourceGroupName'"     Deployment .\Desktop\template\template\azuredeploy.json .\Desktop\template\template\azuredeploy.parameters.json}