用powershell脚本实现web站点自动部署 Anny

用户要求将原来的多个文件合并成一个ps1文件实现web站点的自动部署，在合并过程中遇到两个问题：

1. powershell 不区分大小写，所以在变量命名时一定要注意；

2. 在合并中遇到这个异常：

Exception setting "Protocol": "The configuration object is read only, because it has been committed by a call to ServerManager.CommitChanges(). If write access is required, use ServerManager to get a new reference."
At C:\v-zhdu\code\WebsiteDeployment\Website_Deployment.ps1:76 char:11
+                 $bind. <<<< Protocol = $Binding.Protocol
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : PropertyAssignmentException

根据提示，查看脚本，发现对站点的设置提交变化后，需要重新获取新的引用才可以获得写的权限，具体参见下面的script。

Website_Deployment.ps1:

#Get the path where the script is running
$scriptDir = Split-Path (Resolve-Path $myInvocation.MyCommand.Path)
write-host "Script Location: " $scriptDir -foregroundColor Green

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Web.Administration")
$iis = New-Object Microsoft.Web.Administration.ServerManager

#Load the config file
[xml]$Config = get-content ($scriptDir + "\Config.xml")
$AppPools = $Config.Script

##############################RemoveSitePool-begin
foreach ($AppPool in $AppPools.ApplicationPool)
{ 
 foreach($Site in $AppPool.Site)
 {
         
      #RemoveSite $Site.Name
  $website = $iis.Sites[$Site.Name]
  if($website -ne $null)
  {
   $website.Delete()
   $iis.CommitChanges()
       Write-Host "Site Removed" -foregroundColor Green
  }          
        }
 
 #RemoveAppPool
 $pool = $iis.ApplicationPools[$AppPool.Name]
 if($pool -ne $null)
 {
  $pool.Delete()
  $iis.CommitChanges()
  Write-Host "App Pool Removed" -foregroundColor Green
 } 
}
##############################RemoveSitePool-end

##############################CreateSitePool-begin
foreach ($AppPool in $AppPools.ApplicationPool)
{
 #CreateAppPool
 $iis.ApplicationPools.Add($AppPool.Name)
 $pool = $iis.ApplicationPools[$AppPool.Name]
 $pool.ProcessModel.UserName = $AppPool.UserName
 $pool.ProcessModel.Password = $AppPool.Password
 $iis.CommitChanges()
 Write-Host "App Pool Created" -foregroundColor Green
 
 foreach($Site in $AppPool.Site)
 {
         
      #CreateSite
 
  $website = $iis.Sites.CreateElement()
  $website.ID = $Site.ID
  $website.Name = $Site.Name
  $website.Applications.Add("/", $Site.PhysicalPath)
  $website.Applications["/"].ApplicationPoolName = $AppPool.Name
  $iis.Sites.Add($website)
  #$iis.CommitChanges()         #should be comment out, or will throw exception like 2#
      Write-Host "Site Created" -foregroundColor Green   
   
      foreach($Binding in $Site.Binding)
      {                 
             #CreateBindingOnSite
    $bind = $website.Bindings.CreateElement()
    $bind.Protocol = $Binding.Protocol
    $bind.BindingInformation = "*:" + $Binding.Port + ":" + $Binding.HostName
    $website.Bindings.Add($bind)
    $iis.CommitChanges()
             Write-Host "Binding Created" -foregroundColor Green
                 
      }
       
      foreach($Folder in $Site.Folder)
      {
                 if ($Folder -ne $null)
                 {
           #Create the folder if it does not exist
    $objFSO = New-Object -ComObject Scripting.FileSystemObject    
    if($objFSO.FileExists($Folder -eq $FALSE))
    {
     Mkdir ($Folder.Name)
    }
            
           foreach($Permission in $Folder.Permission)
           {
                          if ($Permission -ne $null)
                          {
                 #Set the ACL permission on the folder
                 Cacls $folder.Name “/E” “/G” “$($permission.User):$($Permission.Capability)”
                          }
           }
           Write-Host "Completed Permissions Configuration for "  $Folder.name -foregroundColor Green
                 }

      }
      Write-Host "Completed Folder Configuration for all folders" -foregroundColor Green         
 
}

}

##############################CreateSitePool-end