PowerShell 发送美观的Vsphere DataStore警报
豆子今天登陆Vsphere VCenter的时候，无意中发现有DataStore的警报信息，个别DataStore的使用空间超过90%了，需要清空一下SAN Volume的Snapshot。这个是运维常见的问题，那么顺便就用PowerShell写个脚本，定期检查发送邮件好了。
脚本本身很容易，但是我想让他尽量的美观一些。
之前我写过一个博文可以自定义sytle的样式 http://beanxyz.blog.51cto.com/5570417/1786712， 不过现在看起来有些麻烦，还是觉得找找如果有比较好看的现成的css文件可以直接调用就好了。
上网搜了搜 table有哪些现成的css模板，随便找了一个https://codepen.io/anon/pen/vJmLWL，看着还成
下载他的css下来
下载的css文件，保存在C:\tmp 目录
@import url(https://fonts.googleapis.com/css?family=Roboto:400,500,700,300,100);
body {
background-color: #3e94ec;
font-family: "Roboto", helvetica, arial, sans-serif;
font-size: 16px;
font-weight: 400;
text-rendering: optimizeLegibility;
}
div.table-title {
display: block;
margin: auto;
max-width: 600px;
padding:5px;
width: 100%;
}
.table-title h3 {
color: #fafafa;
font-size: 30px;
font-weight: 400;
font-style:normal;
font-family: "Roboto", helvetica, arial, sans-serif;
text-shadow: -1px -1px 1px rgba(0, 0, 0, 0.1);
text-transform:uppercase;
}
/*** Table Styles **/
.table-fill {
background: white;
border-radius:3px;
border-collapse: collapse;
height: 200px;
margin: auto;
max-width: 600px;
padding:5px;
width: 100%;
box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
animation: float 5s infinite;
}
th {
color:#D5DDE5;;
background:#1b1e24;
border-bottom:4px solid #9ea7af;
border-right: 1px solid #343a45;
font-size:23px;
font-weight: 100;
padding:24px;
text-align:left;
text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
vertical-align:middle;
}
th:first-child {
border-top-left-radius:3px;
}
th:last-child {
border-top-right-radius:3px;
border-right:none;
}
tr {
border-top: 1px solid #C1C3D1;
border-bottom-: 1px solid #C1C3D1;
color:#666B85;
font-size:16px;
font-weight:normal;
text-shadow: 0 1px 1px rgba(256, 256, 256, 0.1);
}
tr:hover td {
background:#4E5066;
color:#FFFFFF;
border-top: 1px solid #22262e;
border-bottom: 1px solid #22262e;
}
tr:first-child {
border-top:none;
}
tr:last-child {
border-bottom:none;
}
tr:nth-child(odd) td {
background:#EBEBEB;
}
tr:nth-child(odd):hover td {
background:#4E5066;
}
tr:last-child td:first-child {
border-bottom-left-radius:3px;
}
tr:last-child td:last-child {
border-bottom-right-radius:3px;
}
td {
background:#FFFFFF;
padding:20px;
text-align:left;
vertical-align:middle;
font-weight:300;
font-size:18px;
text-shadow: -1px -1px 1px rgba(0, 0, 0, 0.1);
border-right: 1px solid #C1C3D1;
}
td:last-child {
border-right: 0px;
}
th.text-left {
text-align: left;
}
th.text-center {
text-align: center;
}
th.text-right {
text-align: right;
}
td.text-left {
text-align: left;
}
td.text-center {
text-align: center;
}
td.text-right {
text-align: right;
}
下面是正式的脚本，Set-CellColor也是别人写好的现成的，我直接拿来用了，主要功能是根据条件来更改html文件table的格子的颜色，比如某个值大于警报线就标记为红色等等。脚本中间加载Vsphere SnapIn，查询datastore的状态，最后把结果转换为html，通过Office365发送邮件出去
#修改颜色块的设定
Function Set-CellColor
{
[CmdletBinding()]
Param (
[Parameter(Mandatory,Position=0)]
[string]$Property,
[Parameter(Mandatory,Position=1)]
[string]$Color,
[Parameter(Mandatory,ValueFromPipeline)]
[Object[]]$InputObject,
[Parameter(Mandatory)]
[string]$Filter,
[switch]$Row
)
Begin {
Write-Verbose "$(Get-Date): Function Set-CellColor begins"
If ($Filter)
{ If ($Filter.ToUpper().IndexOf($Property.ToUpper()) -ge 0)
{ $Filter = $Filter.ToUpper().Replace($Property.ToUpper(),"`$Value")
Try {
[scriptblock]$Filter = [scriptblock]::Create($Filter)
}
Catch {
Write-Warning "$(Get-Date): ""$Filter"" caused an error, stopping script!"
Write-Warning $Error[0]
Exit
}
}
Else
{ Write-Warning "Could not locate $Property in the Filter, which is required. Filter: $Filter"
Exit
}
}
}
Process {
ForEach ($Line in $InputObject)
{ If ($Line.IndexOf("<tr><th") -ge 0)
{ Write-Verbose "$(Get-Date): Processing headers..."
$Search = $Line | Select-String -Pattern '<th ?[a-z\-:;"=]*>(.*?)<\/th>' -AllMatches
$Index = 0
ForEach ($Match in $Search.Matches)
{ If ($Match.Groups[1].Value -eq $Property)
{ Break
}
$Index ++
}
If ($Index -eq $Search.Matches.Count)
{ Write-Warning "$(Get-Date): Unable to locate property: $Property in table header"
Exit
}
Write-Verbose "$(Get-Date): $Property column found at index: $Index"
}
If ($Line -match "<tr( style=""background-color:.+?"")?><td")
{ $Search = $Line | Select-String -Pattern '<td ?[a-z\-:;"=]*>(.*?)<\/td>' -AllMatches
$Value = $Search.Matches[$Index].Groups[1].Value -as [double]
If (-not $Value)
{ $Value = $Search.Matches[$Index].Groups[1].Value
}
If (Invoke-Command $Filter)
{ If ($Row)
{ Write-Verbose "$(Get-Date): Criteria met! Changing row to $Color..."
If ($Line -match "<tr style=""background-color:(.+?)"">")
{ $Line = $Line -replace "<tr style=""background-color:$($Matches[1])","<tr style=""background-color:$Color"
}
Else
{ $Line = $Line.Replace("<tr>","<tr style=""background-color:$Color"">")
}
}
Else
{ Write-Verbose "$(Get-Date): Criteria met! Changing cell to $Color..."
$Line = $Line.Replace($Search.Matches[$Index].Value,"<td style=""background-color:$Color"">$Value</td>")
}
}
}
Write-Output $Line
}
}
End {
Write-Verbose "$(Get-Date): Function Set-CellColor completed"
}
}
#加载Vsphere
function Load-PowerCLI
{
#pls download and install module first
Add-PSSnapin VMware.VimAutomation.Core
# Add-PSSnapin VMware.VimAutomation.Vds
# Add-PSSnapin VMware.VumAutomation
. "C:\Program Files (x86)\VMware\Infrastructure\vSphere PowerCLI\Scripts\Initialize-PowerCLIEnvironment.ps1"
}
#判断是否已经加载SnapIn
$snapins=Get-PSSnapin
if($snapins.name -eq "VMware.VimAutomation.Core")
{
Write-Host "Vsphere SnapIn is loaded" -ForegroundColor Cyan
}
else{
Load-PowerCLI
}
#绑定VCenter
Connect-VIServer sydvcs2012
#获取DataStore的数据
$report = @()
foreach($cluster in Get-Cluster){
Get-VMHost -Location $cluster | Get-Datastore | %{
$info = "" | select DataCenter, Cluster, Name, Capacity, Free, 'UsagePercentage(%)'
$info.Datacenter = $_.Datacenter
$info.Cluster = $cluster.Name
$info.Name = $_.Name
$info.Capacity = [math]::Round($_.capacityMB/1024,2)
$info.Free="{0:N1}" -f $_.FreeSpaceGB
$info.'UsagePercentage(%)'=[math]::round(100*($_.CapacityGB-$_.FreeSpaceGB)/$_.CapacityGB,2)
$report += $info
}
}
#通过Office365发送邮件
$from = "aaa@abc.com"
$to = "bean@abc.com"
$smtp = "smtp.office365.com"
$sub = "DataStore list"
$secpasswd = ConvertTo-SecureString "Password" -AsPlainText -Force
$mycreds = New-Object System.Management.Automation.PSCredential ($from, $secpasswd)
#指定css模板转换数据为html格式，根据条件指定cell的颜色
$htmlbody=$report| ConvertTo-Html -Body "<H1> DataStore </H1>" -CssUri C:\tmp\table.css | Set-CellColor -Property "UsagePercentage(%)" -Color red -Filter "UsagePercentage(%) -gt 80"
#发送邮件
Send-MailMessage -To $to -From $from -Subject $sub -Body ($htmlbody|Out-String) -Credential $mycreds -SmtpServer $smtp -DeliveryNotificationOption Never -BodyAsHtml -UseSsl -port 587
我收到的邮件效果
最后添加脚本到task scheduler里面让他每日自动运行就行了
