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Send-TeamsMessage.ps1
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Send-TeamsMessage.ps1
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<#
.Synopsis
Script to send SCOM Alert to Teams using noticiation channel in scom.
.DESCRIPTION
Script to send SCOM Alert to Teams using noticiation channel in scom. Supports retry. By default retries 5 times every 5 seconds.
.EXAMPLE
PS C:\scripts> .\Send-TeamsMessage.ps1 -Alert 'Name of Test Alert' -Source 'C:' -Priority '5' -Severity '3' -Description 'Test issue occured on server. bla bla bla bla.' -TimeRaisedLocal (Get-Date -Format G).ToString() -Uri 'lşskjdkfsdjflkjdsf' -LogFilePath c:\temp\trytest.txt -Verbose
VERBOSE: [10/14/2020 1:53:33 PM][Send-TeamsMessage.ps1] Retry number 1: Couldt not send Alert 'Name of Test Alert' from 'C:'. Sleeping 5 seconds. Error: The remote name could not be resolved: 'lşskjdkfsdjflkjdsf'
VERBOSE: [10/14/2020 1:53:39 PM][Send-TeamsMessage.ps1] Retry number 2: Couldt not send Alert 'Name of Test Alert' from 'C:'. Sleeping 5 seconds. Error: The remote name could not be resolved: 'lşskjdkfsdjflkjdsf'
VERBOSE: [10/14/2020 1:53:45 PM][Send-TeamsMessage.ps1] Retry number 3: Couldt not send Alert 'Name of Test Alert' from 'C:'. Sleeping 5 seconds. Error: The remote name could not be resolved: 'lşskjdkfsdjflkjdsf'
VERBOSE: [10/14/2020 1:53:51 PM][Send-TeamsMessage.ps1] Retry number 4: Couldt not send Alert 'Name of Test Alert' from 'C:'. Sleeping 5 seconds. Error: The remote name could not be resolved: 'lşskjdkfsdjflkjdsf'
VERBOSE: [10/14/2020 1:53:57 PM][Send-TeamsMessage.ps1] Retry number 5: Couldt not send Alert 'Name of Test Alert' from 'C:'. Sleeping 5 seconds. Error: The remote name could not be resolved: 'lşskjdkfsdjflkjdsf'
#>
[CmdletBinding()]
Param(
[string]$Alert,
[string]$Source,
[string]$Description,
[int32]$Severity,
[int32]$Priority,
[string]$TimeRaisedLocal,
[int32]$RetryCount = 5,
[int32]$SleepSeconds = 5,
[string]$LogFilePath = 'c:\Notifications\NotificationLog.txt',
[string]$Uri = 'https://outlook.office.com/webhook/xxxx/IncomingWebhook/xxx/xxxx'
)
Function Write-Log {
[CmdletBinding()]
Param(
[Parameter(Mandatory = $True)]
[string]$Message,
[string]$LogFilePath = "$env:TEMP"
)
$LogFilePath = if ($Script:LogFilePath) {$Script:LogFilePath}
$Log = "[$(Get-Date -Format G)][$((Get-PSCallStack)[1].Command)] $Message"
Write-verbose $Log
$Log | Out-File -FilePath $LogFilePath -Append -Force
}
$SeverityHash = @{
0 = 'Information'
1 = 'Warning'
2 = 'Critical'
}
$PriorityHash = @{
0 = 'Low'
1 = 'Medium'
2 = 'High'
}
$ThemeColor = switch ($SeverityHash.$Severity)
{
'Critical' {'D70000'}
'Warning' {'FFCC00'}
'Information' {'9C9C9C'}
Default {'D70000'}
}
$Text = @"
**Source:** $Source<br/>
**Priority:** $($PriorityHash.$Priority)<br/>
**Severity:** $($SeverityHash.$severity)<br/>
**Raised Time:** $TimeRaisedLocal<br/>
**Alert Description**: $Description<br/>
"@
$JsonCardHash = [ordered]@{
'@type' = 'MessageCard'
'@context' = 'http://schema.org/extensions'
themecolor = $ThemeColor
title = $Alert
text = $Text
}
$JsonBody = ConvertTo-Json -InputObject $JsonCardHash
$Count = 0
do {
try {
$Count++
Invoke-RestMethod -Method Post -Uri $Uri -Body $JsonBody -ErrorAction Stop -Verbose:$false | Out-Null
$Sucess = $true
$Message = "Successfully sent Alert '$Alert' from '$Source' to teams on try $Count."
}
Catch {
$Message = "Retry number $Count`: Couldt not send Alert '$Alert' from '$Source'. Sleeping $SleepSeconds seconds. Error: $($_.Exception.Message)"
}
Finally {
Write-Log $Message
if (-Not $Sucess) {
Start-Sleep -Seconds $SleepSeconds
}
}
} until ($Sucess -or ($Count -eq $RetryCount))