Powershell to deploy Azure WebJob (can/should be used in Azure DevOps)

deploy.ps1

# configurations
$workingDirectory = "$(System.DefaultWorkingDirectory)"
$sourceArtifact = "ZIP_FILE_THAT_HAS_YOUR_AAPLICATION_(PRODUCED_BY_BUILD)"
$entryPointDll = "FILE_THAT_HAS_STATIC_VOID_MAIN.dll"
$webJobName = "THE_NAME_OF_THE_WEBJOB"
$jobType = "continuous"
$appName = "THE_NAME_OF_AZURE_WEB_APP_THAT_WILL_HOST_JOB"
$resourceGroupName = "GROUP_NAME"

Write-Host "Validating artifact file"
$zippedArtifact = Get-ChildItem -Path $workingDirectory -Filter $sourceArtifact -Recurse
if ($null -eq $zippedArtifact) { throw [System.IO.FileNotFoundException] "No artifacts were found" }
if ($zippedArtifact -is [array]) { throw [System.ArgumentException] "More than one artifact was found" }

Write-Host "Adding startup script to artifact"
$artifact = "$($workingDirectory)/$($zippedArtifact.Name)"
Copy-Item $zippedArtifact.FullName -Destination $artifact
"dotnet $entryPointDll" | Out-File "$workingDirectory/run.cmd" -Encoding ASCII
Compress-Archive -Path "$workingDirectory/run.cmd" -Update -DestinationPath $artifact

Write-Host "Retreiving publishing credentials"
$app = Get-AzWebApp -ResourceGroupName $resourceGroupName -Name $appName
$publishingCredentials = Invoke-AzResourceAction `
    -ResourceGroupName $app.ResourceGroup `
    -ResourceType "Microsoft.Web/sites/config" `
    -ResourceName "$($app.Name)/publishingcredentials" `
    -Action list `
    -Force
$user = $publishingCredentials.Properties.PublishingUserName
$pass = $publishingCredentials.Properties.PublishingPassword
$creds = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("${user}:${pass}")))

# PUT file
$endpoint = "https://$($appName).scm.azurewebsites.net/api/$($jobType)webjobs/$($webJobName)"
Write-Host "Uploading file to $endpoint"
try {
    Invoke-RestMethod `
        -Uri $endpoint `
        -ContentType "application/zip" `
        -Method "PUT" `
        -Headers @{ 
            "Authorization"       = "Basic $creds" 
            "Content-Disposition" = "attachement; filename=run.cmd" 
        } `
        -UserAgent "PowerShell $($PSVersionTable.PSVersion.ToString())" `
        -InFile $artifact
        
    Write-Host "Successfully uploaded file"
}
catch {
    Write-Error "Failed to PUT a file with status $($_.Exception.Response.StatusCode.value__): $($_.ErrorDetails.Message)"
    throw [System.InvalidOperationException] "Failed to deploy file"
}

Good job it save me some time to make new script but two things:

1. For me Rest-Method do now work because it is throwing Parameter name: offset Value out of range. I solved it changing to Invoke- WebRequest.
2. It is worth to check first how our uri looks like by creating webjob from the portal and check url in Network section in PUT operation.