PowerShell script to deploy package to Azure Worker Role by using teamcity CI build server

teamcity_azure_worker_role.ps1

#Modified and simplified version of https://www.windowsazure.com/en-us/develop/net/common-tasks/continuous-delivery/
#Modified and treat error-terminating of http://weblogs.asp.net/srkirkland/ci-deployment-of-azure-web-roles-using-teamcity
$ErrorActionPreference = "Stop"
$subscription = "[Your Subscription Name]"
$service = "[Your Azure Service Name]"
$slot = "staging" #staging or production
$package = "[ProjectName]\bin\[BuildConfigName]\app.publish\[ProjectName].cspkg"
$configuration = "[ProjectName]\bin\[BuildConfigName]\app.publish\ServiceConfiguration.Cloud.cscfg"
$timeStampFormat = "g"
$deploymentLabel = "ContinuousDeploy to $service v%build.number%"

Write-Output "Running Azure Imports"
Import-AzurePublishSettingsFile "C:\TeamCity\[Your PublishSettings Filename].publishsettings"

function Publish(){
 Write-Output "$(Get-Date -f $timeStampFormat) - Publising Azure Deployment..."
 $deployment = Get-AzureDeployment -ServiceName $service -Slot $slot -ErrorVariable a -ErrorAction silentlycontinue 

 if ($a[0] -ne $null) {
    Write-Output "$(Get-Date -f $timeStampFormat) - No deployment is detected. Creating a new deployment. "
 }
 
 if ($deployment.Name -ne $null) {
    #Update deployment inplace (usually faster, cheaper, won't destroy VIP)
    Write-Output "$(Get-Date -f $timeStampFormat) - Deployment exists in $service.  Upgrading deployment."
    UpgradeDeployment
 } else {
    CreateNewDeployment
 }
}

function CreateNewDeployment()
{
    write-progress -id 3 -activity "Creating New Deployment" -Status "In progress"
    Write-Output "$(Get-Date -f $timeStampFormat) - Creating New Deployment: In progress"

    $opstat = New-AzureDeployment -Slot $slot -Package $package -Configuration $configuration -label $deploymentLabel -ServiceName $service

    $completeDeployment = Get-AzureDeployment -ServiceName $service -Slot $slot
    $completeDeploymentID = $completeDeployment.deploymentid

    write-progress -id 3 -activity "Creating New Deployment" -completed -Status "Complete"
    Write-Output "$(Get-Date -f $timeStampFormat) - Creating New Deployment: Complete, Deployment ID: $completeDeploymentID"
}

function UpgradeDeployment()
{
    write-progress -id 3 -activity "Upgrading Deployment" -Status "In progress"
    Write-Output "$(Get-Date -f $timeStampFormat) - Upgrading Deployment: In progress"

    # perform Update-Deployment
    $setdeployment = Set-AzureDeployment -Upgrade -Slot $slot -Package $package -Configuration $configuration -label $deploymentLabel -ServiceName $service -Force

    $completeDeployment = Get-AzureDeployment -ServiceName $service -Slot $slot
    $completeDeploymentID = $completeDeployment.deploymentid

    write-progress -id 3 -activity "Upgrading Deployment" -completed -Status "Complete"
    Write-Output "$(Get-Date -f $timeStampFormat) - Upgrading Deployment: Complete, Deployment ID: $completeDeploymentID"
}

#Azure Publish Execution
try{
    Set-AzureSubscription -CurrentStorageAccount [Your Storage Account Name] -SubscriptionName $subscription
    Publish
}catch{
    throw #Rethrow to detect failed build status. Check "an erorr message is logged by build runner" in TeamCity Bulid configuration Failure Conditions menu
    Break
}