publish.ps1

Param(  $serviceName = "",
        $storageAccountName = "",
        $packageLocation = "",
        $cloudConfigLocation = "",
        $environment = "Staging",
        $deploymentLabel = "$servicename-$deploymentId",
        $timeStampFormat = "g",
        $alwaysDeleteExistingDeployments = 1,
        $enableDeploymentUpgrade = 1,
        $selectedsubscription = "default",
        $subscriptionDataFile = "",
        $deploymentId = ""
     )


function Publish()
{
    $deployment = Get-AzureDeployment -ServiceName $serviceName -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. "
    }
    #check for existing deployment and then either upgrade, delete + deploy, or cancel according to $alwaysDeleteExistingDeployments and $enableDeploymentUpgrade boolean variables
    if ($deployment.Name -ne $null)
    {
        switch ($alwaysDeleteExistingDeployments)
        {
            1
            {
                switch ($enableDeploymentUpgrade)
                {
                    1  #Update deployment inplace (usually faster, cheaper, won't destroy VIP)
                    {
                        Write-Output "$(Get-Date -f $timeStampFormat) - Deployment exists in $servicename.  Upgrading deployment."
                        UpgradeDeployment
                    }
                    0  #Delete then create new deployment
                    {
                        Write-Output "$(Get-Date -f $timeStampFormat) - Deployment exists in $servicename.  Deleting deployment."
                        DeleteDeployment
                        CreateNewDeployment

                    }
                } # switch ($enableDeploymentUpgrade)
            }
            0
            {
                Write-Output "$(Get-Date -f $timeStampFormat) - ERROR: Deployment exists in $servicename.  Script execution cancelled."
                exit
            }
        } #switch ($alwaysDeleteExistingDeployments)
    } 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 $packageLocation -Configuration $cloudConfigLocation -label $deploymentLabel -ServiceName $serviceName -ErrorAction Stop

    $completeDeployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot -ErrorAction Stop
    $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"

    StartInstances
}

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 $packageLocation -Configuration $cloudConfigLocation -label $deploymentLabel -ServiceName $serviceName -Force -ErrorAction Stop

    $completeDeployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot -ErrorAction Stop
    $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"
}

function DeleteDeployment()
{

    write-progress -id 2 -activity "Deleting Deployment" -Status "In progress"
    Write-Output "$(Get-Date -f $timeStampFormat) - Deleting Deployment: In progress"

    #WARNING - always deletes with force
    $removeDeployment = Remove-AzureDeployment -Slot $slot -ServiceName $serviceName -Force -ErrorAction Stop

    write-progress -id 2 -activity "Deleting Deployment: Complete" -completed -Status $removeDeployment
    Write-Output "$(Get-Date -f $timeStampFormat) - Deleting Deployment: Complete"

}

function StartInstances()
{
    write-progress -id 4 -activity "Starting Instances" -status "In progress"
    Write-Output "$(Get-Date -f $timeStampFormat) - Starting Instances: In progress"

    $deployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot -ErrorAction Stop
    $runstatus = $deployment.Status

    if ($runstatus -ne 'Running')
    {
        $run = Set-AzureDeployment -Slot $slot -ServiceName $serviceName -Status Running -ErrorAction Stop
    }
    $deployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot
    $oldStatusStr = @("") * $deployment.RoleInstanceList.Count

    while (-not(AllInstancesRunning($deployment.RoleInstanceList)))
    {
        $i = 1
        foreach ($roleInstance in $deployment.RoleInstanceList)
        {
            $instanceName = $roleInstance.InstanceName
            $instanceStatus = $roleInstance.InstanceStatus

            if ($oldStatusStr[$i - 1] -ne $roleInstance.InstanceStatus)
            {
                $oldStatusStr[$i - 1] = $roleInstance.InstanceStatus
                Write-Output "$(Get-Date -f $timeStampFormat) - Starting Instance '$instanceName': $instanceStatus"
            }

            write-progress -id (4 + $i) -activity "Starting Instance '$instanceName'" -status "$instanceStatus"
            $i = $i + 1
        }

        sleep -Seconds 10

        $deployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot -ErrorAction Stop
    }

    $i = 1
    foreach ($roleInstance in $deployment.RoleInstanceList)
    {
        $instanceName = $roleInstance.InstanceName
        $instanceStatus = $roleInstance.InstanceStatus

        if ($oldStatusStr[$i - 1] -ne $roleInstance.InstanceStatus)
        {
            $oldStatusStr[$i - 1] = $roleInstance.InstanceStatus
            Write-Output "$(Get-Date -f $timeStampFormat) - Starting Instance '$instanceName': $instanceStatus"
        }

        $i = $i + 1
    }

    $deployment = Get-AzureDeployment -ServiceName $serviceName -Slot $slot -ErrorAction Stop
    $opstat = $deployment.Status

    write-progress -id 4 -activity "Starting Instances" -completed -status $opstat
    Write-Output "$(Get-Date -f $timeStampFormat) - Starting Instances: $opstat"
}

function AllInstancesRunning($roleInstanceList)
{
    foreach ($roleInstance in $roleInstanceList)
    {
        if ($roleInstance.InstanceStatus -ne "ReadyRole")
        {
            return $false
        }
    }

    return $true
}

#configure powershell with Azure 1.7 modules
Import-Module Azure -ErrorAction Stop

#configure powershell with publishsettings for your subscription
$pubsettings = $subscriptionDataFile
Import-AzurePublishSettingsFile $pubsettings -ErrorAction Stop
Set-AzureSubscription -CurrentStorageAccountName $storageAccountName -SubscriptionName $selectedsubscription -ErrorAction Stop
Select-AzureSubscription $selectedsubscription -ErrorAction Stop

#set remaining environment variables for Azure cmdlets
$subscription = Get-AzureSubscription $selectedsubscription -ErrorAction Stop
$subscriptionname = $subscription.subscriptionname
$subscriptionid = $subscription.subscriptionid
$slot = $environment

#main driver - publish & write progress to activity log
Write-Output "$(Get-Date -f $timeStampFormat) - Azure Cloud Service deploy script started."
Write-Output "$(Get-Date -f $timeStampFormat) - Preparing deployment of $deploymentLabel for $subscriptionname with Subscription ID $subscriptionid."

Start-Sleep -s 10

Publish

Start-Sleep -s 10

$deployment = Get-AzureDeployment -slot $slot -serviceName $servicename -ErrorAction Stop
$deploymentUrl = $deployment.Url

Write-Output "$(Get-Date -f $timeStampFormat) - Created Cloud Service with URL $deploymentUrl."
Write-Output "$(Get-Date -f $timeStampFormat) - Azure Cloud Service deploy script finished."