This powershell script can be used within TeamCity to deploy a Java web app (war file) to a Tomcat installation on a remote Windows Server

deploy-war

<#  
Deployment Script (SingingBush, 9-may-2014)

Usage:

In TeamCity 'Buildstep: Powershell' make sure that script is set to file and 
in 'Failure Conditions' the checkbox is ticked for: 'the build process exit code is not zero'.

YOU MUST ENSURE THAT ALL THE FOLLOWING ARGS ARE USED:

$server		- The hostname for the machine being deployed to.
$path		- The full directory path on the remote server to correct Tomcat webapps folder
$service	- The service name for the application
$war		- The war filename (excluding extension), eg 'mywebapp'
$buildType	- The type of build to get from the TeamCity repo, eg: 'MyWebapp_Main';
$environment	- [Optional] Handy when more than one of same application in one IIS, suggested values are:
				'-live', '-uat' or '-systest'. It will be appended to the war file name.
#>

param (
	[string]$server = $(throw "-server is required."),
	[string]$path = $(throw "-path is required."),
	[string]$service = $(throw "-service is required"),
	[string]$war = $(throw "-war is required"),
	[string]$buildType = $(throw "-buildType is required")
 )

$teamCity = "http://REMOTE_HOSTNAME/teamcity/repository/download";

net use \\$remoteServer /user:USERNAME_HERE PASSWORD_HERE

try {
	Write-Host ("Attempting to get the '{0}' service on {1}" -f $service, $remoteServer)
	$svc = get-service -computerName $remoteServer -name $service
	Write-Host ("Service is currently {0}" -f $svc.Status)
	if ($svc.Status -eq "Running") {
		Write-Host ("Stopping {0} service" -f $service)
		$svc.Stop()
		
		# wait for 10 seconds
		$svc.WaitForStatus('Stopped','00:00:10')
		
		# if still not stopped, then error
		if ($svc.Status -ne 'Stopped') {
		    Write-Host 'Service not stopped, exiting'
		    exit 1
		}
	}
} Catch [System.Management.Automation.MethodInvocationException] {
	Write-Host ("There was an Exception while trying to stop the {0} service - Exiting with ERROR 1" -f $service)
	exit 1
}

$storageDir = $pwd
$url = "$teamCity/$buildType/.lastFinished/$war.war?guest=1"
$file = "$storageDir\$war$environment.war"

try {
	$webclient = New-Object System.Net.WebClient
	Write-Host ("Downloading {0}.war from TeamCity" -f $war)
	$webclient.DownloadFile($url,$file)
} Catch [System.Net.WebException] {
	Write-Host ("There was an Exception while trying to download {0}  - Exiting with ERROR 1" -f $url)
	exit 1
}

try {
	Write-Host "removing old war file..."
	Remove-Item \\$remoteServer\$remotePath\$war -recurse
	Remove-Item \\$remoteServer\$remotePath\$war.war
} catch [System.Management.Automation.ItemNotFoundException] {
	Write-Host ("Unable to remove '{0}', Item Not Found!" -f $remotePath)
	# will continue rather than exit here as it's no problem if there is nothing to delete
}

try {
	Write-Host ("Copying new {0}.war to application server..." -f $war)
	copy-item -Path $file -Destination \\$remoteServer\$remotePath
} Catch [System.IO.DirectoryNotFoundException] {
	Write-Host ("The destination directory '{0}' was not found!  Exiting with ERROR 1" -f $remotePath)
	exit 1
}

try {
	$svc = get-service -computerName $remoteServer -name $service
	Write-Host ("Service is currently {0}, calling start()" -f $svc.Status)
	$svc.Start()
} Catch [System.Management.Automation.MethodInvocationException] {
	Write-Host ("There was an Exception while trying to start the {0} service - Exiting with ERROR 1" -f $service)
	exit 1
}

Write-Host "Deployment Completed Successfully"
exit 0