TeamCity and Octopus Deploy Tips and Tricks

Setting Version

It is nice to have TeamCity set build number. I tend to use major.minor.build.revision for AssemblyVersion and major.minor.revision.build for AssemblyInformationalVersion (product version). So in AssemblyInfo.cs we have for example:

[assembly: AssemblyVersion("2.2.*")] // AssemblyFileVersionAttribute is not supplied, so the AssemblyVersionAttribute is used for the Win32 file version that is displayed on the Version tab of the Windows file properties dialog.
[assembly: AssemblyInformationalVersion("2.2.1")] // A.k.a. product version

In order to have the build number inserted, create two file content replacer build features with the following configurations:

Path pattern: “**/AssemblyInfoGlobal*.cs”
File encoding: <Auto-detect>
Search for: (^\s*\[\s*assembly\s*:\s*((System\s*\.)?\s*Reflection\s*\.)?\s*AssemblyVersion(Attribute)?\s*\(\s*@?\”)(([0-9\*]+\.)+)[0-9\*]+(\”\s*\)\s*\])
Match case: true
Replace with: $1$5\%build.number%.*$7

Path pattern: “**/AssemblyInfoGlobal*.cs”
File encoding: <Auto-detect>
Search for: (^\s*\[\s*assembly\s*:\s*((System\s*\.)?\s*Reflection\s*\.)?\s*AssemblyInformationalVersion(Attribute)?\s*\(\s*@?\”)(([0-9\*]+\.?)+)(\”\s*\)\s*\])
Match case: true
Replace with: $1$5.\%build.number%$7

Build and Publish Multiple Branches

I usually want some flexibility in what branch to build, and I have found that the following settings work quite well.

To make it possible to build and publish multiple branches, you can have wildcards in the VCS Root Branch specification, e.g.:

+:refs/heads/release/*
+:refs/heads/develop
+:refs/heads/feature/*

The default branch in this case would probably be set to

refs/heads/develop

Now, you probably only want automatic build and publish for certain branches, not all. To have automatic build for just develop, go to the build configuration Triggers setting and set e.g. the following branch filter:

+:<default>

Now, you can click the ellipses next to Run, go to the Changes tab and select the desired  branch to build.

Build Pull Requests

You probably also want to have automatic build (but not publish) of pull requests. This is accomplished by having a separate build configuration for that, with the following VCS Root Branch specification:

+:refs/pull/(*/merge)
-:develop
-:master

This means pull requests are built but not the develop and master branches. (For example, pull request #1 have branch name refs/pull/1/merge.

Deploy a Specific Version

The default behavior of the OctopusDeploy: Create release step is to create a release of the latest version. If you want to build and deploy another version, probably from a release branch, you can do like this:

  1. Create a new VCS Root with default branch set to e.g. refs/heads/release/2.2 and use this in your build configuration.
  2. In General Settings, set Build Number Format to e.g. 2.2.1.%build.counter%.
  3. In your Deploy/create release step, set Release number to %build.number%, and Additional command line arguments to –packageversion=%build.number%. This will make octo.exe use this version as default for every package. You can override that with the package parameter, e.g. –packageversion=%build.number% –package=EntityFramework:1.6.2.

Note: It would be better to read the version from AssemblyInfo.cs rather than hard-configuring it, but I haven’t tried that out yet. It would require some scripting.

NuGet Publish

In a TeamCity NuGet Publish step, instead of specifying packages one by one, you can use:

**\obj\octopacked\*.nupkg

Integration Tests

I prefer to run integration tests as part of deployment rather than build, for two reasons:

  • It takes quite some time to run them, and I don’t like really long builds.
  • To a large extent, integration tests test configuration, so it make sense to run them on the target environment rather than on the build server.

Here are the steps I have used to facilitate integration testing as part of deployment. In the integration test project:

  • Add the OctoPack NuGet package.
  • Add app.config transforms. They must be called <project>.IntegrationTests.dll.<environment>.config, build action should be None and copy to output directory should be Copy if newer.
  • Add a PostDeploy.ps1 script. This could look like the example below. Make sure it has the same properties as the ones in previous step.

In TeamCity:

  • Add the integration project to NuGet publish step, or use wildcard as described above.

In Octopus Deploy:

  • Add a new Deploy a NuGet package step and choose the integration test package.

Example PostDeploy.ps1

# Clean-up
Remove-Item Project.IntegrationTests.dll.*.config

# Run integration tests
choco upgrade visualstudio2015testagents -y

$exePath = "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\MSTest.exe"
$testBinariesFolder = "."
$testBinariesFilter = "*.IntegrationTests.dll"
$scheme = $OctopusParameters['scheme']
$hostname = $OctopusParameters['hostname']
$webAppPath = $scheme + "://" + $hostname 
$webAppPhysicalPath = $OctopusParameters['Octopus.Action[Deploy Web].Output.Package.InstallationDirectoryPath']

# Search for integration test DLLs
$testDlls = ""
(Get-ChildItem -Path $testBinariesFolder -Filter $testBinariesFilter).FullName | ForEach-Object { $testDlls += "/testcontainer:""$_"" " }

# Exclude some categories.
$environment = $OctopusParameters['Octopus.Environment.Name']
if ($environment -match "xxx") { $categories = '/category:"CategoryX"' }
if ($environment -match "yyy") { $categories = '/category:"CategoryY"' }
if ($environment -match "zzz") { $categories = '/category:"CategoryZ"' }
if ($categories -eq $null -or $categories -eq "") {
    Write-Error "Unknown environment ""$environment"". Integration tests will not be run." -ErrorAction Continue
    return
}

# Start the test
Write-Output "& ""$exePath"" $testDlls $categories"
Invoke-Expression "& ""$exePath"" $testDlls $categories"

# Check results
if ($LASTEXITCODE -eq 0) {
    Write-Output "All integration tests passed."
} else {
    Write-Error "One or more integration tests failed." -ErrorAction Continue
}

# Upload result file
$testResultFiles = Get-ChildItem -Path .\TestResults -Filter *.trx -ErrorAction SilentlyContinue
if ($testResultFiles -ne $null)
{
	$resultMessage = "Test results available at "
	$testResultFiles | ForEach-Object {
		Move-Item $_.FullName $webAppPhysicalPath
		$resultMessage += "$webAppPath/$($_.Name) "
	}
	Write-Output $resultMessage

	# Allow download of the result
	if ((Get-WebConfiguration -Filter "//staticContent/mimeMap[@fileExtension='.trx']" -PSPath IIS:\) -eq $null)
	{
		Add-WebConfiguration -Filter "//staticContent" -PSPath IIS:\ -Value @{fileExtension=".trx";mimeType="application/x-test"}
	}
} else {
	Write-Error "Found no test results." -ErrorAction Continue
}

# Always return 0 because we don't want to fail the deployment until integration tests are stable.
exit 0

There are several things to note here.

  • To do…
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s