Re-indexing source in TFS “15” preview

If you installed TFS “15” preview you should give a try to code search, because it is surely one of the coolest feature introduced in this new release.

If for some reason the indexing went wrong, or code is not indexed, you can try reindexing using some powershell scripts that are described in this post.

Happy TFS.

Use different Excel TFS / VSTS Addin at the same time

If you are a consultant, it is quite common that you work with various version of TFS Server at the same time. I have my personal account on VSTS, always updated to the latest version, but I have also customer that still uses TFS 2012 or TFS 2010.

Microsoft test newer version of TFS against lots of applications to be sure that newer versions of TFS do not break usage of existing tools. This means that usually you can upgrade your TFS without worrying that your VS 2010 or Visual Basic 6 stops working. You need to be aware that the opposite is not true. This imply that newer version of Visual Studio could not work well with older version of TFS. This decision is done because Microsoft is encouraging people to keep their TFS installation up to date, and it would be a nightmare to always guarantee that newer tools would be able to communicate with the older service API.

To minimize compatibility problems, you should keep your TFS on-premise updated to the latest version.

Tool as Visual Studio are usually not a problem, you can keep as many VS version you want side by side, so if you still use TFS2012 you can still use VS 2012 without any problem. But you can have problems with other tools.

Office TFS addin is installed automatically with Visual Studio Team Explorer or with any version of Visual Studio. This means that whenever you update your VS or you installa new VS version the Office addin is also updated.

Starting from Visual Studio 2015 there is no Team Explorer anymore, if you want to install only the Office addin you can use the standalone installer following links on this post from Brian Harry.

In Italian Visual Studio forum there is a question where a user experienced problem in exporting Work Item Query result to Excel after upgrading to Visual Studio 2015 Update 3. He is able to connect Excel to VSTS, but the addin does not work anymore with on-premise TFS 2012. This situation prove that the addin is working correctly with latest TFS version, but it does not support anymore older TFS version.

The solution to this problem is simple, because you can choose in Excel the addin version you want to use. You just need to go to Excel Settings, then choose Add-ins (1) then manage Com Add-ins (2) and finally press the Go button.

Figure 1: Managing Excel addins from settings pane.

If you scroll down the addin list, you should see several version of the addin for TFS, one for each version of Visual Studio you have installed. In my machine I have VS2012, VS2013 and VS2015 so I have three distinct version of the addin.

Figure 2: Multiple TFS Addin installed if you have multiple version of Team Explorer.

You can understand the version of the addin simply looking at the location, but the cool part is that you can enable more than one addin at the very same time. As a result you have multiple Team ribbon tab in your Excel as shown in Figure 3.

Figure 3: Multiple TFS Addin enabled at the very same time

I need to admit that this is not really a nice situation to have, because you are confused and there is no clear clue to which version of the add-in each tab is referring to, but at least you can use both of them at the very same time. If you prefer you can simply enable an old version (say 2012 version) to make sure that it works with your main TFS instance. Usually if you enable an older version it should be capable of working with newer instance of TFS.

I’ve not tested this technique thoroughly but it should work without problem.

Gian Maria.

Impressions on installing TFS “15” Preview

Microsoft released a preview of the new version of Team Foundation Server, codename TFS “15” and as usual I immediately downloaded and installed on some of my test server. I’m not going to show you full steps of installation or upgrade, because installing TFS is now a Next/Next/Next experience, but I want to highlight a couple of really interesting aspect of the new installer.

Support to Pre-Production environment

When it is time to upgrade your TFS production server, it is always a good practice to perform the upgrade in a pre-production environment, to avoid having surprises upgrading production instance. Traditionally this is a not so immediate task, because you need to backup and restore database to a test server, then run some command line instructions to change the id of the server in db and then perform the upgrade.

I’ve done a post in the past on how to create a safe clone of your TFS Environment and I suggest you to have a read of that post, but with the new version of TFS installer, when you choose the upgrade path, you have this new screen


Figure 1: You can choose to create a pre-production test directly from Wizard

This is a really big improvement, because now you can simply backup and restore your databases on a new server, run the wizard, choose to do a pre-production Upgrade Testing and you have a clone of you server upgraded to the new version where you can do all of your tests to verify the upgrade process.

Thanks to Pre-Production Upgrade Testing option, creating a test clone of your server where to perform the upgrade is a breeze

This option is not only useful for upgrades, but allows you to quickly create a clone of your TFS to do whatever experiment you want to do with real Production data, without harming your production server.

Great work Microsoft!!

Code search and ElasticSearch

Another interesting wizard screen is the one dedicated to installing code Search capabilities.


Figure 2: Code search installing screen

Code search was introduced in VSTS lots of time ago, but now is available even on TFS installation. It uses ElasticSearch under the hood, but the installer takes care of everything for you. From Figure 2 you can see that you only need to specify a folder where to store the index, and choose if you want to enable code search for every project collection and the game is done.

Sadly enough, you are not allowed to use an exising installation of ElasticSearch, here is the error you got if you already have ES installed on the machine.


Figure 3: You cannot re-use an existing ES installation

You should uninstall every installation of ES you have if your machine before installing code search capabilities. Since ES depends on Java, if you do not have Java JRE or JDK installed on the machine the wizard gives you an error during the verification process.


Figure 4: An error is present if your machine has no Java installed

You can check the box where you accept the Oracle Binary Code License Agreement and the installer will download and install Java for you, or you can simply download and install Java manually, then re-run the Readiness Checks. If you are going to do a manual install of Java or if you have a pre-existing Java installation please check in ES site if your version is compatibile or have some problem.

Usually you have no Java in your TFS Box, so it is safe to check the checkbox and have the installer do everything for your automatically.

SSH Support

To support SSH Protocol for Git, you should tell the installer that you want to enable the SSH Service and choose the port (22 by default)


Figure 5: SSH Support in TFS for Git

As TFS Evolves the Configure / Upgrade Wizard is more and more complete, and allows you to istall TFS without leaving the Wizard, and configuring / installing all dependent services for you.

Gian Maria.

Create a release in TFS 2015 / VSTS Release Management

This is the end of the journey of the last serie of posts. I’m now at the situation where I have a build that produces a single zip file with everything I need to deploy the software and a bunch of PowerShell scripts that relase the software using that zip as a source artifact.

Now it is time to automate the process with Release Management. I want to use RM because the process is automated on a chain of environments, but also I have traceability, auditing, and verification of the release procedures. I’m not going to cover all the steps needed to create the a release definition, I want to focus on how simple is creating a Release Process when you adopt Zip+PowerShell approach. I strongly suggest to have a look at official site if you never heard of VSTS / TFS Release Management.

If you have a zip and PowerShell files that release the software using only the zip, you are ten minutes away from a working Release Management definition

Let’s start creating a first release, the most important aspect is adding a build as Artifacts source, this allows the release to consume what is produced by the build.

this image shows how a build can be linked to Release MAnagement, so the RM process can access artifacts produced by the build

Figure 1: Add your build as a artifacts source for the release process

This build produces a couple of artifacts, the zipped file with everything and the set of PowerShell scripts needed to run the software (as I suggested they should always be stored in source control and moved as build artifacts). Thus the release process is really simple and is composed by only three steps.

The entire release process is only three task, as described further in the post.

Figure 2: The entire release process is composed only by three scripts

First two steps are used to copy zip file and installation scripts in a folder of the target machine (c:\deploy\jarvis\…). as you can see I’m using local administrator user, so this technique can be used even if the machine is not in the domain. You should now run this script on the machine where the agent is running.

Set-Item WSMan:\localhost\Client\TrustedHosts -Value WebTest -Force

This instruction should be run to the machine where the build agent is running, and specify that the target machine is a Trusted Hosts. If you are using domain credentials, this is not needed.

The password is stored inside a Release variable, to use secret variable feature, so noone that can edit this release can see the password in clear text.

Password for target machine is stored as secret variable in Configuration section

Figure 3: Password for target machine is stored as secret variable in Configuration section

Final step in Figure 2 is using the task to run the installation script in a remote machine machine.

This image shows the configuration of the Remote Powershell task that allows you to execute a powershell in a remote machine.

Figure 4: Run PowerShell in a remote machine to install software

If you already tested the script manually, there is no reason why it should fail in RM process. Remember that you should never use command that interact with the shell, and you should use Write-Output instead of Write-Host in your PowerShell script to be sure that no shell is used.

With only three task I’ve created a release definition for my software

Now you can trigger a new release, or have each build trigger a new release on the dev machine. The really interesting aspect is, using GitVersion and GitFlow, when you select the build you want to release, you can choose the branch you want to deploy instead of understanding what is in a build from its number.

Thanks to gitversion when you trigger a new release you can choose the build that you want to deploy, and you can choose using a semantic versioning like 1.5.0 or 1.5.0-beta1 instead that a generic build number

Figure 5: Trigger a release manually allows to specify the build you want to release

Ad you can see from Figure 5, you can easily choose the version of the software you want to release, it is really clear from the name of the build. Once the Release is started, if the deploy is set to occur automatically, the release immediately starts

This image simply shows that the release is in progress

Figure 6: Relase is in progress

Once the release is in progress, from the summary you can verify what version of the software is released in what environment. I have only one environment for this demo, and I can verify that 4 minutes ago the version 1.5.0 is deployed in that environment.

This image shows all releases done with this definition. New release of version 1.5.0 was completed 4 minutes ago

Figure 7: New release was deployed successful

I can now verify that the new version was really deployed correctly opening the software in target machine.

Opening the software the new version confirm that the deploy was really successful

Fgiure 8: New version of the software is correctly deployed

Once you have everything in place and use simple PowerShell approach, setting up a release management process is really straightforward.

Gian Maria.

Execute powershell code during a build in TFS 2015 Update 2

In TFS 2015 build system, running a PowerShell script stored in source code is simple because there is a dedicated action to accomplish this task, but if you want to run a PowerShell script that is not in source control, you have no option out of the Box.

Thanks to Update 2, you have now the ability to use the extensions you can find on Visual Studio Marketplace directly in your on-premise TFS installation. In the Upper Right corner of Web Ui you can find an icon that link to

This image shows the link in TFS UI to open the control panel to manage extension.

Figure 1: Link to manage extensions

This opens an administration page that allows you to manage extensions of your TFS installation. The first time you open this page, you will see no extension installed, so it is time to browse Visual Studio MarketPlace to find an extension. Actually I want to run inline PowerShell and I can immediately find that there is an extension that can solve my need.

As you can see from Figure 2, this extension have a couple of button, the first one, Install, is used to install this extension on one of your VSTS account, but if the extension is compatible with on-premise TFS you have also the option to Download the extension.

This image shows that extensions can be downloaded to local pc to be installed to TFS

Figure 2: Once you find an extension compatible with on-premise TFS you can download it.

The extension is a simple .vsix file, and from extension administration page you can upload to your TFS.

This image shows how you can upload downloaded extension to your TFS instance.

Figure 3: Once downloaded you can upload the extension to your TFS.

The process of uploading is really simple:

This image shows how you can choose the file to upload

Figure 4: Browse for downloaded extension

Tfs shows info for file to upload

Figure 5: Upload UI shows all the detail of the file

Now you can press Upload button, and the extension is uploaded to TFS and ready to be activated.

TFS shows the list of uploaded and installed extensions

Figure 6: Uploaded extension is now listed in the list of available extension

For each extension TFS ask you to install in specific project collection

  1. Figure 7: Install the extension on one or more collection

The concept behind “install then activate” is that, once uploaded the extension is available for the TFS Server instance, but then you should install in each Project Collection where you want to use that extension.

TFS asks you to choose the collection where you want to use the extension.

Figure 8: Choose the collection you want to install the extension into

Once you choose the Project Collection you need to confirm the operation

Figure 9: Confirm the selection

Once the Extension is installed in one Project Collection it can be used. In this example the extension contains a new build Task that allows you to execute an arbitrary PowerShell script during the build. To verify that everything is ok you can create a build and verify that the new Task is available and ready to use.

the extension is used in a build, where I was able to add the new task that executes arbitrary powershell code

Figure 10: The extension is ready and can be used

Thanks to TFS 2015 Update 2 you can Download and install extension for VSTS Marketplace to your on-premise TFS installation with few clicks.

Gian Maria.