Hello friends, today, we are going to teach you about Gitlab runner. On that how can you install, register, start Gitlab runner and we will do this on the Windows operating system (Windows OS). So, if you want to learn Gitlab runner then we will start from very basic it means from scratch and we will go up step by step.

What is Gitlab runner?

Before, I write down the steps to all procedure that happens in Gitlab runner. Let us see, what is Gitlab runner? So, in the very simple word if you talk about Gitlab CI. It is an open-source continuous integration service included with Gitlab. So, this service by default is included with Gitlab. It is used to run jobs & send results back to Gitlab.    

How to install Gitlab runner?

So, you will go to your Google and search for Gitlab runner. There will be a documentation page and you will go there. You will see all the documentation about Gitlab runner there so, it is written in a go programming language. And you may see all the features will be there, it will allow multiple jobs concurrently & compatibility. Then you will have a section for installing Gitlab runner and have an installed link. If you will see that there will be a link for Gitlab runner from there, you may install it. And you have lots of binaries over there so, you will go on windows. You will go to your window system and go to the same link. So, you will have the instructions for installation. You will create a folder in the name Gitlab-runner and you will choose from your C drive option, create a folder in the name of that. And the next step, you will have to download the binary for your operating system. You will go to your computer and this pc option and do a right-click, you will go to properties option. And you can see all details about your operating system, the bit size & everything. So, you will choose the bit size and download the Gitlab runner .exe. If you will go to your download folder then it will be there. You will copy that from there & move it to the folder Gitlab runner that will have been created. You will paste in that and rename it. If you will go to the documentation page so, there will be mentioned to take the rename the binary to Gitlab runner. Then you will have to run an elevated command prompt for this. Now, what does it mean? It means that you can run your command line with admin rights. And you can also use Git bash there, you will just move to your command line and from there, you will choose run as administrator option. From there, you will go to the location of that folder. Suppose, you will have in other drives like e drive then first, you will have to change the drive-by saying or writing e: and enter then you can go to the location. Also, the shortcut is you can go to the address bar of your folder and you will say cmd, press enter. Then it will open in the same folder, this is the shortcut so, you can do it. In your folder, you will have to run the command GitLab runner .exe install. So, you will run this command in administrator then you will see that it is done. If you will say GitLab runner –version then you will get all details there. So, these are the commands:-

Gitlab runner .exe install

Gitlab runner –version

To check, if your GitLab runner is installed so, you can run the command gitlab runner –version. Then you can also start using this command GitLab runner .exe start.

How to register Gitlab runner?

Now, you need to register your GitLab runner. If you will go to the GitLab documentation page then you will have the link to register GitLab runner. If you will scroll down, you will see that multiple operating systems and documentation for that. Further, you will scroll down, you will have windows. There will be steps that you can use for windows. So, you will first run GitLab runner .exe stop to stop the runner and for registration, you will have to run the command GitLab runner .exe register then you will do the registration process. So, it will ask for GitLab coordinator-ci URL and after entering the URL. Then it will ask for a GitLab-ci token so, the token you will get from your projects. You will log in to your GitLab account and will go to your projects, you can also go to your projects from the top bar. Then in your projects, you will go to settings. Under settings, you will go to CI/CD and there you will find sections of the runner. You will see sections for setup runner manually, there you will also see those steps you will have already done and the token will be there. After providing the token, you will have to provide some description like my-runner1 and anything you can say here. And it will also ask for GitLab-ci tags then you can add like ssh, ci, etc. If you will enter then it will show register runner …..Succeeded and everything will be done. Then it will ask to enter the executor like ssh, Kubernetes, custom, virtual box, Docker machine, etc. Then you will put shell and press enter so, it will show the runner registered successfully. So, you will start the runner using the command like gitLab runner .exe start  

How to start Gitlab runner?

Now, you will have to check. To start the Gitlab runner, the gitLab runner .exe start is the command to check. Then you will have to check if the runner is started and the next step will be to check runner is started in the project. The same thing, you will have to do for this. You will go to your projects then settings and after CI/CD. Again, you will go to runner and scroll down. If you will scroll down, you would see the project is activated under the runner. You will also see the name that you had given to that. Now, this runner will be activated and it can run the jobs. All this, you will have learned how to run jobs, use tags, and Gitlab ci. I hope, this data will be very helpful for you.

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When a newly released application ships with bugs, the fallout is manageable. Users grumble, support tickets climb, and workarounds appear. The same tolerance simply does not exist for a failed network upgrade. When the network goes down, everything stops—connectivity, productivity, and customer service all cease simultaneously. The stakes are categorically different.

This asymmetry between application risk and network risk sits at the heart of why software-defined networking (SDN) and virtual network functions (VNF) demand a fundamentally different approach to operations. The traditional network upgrade model—a handful of vendors, annual or semi-annual cycles, tightly controlled change windows—was already fragile. As networks move to software, that model breaks entirely.

Why SDN Changes the Risk Profile

In the legacy hardware networking model, operators typically relied on three or four incumbent vendors. Upgrades were infrequent, well-documented, and vendor-supported. Even so, every change carried real resilience risk.

Software-defined networks change this dynamic in several compounding ways:

• Broader vendor ecosystems. SDN environments draw on a wider set of best-of-breed partners, each delivering components that must interoperate correctly.
• Higher update frequency. Software components are updated far more often than hardware firmware, increasing the number of change events per year.
• Lower technology maturity. Many SDN and VNF components are newer than their hardware equivalents, meaning less field-hardening and more potential for unexpected failure modes.
• Greater blast radius. Because software controls the data plane, a misconfigured update can affect the entire network rather than an isolated hardware segment.

A network outage carries costs beyond lost productivity. Reputational damage to the business can be lasting and, in some cases, irreversible. This is why the traditional upgrade playbook will not scale in an SDN/VNF world, and why network operations must borrow—and significantly extend—the discipline of software DevOps.

Processes: DevOps for Networks Is Not Off-the-Shelf

Software DevOps has a mature toolchain: CI/CD pipelines, automated testing frameworks, container orchestration, observability platforms. Network DevOps does not yet have a comparable off-the-shelf equivalent. Platforms are emerging that operators can customize to automate network change management, but they require significant adaptation to meet network-specific requirements.

The core difference is that network DevOps must treat resilience as a non-negotiable constraint, not just a quality attribute. This reshapes every phase of the continuous testing, continuous development, and continuous integration (CT/CD/CI) loop:

• Functional integrity testing verifies that the update does what it is supposed to do.
• Stress testing validates behavior under peak and abnormal load conditions.
• Interoperability testing confirms that updated components work correctly with every adjacent component in the multi-vendor stack.
• Feature set compatibility testing ensures that new software does not silently break existing capabilities.

In practice, this can mean running a comprehensive test suite against network software patches on a cadence as frequent as every six weeks. Service providers developing their own software extensions on top of vendor platforms add another layer: those extensions must also be validated for consistency before any production deployment. The combination of frequency, breadth, and depth makes this testing regime substantially more demanding than what most IT DevOps teams handle today.

Talent: Skills Assessment Before Transformation

Network engineers who have spent careers managing hardware upgrades are experts in what they do—but their skill set does not automatically transfer to agile DevOps workflows, infrastructure-as-code practices, or automated test pipeline management. CTIOs and network engineering leaders need to begin with an honest skills assessment before committing to a transformation timeline.

That assessment will typically reveal two categories of action:

• Training existing staff. Comprehensive workshops on agile methods, CI/CD tooling, and software lifecycle management can close gaps for engineers who have the foundational networking knowledge but lack the DevOps workflow experience.
• Hiring new talent. Some expertise—particularly around pipeline automation, software testing at scale, and cloud-native networking—will need to be recruited externally. Engineers with this profile are in high demand, making retention as important as recruitment.

The transition also requires managing what is sometimes called multi-speed IT: the legacy hardware network team and the new software DevOps team must coexist, collaborate, and ultimately converge. These groups will have different professional backgrounds, different working rhythms, and different instincts about acceptable risk. Building a shared culture of mutual respect—where each team understands the value the other brings—is not a soft concern. It is an operational requirement. Without it, coordination failures will cause the outages the transition is supposed to prevent.

Management and Leadership: Not the Same Thing

SDN transformation is a complex, interconnected program. Multiple workstreams—technology, process, talent, culture—must advance in parallel and stay synchronized. Initiatives that get out of phase with one another create exactly the kind of instability the transformation is meant to eliminate.

Management provides the plan, the checkpoints, and the governance. Leadership provides something different: the credibility and trust that keeps teams motivated and on course when things go wrong—and things will go wrong. The difference matters because setbacks in a high-stakes network transformation can erode team confidence quickly. Leaders who have built trust before a crisis can keep teams focused on the end goal; managers who have not will find that momentum collapses at the first significant incident.

Practical mechanisms that support both management and leadership through this transition include:

• A documented transformation plan with clear milestones and owners
• Regular, in-depth progress checkpoints rather than infrequent status updates
• Transparent communication across teams about what is working and what is not
• Explicit acknowledgment that rebalancing is expected and normal, not a sign of failure

The Art of Balance: Questions Every Organization Must Answer

No two organizations face identical SDN transformation challenges. The right pace, the right tooling, and the right team structure depend on factors specific to each business. Before committing to a transformation roadmap, network and IT leaders should work through these questions honestly:

• How fast should you move? The competitive pressure to modernize must be weighed against the operational risk of moving faster than your teams and processes can safely absorb.
• Are you actually ready to start? Do you have the planning depth, capital budget, and talent baseline to initiate the transformation without destabilizing current operations?
• Can you keep the network resilient throughout? Core network availability must be maintained while the transformation is underway. This is not a constraint to optimize around; it is a hard requirement.
• Will the modernized network serve your business needs? Technology investment must map to specific business capabilities and opportunities, not just technical modernization for its own sake.
• Have you engaged the right external expertise? The novelty of this problem means most organizations will benefit from advisors who have navigated it before.

A software-defined network that reduces operating costs while enabling digital business capabilities is a genuine and achievable goal. But the path requires treating network operations with the same engineering discipline applied to software development—and then adding the additional rigor that network resilience demands. Organizations that approach this transformation with clear-eyed planning, honest skills assessment, and strong leadership will find it not only possible, but necessary for competing in a software-driven industry.