GitLab Kubernetes

Updated March 28, 2023

Introduction to GitLab Kubernetes

GitLab provides different types of functionality to the user in which GitLab Kubernetes is one of the functionalities that GitLab provides. Normally Kubernetes is an open-source platform that offers different services to the user. Basically, it is acting as an agent that provides a secure connection between GitLab and Kubernetes as per the requirement. In other words, we can say that it provides the pull-based deployment so that we can receive the different alerts, and that alert is based on the different network policies. The main advantage of Kubernetes is that it automatically manages all the activity of our application.

What is GitLab Kubernetes?

The GitLab Kubernetes Agent gives a safe association between a GitLab occurrence and a Kubernetes bunch and permits pull-based organizations to get cautions dependent on the organization’s approach. We can perform SaaS on GitLab, GitLab.com and have a lot more components not far off.
Previously, the prescribed way of appending a group to GitLab was to give the bunch authentications and to open up the Kube API to GitLab.com. To take advantage of the mixes, we suggested joining the bunch with group administrator freedoms, so GitLab could arrange new namespaces and make survey applications. In any case, numerous clients viewed this to be excessively unsafe and, on second thought, carried out custom incorporations that were regularly worked around the GitLab Runner. Therefore, we need to improve and uphold security-disapproved clients with the Agent and furnish them with a protected, dependable, and future-confirmation combination arrangement among GitLab and their groups.
The Agent gives a protected association between the group and GitLab. We can control access by using Kubernetes features and GitLab features as per our requirements. The Agent gives a highly durable association utilizing WebSockets or gRPC between a Kubernetes group and a GitLab example. Since we need to keep the bunch side part insignificant and lightweight, we envision numerous Agents being introduced into a similar group with various access levels. In any case, this joining is perplexing. To see how the Agent functions, let me initially present its significant parts. GitLab and Kubernetes basically have two parts: GitLab and Kubernetes agent, or we can say that Kubernetes server. Agents are the bunch side part that must be conveyed in the group, while kas is the GitLab server-side part that is overseen closely by GitLab. Since we need to keep the bunch side part as thin as could really be expected, kas is answerable for a large part of the hard work.

Get Started GitLab Kubernetes

On the off chance that you might want to evaluate the Agent on GitLab.com, kas is introduced and overseen by our SRE group. Prior to making the Agent by and largely accessible, we need to ensure that Agent-based work processes will not hurt the presentation of GitLab.com.
This is the reason, right now, kas is just accessible for select clients and activities. However, in the event that you might want to give it a shot, contact me by email or by referencing me in an issue with your undertaking ID, and we will approve your venture.
GitLab’s kas example is accessible at wss://kas.gitlab.com. You should offer this benefit along with an enrolled specialist access token when you send an agent to your bunch. Otherwise, we need to install it.

Create GitLab Kubernetes

Given below shows how we can create GitLab Kubernetes as follows:

We need to follow the different steps to create it:

1. First, we must have an account on GitLab.

2. After that, we need to create a project, as shown in the following screenshot as follows.

Here we created a new project name as demo123, as shown in the above screenshot.

3. In the next step, we have added the Kubernetes Cluster Button below the project name; you simply need to click on that button. After clicking on the button, it looks like the below screenshot is as follows.

Now we can say see in the above screenshot there are two options; the first is we can create a new cluster as per our requirement, and the second is that we can connect an already created cluster. So as per requirement, we can select any option that we want.

If we select to create a new cluster, then we need to fill in the required information such as role, cluster region, etc. also, we need to integrate with the cluster certificate. So it can proceed to create the new cluster. On the other hand, if we select connect to an already cluster, then we need to login and select the project whatever we want.

The following screenshot shows what is the field we are required to fill as follows:

Running GitLab Kubernetes

GitLab Runner can utilize Kubernetes to run expands on a Kubernetes group. This is conceivable with the utilization of the Kubernetes agent.
The Kubernetes agent, when utilized with GitLab CI, associates with the Kubernetes API in the bunch, making a Pod for each GitLab CI Job. This Pod is comprised of, at any rate, a form holder, a partner compartment, and an extra holder for each help characterized in the .gitlab-ci.yml.