Hands-On Auto DevOps with GitLab CI - Custom Kubernetes Runners

This video tutorial explores the use of custom Kubernetes runners for GitLab CI/CD. It begins by discussing the benefits of using Kubernetes clusters for running GitLab builds, especially if a cluster is already in place. The tutorial then demonstrates how to install a GitLab runner on a Kubernetes cluster, verify its installation, and execute builds. It also highlights important considerations, such as service naming conventions, when adapting builds for Kubernetes runners. The video concludes with a brief overview of the next topic, which involves setting up a private GitLab server.

What is the main advantage of using a Kubernetes cluster for GitLab builds?

• It provides faster build times.

• It leverages existing infrastructure without needing new instances.

• It allows for more secure builds.

• It is cheaper than using AWS EC2 instances.

Which tool is mentioned as having good support for installing GitLab Runner on Kubernetes?

• Ansible

• Chef

• Terraform

• Puppet

How can you verify that GitLab Runner is installed on a Kubernetes cluster?

• By checking the GitLab server logs.

• By accessing the Kubernetes dashboard.

• By running a test build.

• By checking the GitLab CI/CD settings for activated runners.

What is created in the Kubernetes cluster when GitLab is attached?

• A new pod

• A new deployment

• A new namespace

• A new service

What is a key consideration when using services with Kubernetes-based builds in GitLab CI?

• Services require additional configuration in the Kubernetes dashboard.

• Services cannot be used with Kubernetes-based builds.

• Services run in the same pod but require different naming conventions.

• Services must be defined in a separate YAML file.

What change is necessary in the GitLab CI YAML file when adapting builds for Kubernetes runners?

• Use of specific IP addresses for services.

• Addition of new environment variables.

• Modification of the build script.

• Inclusion of a new runner tag.

What is the benefit of using existing Kubernetes clusters for GitLab CI builds?

• It enhances the security of the builds.

• It improves the speed of the builds.

• It reduces the need for additional cloud resources.

• It simplifies the CI/CD pipeline configuration.