How to Install GitLab CI on POP! OS Latest

GitLab CI is a continuous integration and deployment tool that helps developers automate their workflows and improve the quality of their code. In this tutorial, we will learn how to install GitLab CI on POP! OS Latest through the command line.

Prerequisites

Before we proceed with the installation, we need to ensure that the following prerequisites are met:

• A system running POP! OS Latest
• Basic knowledge of the command line interface
• sudo user privileges

Step 1: Install Docker

GitLab CI requires Docker to be installed on the system. Docker is a platform that allows developers to build, test, and deploy their applications consistently and efficiently.

To install Docker on POP! OS Latest, run the following commands in the terminal:

sudo apt update
sudo apt install docker.io

Step 2: Install GitLab Runner

GitLab Runner is the tool that runs jobs for GitLab CI. It is responsible for cloning the repository, executing the scripts, and reporting the results back to GitLab.

To install GitLab Runner on POP! OS Latest, run the following commands in the terminal:

sudo curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh | sudo bash
sudo apt-get install gitlab-runner

After installing GitLab Runner, we need to register it with GitLab. To do this, we need to obtain the registration token from GitLab:

1. Log in to your GitLab account and go to Settings > CI/CD > Runners.
2. Copy the registration token.

Now, let's register the GitLab Runner with the registration token:

sudo gitlab-runner register \
  --url https://gitlab.com/ \
  --registration-token <registration_token> \
  --executor docker \
  --description "My Docker Runner" \
  --docker-image "docker:latest" \
  --docker-privileged

Replace <registration_token> with the registration token that you copied from GitLab.

Step 3: Verify the Installation

To verify that GitLab CI is installed correctly, we can create a sample project and configure GitLab CI to run a simple test.

1. Create a new project in your GitLab account.
2. Add a .gitlab-ci.yml file with the following content:

stages:
  - test

test:
  stage: test
  image: alpine:latest
  script:
    - echo "Hello, GitLab CI!"

This configuration file defines a single stage for testing and a job that runs a simple shell script.

3. Push the changes to GitLab.

After pushing the changes, GitLab CI will automatically pick up the new configuration file and run the test job. You can view the job status and logs in the CI/CD > Pipelines section of your GitLab project.

Congratulations! You have successfully installed and configured GitLab CI on POP! OS Latest. You can now use GitLab CI to automate your workflows and improve the quality of your code.

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