How to Install GitLab CI on Ubuntu Server Latest

GitLab CI is a continuous integration tool that helps in automating software development workflows. It is designed to work seamlessly with GitLab, a popular web-based Git repository manager.

This tutorial will provide a step-by-step guide to install GitLab CI on Ubuntu Server Latest.

Prerequisites

Before we proceed with the installation, ensure that:

• You have root access to an Ubuntu Server Latest.
• You have a GitLab account and a Git repository to work with.

Step 1: Install GitLab CE/EE

GitLab CI is a part of GitLab. Therefore, GitLab CE/EE must be installed and set up before using GitLab CI.

To install GitLab CE/EE, follow the instructions on the GitLab website.

https://about.gitlab.com/install/

Step 2: Install GitLab CI Runner

To install GitLab CI Runner, first, add the official GitLab Runner repository:

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

Then, install GitLab CI Runner:

sudo apt-get install gitlab-runner

Step 3: Register the Runner

After installing GitLab CI Runner, you need to register it with GitLab.

To do this, run:

sudo gitlab-runner register

You will be prompted to enter:

• Your GitLab server URL.
• Your GitLab runner token.
• The way you want to run your builds.

Step 4: Start the Runner

After registering the runner, start the runner service:

sudo service gitlab-runner start

Step 5: Configure Your GitLab Project

Finally, configure your GitLab project to use GitLab CI.

To do this, create a .gitlab-ci.yml file in the root directory of your project that defines your build pipeline.

Here is an example .gitlab-ci.yml file:

stages:
  - build
  - test
  - deploy

build_job:
  stage: build
  script:
    - echo "Building the application..."

test_job:
  stage: test
  script:
    - echo "Running tests..."

deploy_job:
  stage: deploy
  script:
    - echo "Deploying the application..."

In this example, we define three stages: build, test, and deploy. Each stage has a job that will run the associated script.

Conclusion

In this tutorial, we have seen how to install GitLab CI on Ubuntu Server Latest. We have also seen how to register and start the runner and configure a GitLab project to use GitLab CI.

Through the script, the automation of the continuous integration of unit testing in the development process guarantees the evaluation of the quality and performance of the software. GitLab CI offers a simpler interface than most other tools, allowing developers to quickly get started with continuous integration.