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Documentation for

How to Install GitLab and Set Up Your First DevOps Project

YouTube video

GitLab Documentation

Official Getting Started Guide

Example Environment: Debian 12

Pre-Install

sudo apt update
sudo apt install -y curl openssh-server ca-certificates perl tzdata

Install GitLab

Add the GitLab repository and install GitLab CE:

curl https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.deb.sh | sudo bash
sudo EXTERNAL_URL="http://your-server-ip" apt install gitlab-ce

If password is not displayd, show with cat /etc/gitlab/initial_root_password

Optimize GitLab for Performance

Edit the GitLab config:

sudo nano /etc/gitlab/gitlab.rb

Modify the following:

puma['worker_processes'] = 2
sidekiq['concurrency'] = 9
prometheus_monitoring['enable'] = false

Apply configuration changes:

sudo gitlab-ctl reconfigure

Access GitLab in Browser

Navigate to:

http://your-server-ip

Set the root password and log in with:

  • Username: root
  • Password: Auto-generated during installation and saved under
    /etc/gitlab/initial_root_password (valid for 24 hours).

Create Your First Project

  1. Create a project named ansible
  2. Initialize with a README.md
  3. Clone the repo:
git clone http://your-server-ip/root/ansible.git

Replace the URL with your actual GitLab project path if different. If Git is not installed, run:

sudo apt install git -y

Add Ansible Playbook + Lint Locally

cd ansible
nano playbook.yml

Sample playbook:

- name: Test Ansible
  hosts: localhost
  tasks:
    - name: Debug message
      ansible.builtin.debug:
        msg: "I'm Ansible"

Install and run linter:

sudo apt install ansible-lint
ansible-lint playbook.yml

Commit and Push Changes

If you're using Git for the first time, configure your identity:

git config --global user.name "User Name"
git config --global user.email "your_email@example.com"
git add .
git commit -m "Init"
git push