Here is a step-by-step guide to install GitLab on an Ubuntu server:
Prerequisites:
You need a VPS server with at least 4GB of RAM, and Ubuntu 18.04 or newer running on it.
Step 1: Install and Configure Needed Dependencies
Before installing GitLab, you’ll need to install and configure some required dependencies. First, update your Ubuntu server with the latest packages:
```
sudo apt update
sudo apt upgrade
```
Install dependencies:
```
sudo apt install curl openssh-server ca-certificates
```
If you want to use “Postfix” to send email notifications, install it and select “Internet Site” during the setup. If not, GitLab will send emails using “sendmail”.
```
sudo apt install postfix
```
Step 2: Install GitLab
First, add the GitLab repository:
```
curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.deb.sh | sudo bash
```
Now you can install GitLab using the following command:
```
sudo apt install gitlab-ce
```
Step 3: Configure GitLab
You can configure GitLab through the file “/etc/gitlab/gitlab.rb”.
Open it using a text editor:
```
sudo nano /etc/gitlab/gitlab.rb
```
Look for the line that starts with “external\_url” and change “http://gitlab.example.com” to the URL where you want to access your GitLab instance.
After making changes, save and close the file. Now run the following command to reconfigure GitLab:
```
sudo gitlab-ctl reconfigure
```
Step 4: Accessing Your GitLab Interface
You should now be able to access your GitLab web interface by going to your designated URL. The first time you visit, you’ll be prompted to set a password for the administrative account.
The Username will be “root” and the password is what you’ve just set. Once you’ve entered these details, you’ll be taken to your GitLab dashboard.
Now, GitLab is installed and ready to be used on your server.
