I recommend having a computer nearby while reading this book so that you can explore the user interface options in GitLab as you go. While knowledge of PHP isn't a prerequisite, it is used in the example project, so passing familiarity is handy. If you've used other object-oriented programming languages before it'll mostly make sense.

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/GitLab-Quick-Start-Guide. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: https://www.packtpub.com/sites/default/files/downloads/9781789534344_ColorImages.pdf.

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Firstly we need to update the external_url value in our /etc/gitlab
/gitlab.rb file to reference HTTPS."

A block of code is set as follows:

 <?php
namespace Judges119\Monolog\Formatter;
use Monolog\Formatter\FormatterInterface;
class ROT13Formatter implements FormatterInterface
{
public function format(array $record)
{
return str_rot13($record['message']);
}
public function formatBatch(array $records)
{
foreach ($records as $key => $record) {
$records[$key] = $this->format($record);
}
return $records;
}
}

Any command-line input or output is written as follows:

sudo apt-get update
sudo apt-get install -y curl openssh-server ca-certificates 

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "The last section of interest to us is Environments. By clicking on Operations | Environments through the menu on the left "