Installing GitLab CI on Ubuntu

Server preparation:

Let’s first update the list of packages in the repositories, set the correct time and open ports in the firewall.

Update package lists:

apt-get update

Set the timezone:

timedatectl set-timezone Europe/London

To automatically synchronize the time, install the package:

apt-get install chrony

And enable autostart of the service:

systemctl enable chrony

Firewall settings:

By default, Ubuntu’s firewall is set to accept any packets. But if we have it configured to block, we need to add ports 80 and 443.

iptables -I INPUT -p tcp --dport 80 -j ACCEPT

iptables -I INPUT -p tcp --dport 443 -j ACCEPT

And to save the rules, install iptables-persistent:

apt-get install iptables-persistent

and finally:

netfilter-persistent save

Installing GitLab

We will perform the installation in two steps – installing the necessary components and, in fact, installing GitLab.

Required Components:

apt-get install curl openssh-server ca-certificates

To send notifications, install postfix as well:

apt-get install postfix

When requesting the configuration type, select Internet Site (if notifications should be sent outside) or Local only (notifications within the server):

Installing GitLab

Let’s install the repository.

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

After installing the repository, we proceed to install GitLab.

apt-get install gitlab-ce

If the installation was successful, we should see:

It looks like GitLab has not been configured yet; skipping the upgrade script.

       *.                  *.
      ***                 ***
     *****               *****
    .******             *******
    ********            ********
   ,,,,,,,,,***********,,,,,,,,,
  ,,,,,,,,,,,*********,,,,,,,,,,,
  .,,,,,,,,,,,*******,,,,,,,,,,,,
      ,,,,,,,,,*****,,,,,,,,,.
         ,,,,,,,****,,,,,,
            .,,,***,,,,
                ,*,.
  

     _______ __  __          __
    / ____(_) /_/ /   ____ _/ /_
   / / __/ / __/ /   / __ `/ __ \\
  / /_/ / / /_/ /___/ /_/ / /_/ /
  \\____/_/\\__/_____/\\__,_/_.___/
  

Thank you for installing GitLab!

Configuring the web address:

For the portal to start and work correctly, we have to set the external_url. To do this, open the file:

nano /etc/gitlab/gitlab.rb

We only need to change the external_url parameter:

external_url 'http://gitlab.automationtools.me'

*this setting indicates that our web tool will respond to requests that come to the gitlab.automationtools.me node – this means that this name must be registered in DNS or registered in the local hosts file.

Let’s do the configuration:

gitlab-ctl reconfigure

This operation will take some time.

Login to the web interface:

We open the browser and enter our address, which we specified in the settings in the external_url option – in this example, http://gitlab.automationtools.me. We should see an authorization page that will ask us for an administrator password.

You can view the password that was assigned to the user after installation in the /etc/gitlab/initial_root_password file:

cat /etc/gitlab/initial_root_password | grep Password:

We enter as the root user and the password that we looked at in the file:

As a result, we get into our new local gitlab.