How to install GitLab on CentOS 7

GITLAB
      Gitlab is a popular git repository hosting application. It is a great way to manage git repositories on a centralized server. GitLab gives you complete control over your repositories or projects and allows you to decide whether they are public or private for free

PREREQUISITES

• User with sudo permission
• Recommend at least 4GB of free memory to run GitLab

SYSTEM UPDATE 

       Before installing any packages in CentOS, it is recommended to update the system by running the following commands

• sudo yum -y install epel-release
• sudo yum -y update
• sudo shutdown -r now

INSTALLATION

      Gitlab provides Omnibus packages to install. Omnibus is a way to package different services and tools required to run GitLab so that users can install it without hard configuration.

• Install and configure the dependencies. The commands below will also open HTTP and SSH access in the system firewall.

sudo yum install -y curl policycoreutils openssh-server openssh-clients  

sudo systemctl enable sshd 

sudo systemctl start sshd 

sudo firewall-cmd --permanent --add-service=http 

sudo systemctl reload firewall

• Add the GitLab package repository

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

        (If you are behind the proxy means, set your proxy first)

• Install the GitLab package using yum

sudo yum install -y gitlab-ce

         Wait for some time to install it. A log is displayed, which includes green and grey lines.

• Configure the gitlab

sudo gitlab-ctl reconfigure

• Gitlab's configuration file can be found in /etc/gitlab/gitlab.rb. Open it with your text editor

nano  /etc/gitlab/gitlab.rb 

Find the line which contains external_url '<domain_name>’

Uncomment the external_url and give your domain

GitLab’s default set of configuration file is available over here

After you make any configuration changes in the /etc/gitlab/gitlab.rb, make sure to run the command sudo gitlab-ctl reconfigure

Browse to the hostname and login

Browse to the hostname which you gave in the external_url in the gitlab config file. Gitlab’s default User Name is root & Password is 5iveL!fe

Now your own gitlab server is ready to be accessed by the URL you configured in external_url.

OTHER COMMANDS

sudo gitlab-ctl status -> Check the status of gitlab service

sudo gitlab-ctl restart -> Restart the gitlab service 

sudo gitlab-ctl stop -> Stop the service

REFERENCES

https://about.gitlab.com/installation/#centos-7

http://docs.gitlab.com/omnibus/manual_install.html