What are the configuration steps for GitLab on CentOS

Deploying GitLab on CentOS system requires a series of steps, including software package installation, network configuration, email service settings, GitLab installation, and configuration file modification. The following steps will guide you through this process in detail:

1. Install dependencies

First, update the system and install the necessary dependency packages:

 sudo yum update -y
sudo yum install -y curl policycoreutils-python openssh-server postfix wget vim

2. Network configuration

Configure a firewall to allow HTTP and HTTPS traffic:

 sudo yum install firewalld -y
sudo systemctl enable firewalld
sudo systemctl start firewalld
sudo firewall-cmd --permanent --add-service=http
sudo firewall-cmd --permanent --add-service=https
sudo firewall-cmd --reload

3. Mail service configuration

Install and configure Postfix mail server to send GitLab notification emails:

 sudo yum install postfix -y
sudo systemctl enable postfix
sudo systemctl start postfix

Next, edit the /etc/gitlab/gitlab.rb file and configure the mail server information (for example, using QQ mailbox):

 gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.exmail.qq.com"
gitlab_rails['smtp_port'] = 465
gitlab_rails['smtp_user_name'] = "your_email@example.com"
gitlab_rails['smtp_password'] = "your_password"
gitlab_rails['smtp_authentication'] = "login"
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = true
gitlab_rails['gitlab_email_from'] = 'your_email@example.com'
gitlab_rails['smtp_domain'] = "example.com"

Please replace "your_email@example.com" and "your_password" with your actual email address and password. After the configuration is complete, execute the following command to make the changes take effect:

 sudo gitlab-ctl reconfigure

4. GitLab installation

Add GitLab's RPM image source and install the GitLab package (the version number may need to be adjusted according to the actual situation):

 wget https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el7/gitlab-ce-17.3.1-ce.0.el7.x86_64.rpm # Please check and use the correct version sudo rpm -i gitlab-ce-17.3.1-ce.0.el7.x86_64.rpm

V. GitLab configuration

Edit the GitLab configuration file /etc/gitlab/gitlab.rb , set external URLs and other necessary configurations:

 sudo vim /etc/gitlab/gitlab.rb

For example, set the external URL to http://your_server_ip:8080 . After saving and closing the file, execute again:

 sudo gitlab-ctl reconfigure

6. GitLab startup

Start the GitLab service and set it to boot automatically:

 sudo gitlab-ctl start
sudo systemctl enable gitlab-ce

7. Visit GitLab

After completing the above steps, you can access the GitLab interface through the server IP address and port number (for example http://your_server_ip:8080 ). When logging in for the first time, you will use the username root and the default password 5iveL!fe , and the system will prompt you to change the password.

Important: Be sure to refer to the official GitLab documentation for the latest installation guide and configuration instructions, as version updates may cause changes in steps and configuration items. The above steps are for reference only. Please adjust them according to your environment in actual operation.

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