How to install gitlab on Alibaba Cloud

Git is one of the most popular distributed version control systems and one of the most commonly used tools in the open source community. GitLab is an open source code warehouse management system based on Git. GitLab supports code warehouse management, code review, code tracking and collaboration, which can help teams better manage code. This article will introduce how to install GitLab on Alibaba Cloud.

1. Create an Alibaba Cloud ECS instance

The first step is to create an Alibaba Cloud ECS (Elastic Compute Service) instance. In the Alibaba Cloud Management Console, select the ECS instance, and then select the instance configuration and operating system image as needed. For us, it’s just a matter of choosing a suitable instance configuration and Ubuntu operating system image.

2. Update system

After logging in to the Ubuntu system, we need to update the system:

sudo apt-get update
sudo apt-get upgrade

3. Install the necessary software

Installing GitLab on Alibaba Cloud ECS requires some packages and software. Please use the following command to install them:

sudo apt-get install -y curl openssh-server ca-certificates tzdata perl

4. Install PostgreSQL

GitLab requires a database to store data. Therefore, we need to install a relational database. PostgreSQL is one of the officially recommended databases by GitLab and we will use it here. Please use the following command to install PostgreSQL:

sudo apt-get install -y postgresql postgresql-contrib libpq-dev

During the installation process, we need to set a PostgreSQL password.

5. Installing Ruby

GitLab is written in Ruby, so we need to install Ruby. Downloading and installing Ruby from the official website can be complicated, but RVM is a Ruby version manager that makes the installation process simple.

Please install RVM using the following command:

sudo apt-get install -y gnupg2 dirmngr
sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 \
  409B6B1796C275462A1703113804BB82D39DC0E3 \
  7D2BAF1CF37B13E2069D6956105BD0E739499BDB
echo "deb http://mirrors.tuna.tsinghua.edu.cn/rubygems/ all main" > /etc/apt/sources.list.d/rubygems.list
sudo apt-get update
sudo apt-get install -y rvm

Next, run the following command to apply our changes:

source /etc/profile.d/rvm.sh

Then, install Ruby using RVM:

rvm install 2.6.5

6. Install GitLab

Now, we can install GitLab. Please use the following command to install GitLab:

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

After the installation is complete, we need to configure some options. Open the GitLab configuration file:

sudo nano /etc/gitlab/gitlab.rb

Modify the value of "external_url" to the address where you actually access the GitLab page, such as http://gitlab.example.com.

We also need to configure PostgreSQL for GitLab. In GitLab's configuration file, find the "# external postgresql" field and uncomment it. Then, add the following value to the configuration file:

gitlab_rails['db_adapter'] = 'postgresql'
gitlab_rails['db_encoding'] = 'utf8'
gitlab_rails['db_host'] = '/var/run/postgresql'
gitlab_rails['db_port'] = '5432'
gitlab_rails['db_database'] = 'gitlabhq_production'
gitlab_rails['db_username'] = 'gitlab'

Next, we need to start GitLab and let it run automatically on system startup. Run the following commands:

sudo gitlab-ctl reconfigure
sudo gitlab-ctl start
sudo systemctl enable gitlab-runsvdir.service

These commands will start GitLab, automatically configure it, and cause GitLab to start automatically on subsequent system starts.

7. Log in to GitLab

Now that GitLab has been installed, we can access it through the browser. Enter the public IP address of Alibaba Cloud ECS in the browser, and then enter the administrator username and password set in the GitLab configuration file.

Now you can explore all the features of GitLab and use it to manage code repositories and collaborate. You can also add other GitLab users and projects if needed.

Summary

Installing GitLab on Alibaba Cloud ECS may require some work, but the process is not very complicated. This article provides some simple steps and we hope the guide can help you successfully install GitLab on Alibaba Cloud.

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