Docker the Gitlab Server

Install GitLab using Docker Compose

1. Install Docker Compose

# 1. remove installed & install dependency
sudo apt remove docker-desktop
sudo rm -r $HOME/.docker/desktop
sudo rm /usr/local/bin/com.docker.cli
sudo apt purge docker-desktop
sudo apt install gnome-terminal

# 2. setup the repository
sudo apt-get update

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo \
    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
    $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# 3. Install Docker

sudo apt-get update
sudo apt-get install docker-compose-plugin

2. Install GitLab

## 1. Preparation
# Go to the targeted folder
cd /mnt/data/Applications/gitlab

vi /etc/hosts
# private domain to IP
127.0.0.1    gitlab.example.com

vi .env
# set GITLAB_HOME in .env
GITLAB_HOME=/mnt/data/Applications/gitlab

vi docker-compose.yml
# docker-compose.yml
version: '3.6'
services:
  web:
    image: 'gitlab/gitlab-ee:latest'
    restart: always
    hostname: 'gitlab.example.com'
    environment:
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'http://gitlab.example.com:1080'
        gitlab_rails['gitlab_shell_ssh_port'] = 1022
        # Add any other gitlab.rb configuration here, each on its own line
    ports:
      - '1080:1080'
      - '443:443'
      - '1022:22'
    volumes:
      - '$GITLAB_HOME/:/mnt/data/Applications/gitlab' 
      - '$GITLAB_HOME/config:/mnt/data/Applications/gitlab/config'
      - '$GITLAB_HOME/logs:/mnt/data/Applications/gitlab/logs'
      - '$GITLAB_HOME/data:/mnt/data/Applications/gitlab/data'
    shm_size: '256m'

## 2. docker compose installation
sudo docker --env-file .env up -d

# 3. get password for root
sudo docker exec -it gitlab-web-1 grep 'Password:' /etc/gitlab/initial_root_password

## 4. Browsing GitLab
## http://gitlab.example.com:1080 
## or 
## 192.168.0.xxx:1080

# reconfiguration
sudo docker exec -it gitlab-web-1 editor /etc/gitlab/gitlab.rb
# reconfigure as needed
# ...
sudo docker stop gitlab-web-1
sudo docker restart gitlab-web-1

TBC...

TBC...  #TODO SMTP,