How to install gitlab

####gitlab installation as docker############
 1  sudo apt-get update
    2  sudo apt-get install     ca-certificates     curl     gnupg     lsb-release
    3  sudo mkdir -p /etc/apt/keyrings
    4  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
    5  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
    apt-get update
    6  sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
    8  docker --version
########how to install gitlab#####
export GITLAB_HOME=/srv/gitlab

sudo docker run --detach \
  --hostname gitlabred.eastus.cloudapp.azure.com \
  --publish 443:443 --publish 80:80 --publish 2222:22 \
  --name gitlab \
  --restart always \
  --volume $GITLAB_HOME/config:/etc/gitlab \
  --volume $GITLAB_HOME/logs:/var/log/gitlab \
  --volume $GITLAB_HOME/data:/var/opt/gitlab \
  --shm-size 256m \
  gitlab/gitlab-ee:latest

#####how to verify the installation of gitlab
sudo docker logs -f gitlab

####how to get the root password of gitlab
sudo docker exec -it gitlab grep 'Password:' /etc/gitlab/initial_root_password