sudo yum remove docker docker-common docker-selinux docker-engine
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum makecache fast
sudo yum install docker-ce
sudo systemctl start docker
sudo groupadd docker
sudo usermod -aG docker $USER
sudo systemctl enable docker

docker pull gitlab/gitlab-ce

sudo yum install java-1.6.0-openjdk