Installing Rancher Server

Follow these steps to install Rancher Server: 

1. Install a supported version of Docker. You can skip this step if you have Docker installed already:

$ sudo apt-get -y install apt-transport-https ca-certificates curl \
software-properties-common
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
$ sudo apt-get -y install docker-ce && docker --version

2. Add a user to a Docker group:

$ sudo usermod -a -G docker $USER

3. To install Rancher Server, run the following command: 

docker run -d --restart=unless-stopped \
-p 80:80 -p 443:443 rancher/rancher:latest

4. Open a browser window and go to https://localhost. Replace localhost with your host's IP if necessary.
5. Set a new password and click on Continue.
6. Set the public IP address of Rancher server and click on Save URL. This IP needs to be externally accessible from your clusters.