STEP 1:    SET UP THE REPOSITORY

 STEP 2: INSTALL DOCKER EE

2.1.2.1. Update the zypper package index   

   $ sudo zypper refresh  

2.1.2.2. Install the latest version of docker-ee 

   $ sudo zypper install docker-ee   

    $ sudo docker info 

2.1.2.2. install a specific version: List binary packages and is truncated:  

   $ zypper search -s --match-exact -t package docker-ee 

 Note:omit the -t package flag from the command to also list source packages 

  $sudo zypper install docker-ee-<VERSION_STRING> 

2.1.2.3.Configure Docker EE to use the Btrfs filesystem.  

                        This is only required if the / filesystem is not using BTRFS. 

 # /etc/docker/daemon.json (create it if it does not exist) and add the following contents: 

{  "storage-driver": "btrfs"} 

2.1.3. Start Docker:  

 $ sudo service docker start 

$ sudo docker info 

2.1.4. Verify that Docker EE 

$ sudo docker run hello-world   

This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.

$ systemctl status docker.service  

NOW YOU HAVE YOUR DOCKER INSTALLED SUCCESSFULLY !!

2.2.1. Download the .rpm file and install it manually  

   <url>/sles/12.3/ 

2.2.2.Import Docker’s official GPG key:  

   $ sudo rpm --import <DOCKER-EE-URL>/sles/gpg 

2.2.3.Install Docker EE   

   $ sudo zypper install /path/to/package.rpm 

Docker EE is installed but not started. The docker group is created, but no users are added to the group. 

2.2.4. Edit the file /etc/docker/daemon.json (create it if it does not exist)  

{ "storage-driver": "btrfs" }

2.2.5.Start Docker:  

   $ sudo service docker start 

2.2.6.Verify that Docker EE  

   $ sudo docker run hello-world

This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.