docker on rhel

gistfile1.txt

    # class params
    $socket_group=undef
    $docker_users=[]
    
    # Override defaults which try to specify which repo to install from
    # we install from spacewalk with different reponames, and will just install
    # the latest version available
    $repo_opt = {}

            $dist_specific_opts = {
                'docker_ce_package_name'  => 'docker',
                'docker_ce_start_command' => 'dockerd-current',
                'extra_parameters'        => [
                    '--add-runtime docker-runc=/usr/libexec/docker/docker-runc-current',
                    '--default-runtime=docker-runc',
                    '--exec-opt native.cgroupdriver=systemd',
                    '--userland-proxy-path=/usr/libexec/docker/docker-proxy-current',
                ],
            }
            
    class {
        '::docker':
            repo_opt                    => $repo_opt,
            proxy                       => lookup('global::webproxy'),
            no_proxy                    => join(lookup('global::webproxy_exclusions'), ','),
            socket_group                => $socket_group,
            docker_users                => $docker_users,
            *                           => $dist_specific_opts;
    }