{
  "Fn::Join" : [ "",
    [
      "docker",
      " run -d ",
      "  --restart=on-failure",
      "  -p ",
      8080,
      ":8080",
      "  -e 'AWS_REGION=",
      {"Ref": "AWS::Region"},
      "'",
      "  ",
      "rancher/server:stable"
    ]
  ]
}