Debug rails vs code

launch.json

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Rails server",
      "type": "Ruby",
      "request": "launch",
      "cwd": "${workspaceRoot}",
      "program": "${workspaceRoot}/bin/rails",
      "args": ["server"]
    }
  ]
}