{
  "env": {
    "SIMPLE_VAR": "simple_value",
    "OBJECT_VAR": {
      "description": "A variable with a default value",
      "value": "object_default"
    },
    "SECRET_VAR": {
      "description": "A generated secret",
      "generator": "secret"
    },
    "OPTIONAL_VAR": {
      "description": "An optional variable",
      "required": false
    },
    "SYNC_VAR": {
      "description": "A variable that syncs on every deploy",
      "value": "sync_value",
      "sync": true
    }
  },
  "scripts": {
    "dokku": {
      "predeploy": "echo ENV_CHECK: SIMPLE_VAR=$SIMPLE_VAR OBJECT_VAR=$OBJECT_VAR"
    }
  }
}