prefab

type Blueprint struct {
	Protocol      int
	Type          string
	Name          string
	Version       string
	Environment   string
	Deployability *dcontext.Deployability
	// the relative path where the file should be saved with respect to the root directory.
	// When set to "" or "/", the file will be placed directly in the root directory.
	TargetDir string
	User      string
	WorkDir   string
	EnvVar    []string // e.g. "PATH=/usr/local/bin:/usr/local/sbin"
	Command   []string // e.g. "python eaxmple.py"
	Depend    [][]*Prefab
	Context   *dcontext.DeployContext
}

type Prefab struct {
	// DockerHub, PyPI, Apt, LOCAL
	SpecType string
	Name     string
	// "any" is the best practice, providing more flexibility for the scheduling system
	Specifier string
	// if Filters returns false, then this prefab is not needed
	Deployability *dcontext.Deployability
}