vmimpl

type Env struct {
	// Unique name
	// Can be used for VM name collision resolution if several pools share global name space.
	Name    string
	OS      string // target OS
	Arch    string // target arch
	Workdir string
	Image   string
	SshKey  string
	SshUser string
	Debug   bool
	Config  []byte // json-serialized VM-type-specific config
}

type Instance interface {
	// Copy copies a hostSrc file into VM and returns file name in VM.
	Copy(hostSrc string) (string, error)

	// Forward setups forwarding from within VM to host port port
	// and returns address to use in VM.
	Forward(port int) (string, error)

	// Run runs cmd inside of the VM (think of ssh cmd).
	// outc receives combined cmd and kernel console output.
	// errc receives either command Wait return error or vmimpl.TimeoutErr.
	// Command is terminated after timeout. Send on the stop chan can be used to terminate it earlier.
	Run(timeout time.Duration, stop <-chan bool, command string) (outc <-chan []byte, errc <-chan error, err error)

	// Close stops and destroys the VM.
	Close()
}

type OutputMerger struct {
	Output chan []byte
	Err    chan error
	// contains filtered or unexported fields
}

type Pool interface {
	// Count returns total number of VMs in the pool.
	Count() int

	// Create creates and boots a new VM instance.
	Create(workdir string, index int) (Instance, error)
}