engines

type Engine struct {
	EngineOperations
	*config.Common
}

type EngineOperations interface {
	// Config returns the current EngineConfig, used to populate the Common struct
	Config() config.EngineConfig
	// InitConfig is responsible for storing the parse config.Common inside
	// the EngineOperations implementation.
	InitConfig(*config.Common)
	// PrepareConfig is called in stage1 to validate and prepare container configuration.
	PrepareConfig(*starter.Config) error
	// CreateContainer is called in master and does mount operations, etc... to
	// set up the container environment for the payload proc.
	CreateContainer(int, net.Conn) error
	// StartProcess is called in stage2 after waiting on RPC server exit. It is
	// responsible for exec'ing the payload proc in the container.
	StartProcess(net.Conn) error
	// PostStartProcess is called in master after successful execution of container process.
	PostStartProcess(int) error
	// MonitorContainer is called in master once the container proc has been spawned. It
	// will typically block until the container proc exists.
	MonitorContainer(int, chan os.Signal) (syscall.WaitStatus, error)
	// CleanupContainer is called in master after the MontiorContainer returns. It is responsible
	// for ensuring that the container has been properly torn down.
	CleanupContainer(error, syscall.WaitStatus) error
}