Imports of package volume

PathSynopsis
github.com/Sirupsen/logrus
github.com/docker/docker/errors
github.com/docker/docker/pkg/system
osPackage os provides a platform-independent interface to operating system functionality.
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.