func NewDockerCmdlineHelper() DockerHelper {
	return &dockerCmdlineHelper{}
}
NewDockerCmdlineHelper returns a new command line DockerHelper instance
package dockerutil
import (
	"fmt"
	"os/exec"
	"strings"
)
type DockerHelper interface {
	GetIPAddress(containerID string) (string, error)
	RemoveContainersWithNamePrefix(namePrefix string) error
}