Add concurrency and id flag for daemon

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

machine.go

@@ -3,12 +3,15 @@ package containerd
 import "github.com/cloudfoundry/gosigar"
 
 type Machine struct {
+	ID     string
 	Cpus   int
 	Memory int64
 }
 
-func CollectMachineInformation() (Machine, error) {
-	m := Machine{}
+func CollectMachineInformation(id string) (Machine, error) {
+	m := Machine{
+		ID: id,
+	}
 	cpu := sigar.CpuList{}
 	if err := cpu.Get(); err != nil {
 		return m, err