state: Store container ID in requested state.

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

cluster/cluster.go

@@ -44,6 +44,7 @@ func (c *Cluster) DeployContainer(node *Node, config *dockerclient.ContainerConf
 
 	// Commit the requested state.
 	st := &state.RequestedState{
+		ID:     container.Id,
 		Name:   name,
 		Config: config,
 	}

state/state.go

@@ -5,6 +5,7 @@ import (
 )
 
 type RequestedState struct {
+	ID     string
 	Name   string
 	Config *dockerclient.ContainerConfig
 }