Remove tasks map from service

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

plugin/container.go

@@ -7,6 +7,7 @@ type TaskInfo struct {
 	ContainerID string
 	Runtime     string
 	Spec        []byte
+	Namespace   string
 }
 
 type Task interface {

plugin/runtime.go

@@ -34,6 +34,8 @@ type Exit struct {
 type Runtime interface {
 	// Create creates a container with the provided id and options
 	Create(ctx context.Context, id string, opts CreateOpts) (Task, error)
+	// Get returns a container
+	Get(context.Context, string) (Task, error)
 	// Containers returns all the current containers for the runtime
 	Tasks(context.Context) ([]Task, error)
 	// Delete removes the container in the runtime