func KillContainer(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
hostname := vars["hostname"]
c := db.GetContainer(hostname)
status := make(chan string)
go manager.Kill(&c, status)
<-status // block until the status updates
fmt.Fprintln(w, c.Serialize())
}
func ListContainer(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
hostname := vars["hostname"]
c := db.GetContainer(hostname)
fmt.Fprintln(w, c.Serialize())
}