-module(app1_sup). -behaviour(supervisor). %% API -export([start_link/0]). %% Supervisor callbacks -export([init/1]). start_link() -> supervisor:start_link(?MODULE, []). init([]) -> AChild = {harry,{app1_server,start_link,[]}, permanent,2000,worker,[app1_server]}, {ok,{{one_for_all,0,1}, [AChild]}}.