// Test the discovery process by writing and reading back service information
func TestDiscovery(t *testing.T) {
fmt.Println("eureka_test start")
listener := make(chan gotocol.Message)
edda.Logchan = make(chan gotocol.Message, 10) // buffered channel
archaius.Conf.Msglog = true
archaius.Conf.GraphjsonFile = "test"
archaius.Conf.GraphmlFile = "test"
go edda.Start("test.edda")
eureka := make(chan gotocol.Message, 10)
go Start(eureka, "test.eureka")
// stack up a series of requests in the buffered channel
eureka <- gotocol.Message{gotocol.Hello, listener, time.Now(), "test0" + " " + "test"}
eureka <- gotocol.Message{gotocol.Hello, listener, time.Now(), "test1" + " " + "test"}
eureka <- gotocol.Message{gotocol.Hello, listener, time.Now(), "thing0" + " " + "thing"}
eureka <- gotocol.Message{gotocol.GetRequest, listener, time.Now(), "test0"}
eureka <- gotocol.Message{gotocol.Goodbye, listener, time.Now(), ""}
// pick up responses until we see the Goodbye response
for {
msg := <-listener
if archaius.Conf.Msglog {
fmt.Printf("test_eureka: %v\n", msg)
}
if msg.Imposition == gotocol.Goodbye {
break
}
switch msg.Imposition {
case gotocol.GetResponse:
if msg.Intention != "test" {
t.Fail()
}
}
}
if edda.Logchan != nil {
close(edda.Logchan)
}
//wait until edda and eureka finish flushing and close files
Wg.Wait()
edda.Wg.Wait()
fmt.Println("eureka_test end")
}
// main handles command line flags and starts up an architecture
func main() {
flag.StringVar(&archaius.Conf.Arch, "a", "netflixoss", "Architecture to create or read, fsm, lamp, migration, netflixoss or json/????_arch.json")
flag.IntVar(&archaius.Conf.Population, "p", 100, "Pirate population for fsm or scale factor % for netflixoss etc.")
flag.IntVar(&duration, "d", 10, "Simulation duration in seconds")
flag.IntVar(&archaius.Conf.Regions, "w", 1, "Wide area regions")
flag.BoolVar(&graphmlEnabled, "g", false, "Enable GraphML logging of nodes and edges to <arch>.graphml")
flag.BoolVar(&graphjsonEnabled, "j", false, "Enable GraphJSON logging of nodes and edges to <arch>.json")
flag.BoolVar(&archaius.Conf.Msglog, "m", false, "Enable console logging of every message")
flag.BoolVar(&reload, "r", false, "Reload json/<arch>.json to setup architecture")
flag.BoolVar(&archaius.Conf.Collect, "c", false, "Collect metrics to json/<arch>_metrics.json and via http:")
flag.IntVar(&archaius.Conf.StopStep, "s", 0, "Stop creating microservices at this step, 0 = don't stop")
flag.StringVar(&archaius.Conf.EurekaPoll, "u", "1s", "Polling interval for Eureka name service")
flag.BoolVar(&archaius.Conf.Filter, "f", false, "Filter output names to simplify graph")
flag.IntVar(&cpucount, "cpus", runtime.NumCPU(), "Number of CPUs for Go runtime")
runtime.GOMAXPROCS(cpucount)
var cpuprofile = flag.String("cpuprofile", "", "Write cpu profile to file")
flag.Parse()
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if archaius.Conf.Collect {
collect.Serve(8123) // start web server at port
}
if graphjsonEnabled || graphmlEnabled {
if graphjsonEnabled {
archaius.Conf.GraphjsonFile = archaius.Conf.Arch
}
if graphmlEnabled {
archaius.Conf.GraphmlFile = archaius.Conf.Arch
}
// make a buffered channel so logging can start before edda is scheduled
edda.Logchan = make(chan gotocol.Message, 100)
}
archaius.Conf.RunDuration = time.Duration(duration) * time.Second
// start up the selected architecture
go edda.Start(archaius.Conf.Arch + ".edda") // start edda first
if reload {
asgard.Run(asgard.Reload(archaius.Conf.Arch), "")
} else {
switch archaius.Conf.Arch {
case "fsm":
fsm.Start()
//case "netflixoss": replaced by json_arch/netflixoss_arch.json
// netflixoss.Start()
//case "lamp": replaced by json_arch/lamp_arch.json
// lamp.Start()
case "migration":
migration.Start() // step by step from lamp to netflixoss
default:
a := architecture.ReadArch(archaius.Conf.Arch)
if a == nil {
log.Fatal("Architecture " + archaius.Conf.Arch + " isn't recognized")
} else {
architecture.Start(a)
}
}
}
log.Println("spigo: complete")
// stop edda if it's running and wait for edda to flush messages
if edda.Logchan != nil {
close(edda.Logchan)
}
edda.Wg.Wait()
flow.Shutdown()
}