func main() {
n := flag.String("name", os.Getenv("NAME"), "zoidberg name")
h := flag.String("host", os.Getenv("HOST"), "host")
p := flag.String("port", os.Getenv("PORT"), "port")
bff := flag.String("balancer-finder", os.Getenv("BALANCER_FINDER"), "balancer finder")
aff := flag.String("application-finder", os.Getenv("APPLICATION_FINDER"), "application finder")
z := flag.String("zk", os.Getenv("ZK"), "zk connection in host:port,host:port/path format")
flag.Parse()
if *bff == "" || *aff == "" || *h == "" || *p == "" || *z == "" {
flag.PrintDefaults()
os.Exit(1)
}
bf, err := balancer.FinderByName(*bff)
if err != nil {
log.Fatal(err)
}
af, err := application.FinderByName(*aff)
if err != nil {
log.Fatal(err)
}
zc, zp, err := initZK(*z)
if err != nil {
log.Fatal(err)
}
e, err := zoidberg.NewExplorer(*n, af, bf, zc, zp)
if err != nil {
log.Fatal(err)
}
go func() {
addr := fmt.Sprintf("%s:%s", *h, *p)
log.Fatal(http.ListenAndServe(addr, e.ServeMux()))
}()
err = e.Run()
if err != nil {
log.Fatal(err)
}
}
func main() {
n := flag.String("name", "", "zoidberg name")
m := flag.String("master", "", "mesos master url")
b := flag.String("balancer", "", "balancer to provide")
z := flag.String("zk", "", "zk connection in host:port,host:port/path format")
flag.Parse()
if *n == "" || *m == "" || *b == "" || *z == "" {
flag.PrintDefaults()
os.Exit(1)
}
if os.Getenv("HOST") == "" || os.Getenv("PORT") == "" {
log.Println("HOST and PORT environment variables should be set")
os.Exit(1)
}
host := os.Getenv("HOST")
port, err := strconv.Atoi(os.Getenv("PORT"))
if err != nil {
log.Fatal("error parsing port from environment:", err)
}
if !strings.Contains(*z, "/") {
log.Fatal("zk connection string is invalid")
}
zz := strings.SplitN(*z, "/", 2)
zh, zp := zz[0], "/"+zz[1]
zp = path.Clean(zp)
zc, zch, err := zk.Connect(strings.Split(zh, ","), time.Minute)
if err != nil {
log.Fatal("error connecting to zookeeper:", err)
}
go func() {
for e := range zch {
log.Println("received zk event:", e)
}
}()
d := zoidberg.NewMesosDiscoverer([]string{*m}, *b)
e, err := zoidberg.NewExplorer(*n, d, zc, zp)
if err != nil {
log.Fatal(err)
}
go func() {
addr := fmt.Sprintf("%s:%d", host, port)
err := http.ListenAndServe(addr, e.ServeMux())
if err != nil {
log.Fatal(err)
}
}()
err = e.Run()
if err != nil {
log.Fatal(err)
}
}
func main() {
m := flag.String("marathon", "", "marathon url")
b := flag.String("balancer", "", "balancer name")
z := flag.String("zk", "", "zk connection in host:port,host:port/path format")
flag.Parse()
if *m == "" || *b == "" || *z == "" {
flag.PrintDefaults()
os.Exit(1)
}
if os.Getenv("HOST") == "" || os.Getenv("PORT") == "" {
log.Println("HOST and PORT environment variables should be set")
os.Exit(1)
}
host := os.Getenv("HOST")
port, err := strconv.Atoi(os.Getenv("PORT"))
if err != nil {
log.Fatal("error parsing port from environment:", err)
}
if !strings.Contains(*z, "/") {
log.Fatal("zk connection string is invalid")
}
zz := strings.SplitN(*z, "/", 2)
zh, zp := zz[0], "/"+zz[1]
log.Println(zh, zp)
zc, zch, err := zk.Connect(strings.Split(zh, ","), time.Minute)
if err != nil {
log.Fatal("error connecting to zookeeper:", err)
}
go func() {
for e := range zch {
log.Println("received zk event:", e)
}
}()
mc, err := marathon.NewClient(marathon.Config{
URL: *m,
RequestTimeout: 5,
})
if err != nil {
log.Fatal(err)
}
l := zoidberg.ExplorerLocation{
Host: host,
Port: port,
}
d := zoidberg.NewMarathonDiscoverer(mc, *b)
e, err := zoidberg.NewExplorer(d, zc, zp, l)
if err != nil {
log.Fatal(err)
}
go func() {
addr := fmt.Sprintf("%s:%d", host, port)
err := http.ListenAndServe(addr, e.ServeMux())
if err != nil {
log.Fatal(err)
}
}()
err = e.Run()
if err != nil {
log.Fatal(err)
}
}