func main() {
config, _ := skynet.GetClientConfig()
var err error
config.Log = skynet.NewConsoleSemanticLogger("TestServiceClient", os.Stderr)
client := client.NewClient(config)
// This will not fail if no services currently exist, as
// connections are created on demand this saves from chicken and
// egg issues with dependencies between services
service := client.GetService("TestService", "", "", "")
// (any version, any region, any host)
// This on the other hand will fail if it can't find a service to
// connect to
in := map[string]interface{}{
"data": "Upcase me!!",
}
out := map[string]interface{}{}
err = service.Send(nil, "Upcase", in, &out)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(out["data"].(string))
}
func NewClient(config *skynet.ClientConfig) *Client {
// Sanity checks (nil pointers are baaad)
if config.Log == nil {
config.Log = skynet.NewConsoleSemanticLogger("skynet", os.Stderr)
}
if config.DoozerConfig == nil {
config.DoozerConfig = &skynet.DoozerConfig{Uri: "localhost:8046"}
}
if config.MaxConnectionsToInstance == 0 {
config.Log.Fatal("Must allow at least one instance connection")
}
doozerConn := skynet.NewDoozerConnectionFromConfig(*config.DoozerConfig,
config.Log)
client := &Client{
Config: config,
DoozerConn: doozerConn,
Log: config.Log,
servicePools: map[string]*servicePool{},
}
client.Log.Trace(fmt.Sprintf("Created client '%+v'", client))
client.DoozerConn.Connect()
client.instanceMonitor = NewInstanceMonitor(client.DoozerConn, false)
return client
}
func main() {
var err error
flag.Parse()
log = skynet.NewConsoleSemanticLogger("dashboard", os.Stderr)
if *mgoserver == "" {
log.Trace(fmt.Sprintf("%+v", skynet.MongoError{
"",
"No mongodb server url (both -mgoserver and SKYNET_MGOSERVER missing)",
}))
}
mlogger, err := skynet.NewMongoSemanticLogger(*mgoserver, "skynet",
"log", skynet.UUID())
if err != nil {
log.Error(fmt.Sprintf("%+v", skynet.MongoError{
Addr: "Could not connect to mongo db for logging",
Err: err.Error(),
}))
}
log = skynet.NewMultiSemanticLogger(mlogger, log)
DC = Doozer()
http.HandleFunc("/", indexHandler)
http.HandleFunc("/logs/search", searchHandler)
http.Handle("/media/", http.StripPrefix("/media/", http.FileServer(http.Dir(*webroot+"/tmpl"))))
http.Handle("/favicon.ico", http.FileServer(http.Dir(*webroot+"/tmpl/images")))
http.Handle("/logs/ws", websocket.Handler(wsHandler))
im := client.NewInstanceMonitor(DC, true)
http.Handle("/instances/ws", websocket.Handler(func(ws *websocket.Conn) {
NewInstanceSocket(ws, im)
}))
// Cache templates
layoutTmpl = template.Must(template.ParseFiles(*webroot +
"/tmpl/layout.html.template"))
indexTmpl = template.Must(template.ParseFiles(*webroot +
"/tmpl/index.html.template"))
searchTmpl = template.Must(template.ParseFiles(*webroot +
"/tmpl/search.html.template"))
err = http.ListenAndServe(*addr, nil)
if err != nil {
log.Fatal("ListenAndServe: " + err.Error())
}
}
func main() {
testService := NewTestService()
config, _ := skynet.GetServiceConfig()
if config.Name == "" {
config.Name = "TestService"
}
if config.Version == "" {
config.Version = "1"
}
if config.Region == "unknown" {
config.Region = "Clearwater"
}
var err error
mlogger, err := skynet.NewMongoSemanticLogger("localhost", "skynet",
"log", config.UUID)
clogger := skynet.NewConsoleSemanticLogger("TestService", os.Stdout)
testService.Log = skynet.NewMultiSemanticLogger(mlogger, clogger)
config.Log = testService.Log
if err != nil {
config.Log.Trace("Could not connect to mongo db for logging")
}
service := service.CreateService(testService, config)
// handle panic so that we remove ourselves from the pool in case
// of catastrophic failure
defer func() {
service.Shutdown()
if err := recover(); err != nil {
log.Println("Unrecovered error occured: ", err)
}
}()
// If we pass false here service will not be Registered we could
// do other work/tasks by implementing the Started method and
// calling Register() when we're ready
waiter := service.Start(true)
// waiting on the sync.WaitGroup returned by service.Start() will
// wait for the service to finish running.
waiter.Wait()
}
// Daemon will run and maintain skynet services.
//
// Daemon will initially deploy those specified in the file given in
// the "-config" option
//
// Daemon will run the "SkynetDeployment" service, which can be used
// to remotely spawn new services on the host.
func main() {
config, args := skynet.GetServiceConfig()
config.Name = "SkynetDaemon"
config.Version = "1"
// skydaemon does not listen to admin RPC requests
config.AdminAddr = nil
var err error
mlogger, err := skynet.NewMongoSemanticLogger(config.MongoConfig.MongoHosts, "skynet",
"log", config.UUID)
clogger := skynet.NewConsoleSemanticLogger("skydaemon", os.Stdout)
config.Log = skynet.NewMultiSemanticLogger(mlogger, clogger)
if err != nil {
config.Log.Trace("Could not connect to mongo db for logging")
}
deployment := &SkynetDaemon{
Log: config.Log,
Services: map[string]*SubService{},
}
s := service.CreateService(deployment, config)
deployment.Service = s
// handle panic so that we remove ourselves from the pool in case of catastrophic failure
/*defer func() {
s.Shutdown()
if err := recover(); err != nil {
log.Println("Unrecovered error occured: ", err)
}
}()*/
if len(args) == 1 {
err := deployConfig(deployment, args[0])
if err != nil {
config.Log.Error(err.Error())
}
}
// If we pass false here service will not be Registered
// we could do other work/tasks by implementing the Started method and calling Register() when we're ready
s.Start(true).Wait()
}
func initializeConfig(c *skynet.ServiceConfig) {
if c.Log == nil {
c.Log = skynet.NewConsoleSemanticLogger("skynet", os.Stderr)
}
if c.Name == "" {
c.Name = "SkynetService"
}
if c.Version == "" {
c.Version = "1"
}
if c.Region == "" {
c.Region = "local"
}
if c.ServiceAddr == nil {
c.ServiceAddr = &skynet.BindAddr{}
}
if c.ServiceAddr.IPAddress == "" {
c.ServiceAddr.IPAddress = "127.0.0.1"
}
if c.ServiceAddr.Port == 0 {
c.ServiceAddr.Port = 9000
}
if c.ServiceAddr.MaxPort == 0 {
c.ServiceAddr.MaxPort = 9999
}
if c.DoozerConfig == nil {
c.DoozerConfig = &skynet.DoozerConfig{
Uri: "127.0.0.1:8046",
AutoDiscover: true,
}
}
if c.DoozerUpdateInterval == 0 {
c.DoozerUpdateInterval = 5 * time.Second
}
}
func main() {
logger := skynet.NewConsoleSemanticLogger("Sky", os.Stdout)
config = skynet.ClientConfig{
DoozerConfig: &skynet.DoozerConfig{},
Log: logger,
}
skynet.FlagsForClient(&config, flagset)
err := flagset.Parse(os.Args[1:])
if err != nil {
fmt.Println(err)
return
}
query := &skynet.Query{
DoozerConn: Doozer(config.DoozerConfig),
Service: *ServiceNameFlag,
Version: *VersionFlag,
Host: *HostFlag,
Region: *RegionFlag,
Port: *PortFlag,
}
fmt.Println(flagset.Args())
switch flagset.Arg(0) {
case "help", "h":
CommandLineHelp()
case "services":
ListServices(query)
case "hosts":
ListHosts(query)
case "regions":
ListRegions(query)
case "instances":
ListInstances(query)
case "versions":
ListServiceVersions(query)
case "topology":
PrintTopology(query)
case "register":
Register(query)
case "unregister":
Unregister(query)
case "stop":
Stop(query)
case "restart":
Restart(query)
case "deploy":
args := flagset.Args()
fmt.Println(args)
if len(args) < 2 {
fmt.Println("Usage: deploy <service path> <args>")
return
}
Deploy(query, args[1], args[2:]...)
case "cli":
InteractiveShell()
default:
CommandLineHelp()
}
}