func main() {
var app rest.Application
// Setup a new GlusterFS application
app = glusterfs.NewApp()
if app == nil {
fmt.Println("Unable to start application")
os.Exit(1)
}
// Create a router and do not allow any routes
// unless defined.
router := mux.NewRouter().StrictSlash(true)
err := app.SetRoutes(router)
if err != nil {
fmt.Println("Unable to create http server endpoints")
os.Exit(1)
}
// Use negroni to add middleware. Here we add two
// middlewares: Recovery and Logger, which come with
// Negroni
n := negroni.New(negroni.NewRecovery(), negroni.NewLogger())
n.UseHandler(router)
// Shutdown on CTRL-C signal
// For a better cleanup, we should shutdown the server and
signalch := make(chan os.Signal, 1)
signal.Notify(signalch, os.Interrupt)
go func() {
select {
case <-signalch:
fmt.Printf("Shutting down...\n")
// :TODO: Need to stop the server before closing the app
// Close the application
app.Close()
// Quit
os.Exit(0)
}
}()
// Start the server.
log.Fatal(http.ListenAndServe(":8080", n))
}
func main() {
flag.Parse()
printVersion()
// Quit here if all we needed to do was show version
if showVersion {
return
}
// Check configuration file was given
if configfile == "" {
fmt.Fprintln(os.Stderr, "Please provide configuration file")
os.Exit(1)
}
// Read configuration
fp, err := os.Open(configfile)
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: Unable to open config file %v: %v\n",
configfile,
err.Error())
os.Exit(1)
}
defer fp.Close()
configParser := json.NewDecoder(fp)
var options Config
if err = configParser.Decode(&options); err != nil {
fmt.Fprintf(os.Stderr, "ERROR: Unable to parse %v: %v\n",
configfile,
err.Error())
os.Exit(1)
}
// Substitue values using any set environment variables
setWithEnvVariables(&options)
// Go to the beginning of the file when we pass it
// to the application
fp.Seek(0, os.SEEK_SET)
// Setup a new GlusterFS application
var app apps.Application
glusterfsApp := glusterfs.NewApp(fp)
if glusterfsApp == nil {
fmt.Fprintln(os.Stderr, "ERROR: Unable to start application")
os.Exit(1)
}
app = glusterfsApp
// Add /hello router
router := mux.NewRouter()
router.Methods("GET").Path("/hello").Name("Hello").HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain; charset=UTF-8")
w.WriteHeader(http.StatusOK)
fmt.Fprint(w, "Hello from Heketi")
})
// Create a router and do not allow any routes
// unless defined.
heketiRouter := mux.NewRouter().StrictSlash(true)
err = app.SetRoutes(heketiRouter)
if err != nil {
fmt.Fprintln(os.Stderr, "ERROR: Unable to create http server endpoints")
os.Exit(1)
}
// Use negroni to add middleware. Here we add two
// middlewares: Recovery and Logger, which come with
// Negroni
n := negroni.New(negroni.NewRecovery(), negroni.NewLogger())
// Load authorization JWT middleware
if options.AuthEnabled {
jwtauth := middleware.NewJwtAuth(&options.JwtConfig)
if jwtauth == nil {
fmt.Fprintln(os.Stderr, "ERROR: Missing JWT information in config file")
os.Exit(1)
}
// Add Token parser
n.Use(jwtauth)
// Add application middleware check
n.UseFunc(app.Auth)
fmt.Println("Authorization loaded")
}
// Add all endpoints after the middleware was added
n.UseHandler(heketiRouter)
// Setup complete routing
router.NewRoute().Handler(n)
// Shutdown on CTRL-C signal
// For a better cleanup, we should shutdown the server and
signalch := make(chan os.Signal, 1)
signal.Notify(signalch, os.Interrupt, os.Kill, syscall.SIGINT, syscall.SIGTERM)
// Create a channel to know if the server was unable to start
done := make(chan bool)
go func() {
// Start the server.
fmt.Printf("Listening on port %v\n", options.Port)
err = http.ListenAndServe(":"+options.Port, router)
if err != nil {
fmt.Printf("ERROR: HTTP Server error: %v\n", err)
}
done <- true
}()
// Block here for signals and errors from the HTTP server
select {
case <-signalch:
case <-done:
}
fmt.Printf("Shutting down...\n")
// Shutdown the application
// :TODO: Need to shutdown the server
app.Close()
}
func main() {
flag.Parse()
printVersion()
// Quit here if all we needed to do was show version
if showVersion {
return
}
// Check configuration file was given
if configfile == "" {
fmt.Fprintln(os.Stderr, "Please provide configuration file")
os.Exit(1)
}
// Read configuration
fp, err := os.Open(configfile)
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to open config file %v: %v\n",
configfile,
err.Error())
os.Exit(1)
}
defer fp.Close()
configParser := json.NewDecoder(fp)
var options Config
if err = configParser.Decode(&options); err != nil {
fmt.Fprintf(os.Stderr, "Unable to parse %v: %v\n",
configfile,
err.Error())
os.Exit(1)
}
// Go to the beginning of the file when we pass it
// to the application
fp.Seek(0, os.SEEK_SET)
// Setup a new GlusterFS application
var app apps.Application
app = glusterfs.NewApp(fp)
if app == nil {
fmt.Println("Unable to start application")
os.Exit(1)
}
// Create a router and do not allow any routes
// unless defined.
router := mux.NewRouter().StrictSlash(true)
err = app.SetRoutes(router)
if err != nil {
fmt.Fprintln(os.Stderr, "Unable to create http server endpoints")
os.Exit(1)
}
// Use negroni to add middleware. Here we add two
// middlewares: Recovery and Logger, which come with
// Negroni
n := negroni.New(negroni.NewRecovery(), negroni.NewLogger())
// Load authorization JWT middleware
if options.AuthEnabled {
jwtauth := middleware.NewJwtAuth(&options.JwtConfig)
if jwtauth == nil {
fmt.Fprintln(os.Stderr, "Missing JWT information in config file")
os.Exit(1)
}
// Add Token parser
n.Use(jwtauth)
// Add application middleware check
n.UseFunc(app.Auth)
fmt.Println("Authorization loaded")
}
// Setup routes
n.UseHandler(router)
// Shutdown on CTRL-C signal
// For a better cleanup, we should shutdown the server and
signalch := make(chan os.Signal, 1)
signal.Notify(signalch, os.Interrupt)
go func() {
select {
case <-signalch:
fmt.Printf("Shutting down...\n")
// :TODO: Need to stop the server before closing the app
// Close the application
app.Close()
// Quit
os.Exit(0)
}
}()
// Start the server.
log.Fatal(http.ListenAndServe(":"+options.Port, n))
}