func main() {
var (
err error
closeChan = make(chan bool)
)
leapsConfig := LeapsConfig{
NumProcesses: runtime.NumCPU(),
LoggerConfig: log.DefaultLoggerConfig(),
StatsConfig: log.DefaultStatsConfig(),
RiemannConfig: log.NewRiemannClientConfig(),
StoreConfig: store.NewConfig(),
AuthenticatorConfig: auth.NewConfig(),
CuratorConfig: lib.DefaultCuratorConfig(),
HTTPServerConfig: net.DefaultHTTPServerConfig(),
InternalServerConfig: net.NewInternalServerConfig(),
StatsServerConfig: log.DefaultStatsServerConfig(),
}
// A list of default config paths to check for if not explicitly defined
defaultPaths := []string{}
/* If we manage to get the path of our executable then we want to try and find config files
* relative to that path, we always check from the parent folder since we assume leaps is
* stored within the bin folder.
*/
if executablePath, err := path.BinaryPath(); err == nil {
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config.yaml"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config", "leaps.yaml"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config.json"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config", "leaps.json"))
}
defaultPaths = append(defaultPaths, []string{
filepath.Join(".", "leaps.yaml"),
filepath.Join(".", "leaps.json"),
"/etc/leaps.yaml",
"/etc/leaps.json",
"/etc/leaps/config.yaml",
"/etc/leaps/config.json",
}...)
// Load configuration etc
if !util.Bootstrap(&leapsConfig, defaultPaths...) {
return
}
if len(*sharePathOverride) > 0 {
leapsConfig.AuthenticatorConfig.FileConfig.SharePath = *sharePathOverride
leapsConfig.StoreConfig.StoreDirectory = *sharePathOverride
}
runtime.GOMAXPROCS(leapsConfig.NumProcesses)
// Logging and stats aggregation
logger := log.NewLogger(os.Stdout, leapsConfig.LoggerConfig)
stats := log.NewStats(leapsConfig.StatsConfig)
if riemannClient, err := log.NewRiemannClient(leapsConfig.RiemannConfig); err == nil {
logger.UseRiemann(riemannClient)
stats.UseRiemann(riemannClient)
defer riemannClient.Close()
} else if err != log.ErrEmptyConfigAddress {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Riemann client error: %v\n", err))
return
}
defer stats.Close()
fmt.Printf("Launching a leaps instance, use CTRL+C to close.\n\n")
// Document storage engine
documentStore, err := store.Factory(leapsConfig.StoreConfig)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Document store error: %v\n", err))
return
}
// Authenticator
authenticator, err := auth.Factory(leapsConfig.AuthenticatorConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Authenticator error: %v\n", err))
return
}
// Curator of documents
curator, err := lib.NewCurator(leapsConfig.CuratorConfig, logger, stats, authenticator, documentStore)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Curator error: %v\n", err))
return
}
defer curator.Close()
// HTTP API
leapHTTP, err := net.CreateHTTPServer(curator, leapsConfig.HTTPServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("HTTP error: %v\n", err))
return
}
defer leapHTTP.Stop()
go func() {
if httperr := leapHTTP.Listen(); httperr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Http listen error: %v\n", httperr))
}
closeChan <- true
}()
var adminRegister register.EndpointRegister
// Internal admin HTTP API
if 0 < len(leapsConfig.InternalServerConfig.Address) {
adminHTTP, err := net.NewInternalServer(curator, leapsConfig.InternalServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Admin HTTP error: %v\n", err))
return
}
adminRegister = adminHTTP
go func() {
if httperr := adminHTTP.Listen(); httperr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Admin HTTP listen error: %v\n", httperr))
}
closeChan <- true
}()
}
// Register for allowing other components to set API endpoints.
register := newEndpointsRegister(leapHTTP, adminRegister)
if err = authenticator.RegisterHandlers(register); err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Register authentication endpoints failed: %v\n", err))
return
}
// Internal Statistics HTTP API
statsServer, err := log.NewStatsServer(leapsConfig.StatsServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Stats error: %v\n", err))
return
}
go func() {
if statserr := statsServer.Listen(); statserr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Stats server listen error: %v\n", statserr))
}
}()
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
// Wait for termination signal
select {
case <-sigChan:
case <-closeChan:
}
}
func authAndStore(logger *log.Logger, stats *log.Stats) (auth.Authenticator, store.Store) {
storage, _ := store.Factory(store.NewConfig())
auth, _ := auth.Factory(auth.NewConfig(), logger, stats)
return auth, storage
}