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main.go
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main.go
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package main
import (
"fmt"
"os"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/config"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/log"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/metrics"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/s3client"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/server"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/tracing"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/version"
"github.com/oxyno-zeta/s3-proxy/pkg/s3-proxy/webhook"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
)
// Main package
func startServer(mainConfDir string) {
// Create new logger
logger := log.NewLogger()
// Create configuration manager
cfgManager := config.NewManager(logger)
// Load configuration
err := cfgManager.Load(mainConfDir)
if err != nil {
logger.Fatal(err)
}
// Get configuration
cfg := cfgManager.GetConfig()
// Configure logger
err = logger.Configure(cfg.Log.Level, cfg.Log.Format, cfg.Log.FilePath)
if err != nil {
logger.Fatal(err)
}
// Watch change for logger (special case)
cfgManager.AddOnChangeHook(func() {
// Get configuration
cfg := cfgManager.GetConfig()
// Configure logger
err = logger.Configure(cfg.Log.Level, cfg.Log.Format, cfg.Log.FilePath)
if err != nil {
logger.Fatal(err)
}
})
logger.Debug("Configuration successfully loaded and logger configured")
// Getting version
v := version.GetVersion()
logger.Infof("Starting s3-proxy version: %s (git commit: %s) built on %s", v.Version, v.GitCommit, v.BuildDate)
// Generate metrics instance
metricsCtx := metrics.NewClient()
// Generate tracing service instance
tracingSvc, err := tracing.New(cfgManager, logger)
// Check error
if err != nil {
logger.Fatal(err)
}
// Prepare on reload hook
cfgManager.AddOnChangeHook(func() {
err2 := tracingSvc.Reload()
if err2 != nil {
logger.Fatal(err2)
}
})
// Create S3 client manager
s3clientManager := s3client.NewManager(cfgManager, metricsCtx)
// Log
logger.Info("Load S3 clients for all targets")
// Load configuration
err = s3clientManager.Load()
// Check error
if err != nil {
logger.Fatal(err)
}
// Prepare on reload hook
cfgManager.AddOnChangeHook(func() {
logger.Info("Reload S3 clients for all targets")
// Load
err2 := s3clientManager.Load()
// Check error
if err2 != nil {
logger.Fatal(err2)
}
})
// Create webhook manager
webhookManager := webhook.NewManager(cfgManager, metricsCtx)
// Load
err = webhookManager.Load()
// Check error
if err != nil {
logger.Fatal(err)
}
// Prepare on reload hook
cfgManager.AddOnChangeHook(func() {
logger.Info("Reload webhook clients for all targets")
// Load
err2 := webhookManager.Load()
// Check error
if err2 != nil {
logger.Fatal(err2)
}
})
// Create internal server
intSvr := server.NewInternalServer(logger, cfgManager, metricsCtx)
// Generate server
err = intSvr.GenerateServer()
if err != nil {
logger.Fatal(err)
}
// Create server
svr := server.NewServer(logger, cfgManager, metricsCtx, tracingSvc, s3clientManager, webhookManager)
// Generate server
err = svr.GenerateServer()
if err != nil {
logger.Fatal(err)
}
var g errgroup.Group
g.Go(svr.Listen)
g.Go(intSvr.Listen)
if err := g.Wait(); err != nil {
logger.Fatal(err)
}
}
func main() {
var configFolder string
var rootCmd = &cobra.Command{
Use: "s3-proxy",
Short: "S3 Reverse Proxy",
Long: "S3 Reverse Proxy with GET, PUT and DELETE methods and authentication (OpenID Connect and Basic Auth)",
Run: func(_ *cobra.Command, _ []string) {
startServer(configFolder)
},
}
var versionCmd = &cobra.Command{
Use: "version",
Short: "Print the version number of s3-proxy",
Run: func(_ *cobra.Command, _ []string) {
v := version.GetVersion()
fmt.Printf("version: %s (git commit: %s) built on %s", v.Version, v.GitCommit, v.BuildDate)
},
}
rootCmd.AddCommand(versionCmd)
rootCmd.PersistentFlags().StringVar(&configFolder, "config", "conf/", "Config folder (default is <Current Working Directory>/conf/)")
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}