forked from TrueCloudLab/distribution
85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
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package main
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import (
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"flag"
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"fmt"
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"net/http"
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_ "net/http/pprof"
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"os"
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"github.com/gorilla/handlers"
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log "github.com/Sirupsen/logrus"
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"github.com/docker/docker-registry"
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"github.com/docker/docker-registry/configuration"
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_ "github.com/docker/docker-registry/storagedriver/filesystem"
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_ "github.com/docker/docker-registry/storagedriver/inmemory"
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)
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func main() {
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flag.Usage = usage
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flag.Parse()
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config, err := resolveConfiguration()
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if err != nil {
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fatalf("configuration error: %v", err)
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}
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app := registry.NewApp(*config)
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handler := handlers.CombinedLoggingHandler(os.Stdout, app)
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log.SetLevel(logLevel(config.Loglevel))
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log.Infof("listening on %v", config.HTTP.Addr)
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if err := http.ListenAndServe(config.HTTP.Addr, handler); err != nil {
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log.Fatalln(err)
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}
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}
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func usage() {
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fmt.Fprintln(os.Stderr, "usage:", os.Args[0], "<config>")
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flag.PrintDefaults()
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}
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func fatalf(format string, args ...interface{}) {
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fmt.Fprintf(os.Stderr, format+"\n", args...)
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usage()
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os.Exit(1)
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}
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func resolveConfiguration() (*configuration.Configuration, error) {
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var configurationPath string
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if flag.NArg() > 0 {
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configurationPath = flag.Arg(0)
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} else if os.Getenv("REGISTRY_CONFIGURATION_PATH") != "" {
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configurationPath = os.Getenv("REGISTRY_CONFIGURATION_PATH")
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}
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if configurationPath == "" {
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return nil, fmt.Errorf("configuration path unspecified")
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}
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fp, err := os.Open(configurationPath)
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if err != nil {
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return nil, err
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}
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config, err := configuration.Parse(fp)
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if err != nil {
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return nil, fmt.Errorf("error parsing %s: %v", configurationPath, err)
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}
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return config, nil
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}
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func logLevel(level configuration.Loglevel) log.Level {
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l, err := log.ParseLevel(string(level))
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if err != nil {
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log.Warnf("error parsing level %q: %v", level, err)
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l = log.InfoLevel
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}
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return l
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}
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