9b69e40c93
This makes it easier to embed a registry instance inside another application. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
package main
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import (
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"flag"
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"fmt"
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_ "net/http/pprof"
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"os"
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log "github.com/Sirupsen/logrus"
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"github.com/docker/distribution/configuration"
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"github.com/docker/distribution/registry"
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_ "github.com/docker/distribution/registry/auth/htpasswd"
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_ "github.com/docker/distribution/registry/auth/silly"
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_ "github.com/docker/distribution/registry/auth/token"
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_ "github.com/docker/distribution/registry/proxy"
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_ "github.com/docker/distribution/registry/storage/driver/azure"
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_ "github.com/docker/distribution/registry/storage/driver/filesystem"
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_ "github.com/docker/distribution/registry/storage/driver/inmemory"
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_ "github.com/docker/distribution/registry/storage/driver/middleware/cloudfront"
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_ "github.com/docker/distribution/registry/storage/driver/oss"
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_ "github.com/docker/distribution/registry/storage/driver/s3"
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_ "github.com/docker/distribution/registry/storage/driver/swift"
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"github.com/docker/distribution/version"
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"golang.org/x/net/context"
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)
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var showVersion bool
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func init() {
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flag.BoolVar(&showVersion, "version", false, "show the version and exit")
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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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if showVersion {
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version.PrintVersion()
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return
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}
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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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registry, err := registry.NewRegistry(context.Background(), config)
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if err != nil {
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log.Fatalln(err)
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}
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err = registry.Serve()
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if 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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defer fp.Close()
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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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