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main.go
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main.go
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package main
import (
"context"
"flag"
"fmt"
"os"
"os/signal"
"strings"
"syscall"
"time"
"github.com/genuinetools/pkg/cli"
"github.com/genuinetools/reg/registry"
"github.com/genuinetools/reg/repoutils"
"github.com/genuinetools/reg/version"
"github.com/sirupsen/logrus"
)
var (
insecure bool
forceNonSSL bool
skipPing bool
timeout time.Duration
username string
password string
debug bool
)
func main() {
// Create a new cli program.
p := cli.NewProgram()
p.Name = "reg"
p.Description = "Docker registry v2 client"
// Set the GitCommit and Version.
p.GitCommit = version.GITCOMMIT
p.Version = version.VERSION
// Build the list of available commands.
p.Commands = []cli.Command{
&digestCommand{},
&layerCommand{},
&listCommand{},
&manifestCommand{},
&removeCommand{},
&serverCommand{},
&tagsCommand{},
&vulnsCommand{},
}
// Setup the global flags.
p.FlagSet = flag.NewFlagSet("global", flag.ExitOnError)
p.FlagSet.BoolVar(&insecure, "insecure", false, "do not verify tls certificates")
p.FlagSet.BoolVar(&insecure, "k", false, "do not verify tls certificates")
p.FlagSet.BoolVar(&forceNonSSL, "force-non-ssl", false, "force allow use of non-ssl")
p.FlagSet.BoolVar(&forceNonSSL, "f", false, "force allow use of non-ssl")
p.FlagSet.BoolVar(&skipPing, "skip-ping", false, "skip pinging the registry while establishing connection")
p.FlagSet.DurationVar(&timeout, "timeout", time.Minute, "timeout for HTTP requests")
p.FlagSet.StringVar(&username, "username", "", "username for the registry")
p.FlagSet.StringVar(&username, "u", "", "username for the registry")
p.FlagSet.StringVar(&password, "password", "", "password for the registry")
p.FlagSet.StringVar(&password, "p", "", "password for the registry")
p.FlagSet.BoolVar(&debug, "d", false, "enable debug logging")
// Set the before function.
p.Before = func(ctx context.Context) error {
// On ^C, or SIGTERM handle exit.
signals := make(chan os.Signal, 0)
signal.Notify(signals, os.Interrupt)
signal.Notify(signals, syscall.SIGTERM)
_, cancel := context.WithCancel(ctx)
go func() {
for sig := range signals {
cancel()
logrus.Infof("Received %s, exiting.", sig.String())
os.Exit(0)
}
}()
// Set the log level.
if debug {
logrus.SetLevel(logrus.DebugLevel)
}
return nil
}
// Run our program.
p.Run()
}
func createRegistryClient(domain string) (*registry.Registry, error) {
auth, err := repoutils.GetAuthConfig(username, password, domain)
if err != nil {
return nil, err
}
// Prevent non-ssl unless explicitly forced
if !forceNonSSL && strings.HasPrefix(auth.ServerAddress, "http:") {
return nil, fmt.Errorf("Attempted to use insecure protocol! Use force-non-ssl option to force")
}
// Create the registry client.
return registry.New(auth, registry.Opt{
Insecure: insecure,
Debug: debug,
SkipPing: skipPing,
Timeout: timeout,
})
}