containerd/cmd/ctr/main.go

package main

import (
	"fmt"
	"os"

	"github.com/docker/containerd"
	"github.com/sirupsen/logrus"
	"github.com/urfave/cli"
)

func main() {
	app := cli.NewApp()
	app.Name = "ctr"
	app.Version = containerd.Version
	app.Usage = `
		__
  _____/ /______
 / ___/ __/ ___/
/ /__/ /_/ /
\___/\__/_/

containerd client
`
	app.Flags = []cli.Flag{
		cli.BoolFlag{
			Name:  "debug",
			Usage: "enable debug output in logs",
		},
		cli.StringFlag{
			Name:  "socket, s",
			Usage: "socket path for containerd's GRPC server",
			Value: "/run/containerd/containerd.sock",
		},
	}
	app.Commands = []cli.Command{
		runCommand,
		execCommand,
	}
	app.Before = func(context *cli.Context) error {
		if context.GlobalBool("debug") {
			logrus.SetLevel(logrus.DebugLevel)
		}
		return nil
	}
	if err := app.Run(os.Args); err != nil {
		fmt.Fprintf(os.Stderr, "containerd: %s\n", err)
		os.Exit(1)
	}
}