package main import ( "fmt" "os" "runtime/pprof" "github.com/containers/storage/pkg/reexec" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/urfave/cli" ) // This is populated by the Makefile from the VERSION file // in the repository var kpodVersion = "" func main() { debug := false cpuProfile := false if reexec.Init() { return } app := cli.NewApp() app.Name = "kpod" app.Usage = "manage pods and images" var v string if kpodVersion != "" { v = kpodVersion } app.Version = v app.Commands = []cli.Command{ attachCommand, createCommand, diffCommand, execCommand, exportCommand, historyCommand, imagesCommand, importCommand, infoCommand, inspectCommand, killCommand, loadCommand, loginCommand, logoutCommand, logsCommand, mountCommand, pauseCommand, psCommand, pullCommand, pushCommand, rmCommand, rmiCommand, runCommand, saveCommand, startCommand, statsCommand, stopCommand, tagCommand, umountCommand, unpauseCommand, versionCommand, waitCommand, } app.Before = func(c *cli.Context) error { logLevel := c.GlobalString("log-level") if logLevel != "" { level, err := logrus.ParseLevel(logLevel) if err != nil { return err } logrus.SetLevel(level) } if logLevel == "debug" { debug = true } if c.GlobalIsSet("cpu-profile") { f, err := os.Create(c.GlobalString("cpu-profile")) if err != nil { return errors.Wrapf(err, "unable to create cpu profiling file %s", c.GlobalString("cpu-profile")) } cpuProfile = true pprof.StartCPUProfile(f) } return nil } app.After = func(*cli.Context) error { // called by Run() when the command handler succeeds shutdownStores() if cpuProfile { pprof.StopCPUProfile() } return nil } cli.OsExiter = func(code int) { // called by Run() when the command fails, bypassing After() shutdownStores() os.Exit(code) } app.Flags = []cli.Flag{ cli.StringFlag{ Name: "config, c", Usage: "path of a config file detailing container server configuration options", }, cli.StringFlag{ Name: "conmon", Usage: "path of the conmon binary", }, cli.StringFlag{ Name: "cpu-profile", Usage: "path for the cpu profiling results", }, cli.StringFlag{ Name: "log-level", Usage: "log messages above specified level: debug, info, warn, error (default), fatal or panic", Value: "error", }, cli.StringFlag{ Name: "root", Usage: "path to the root directory in which data, including images, is stored", }, cli.StringFlag{ Name: "runroot", Usage: "path to the 'run directory' where all state information is stored", }, cli.StringFlag{ Name: "runtime", Usage: "path to the OCI-compatible binary used to run containers, default is /usr/bin/runc", }, cli.StringFlag{ Name: "storage-driver, s", Usage: "select which storage driver is used to manage storage of images and containers (default is overlay)", }, cli.StringSliceFlag{ Name: "storage-opt", Usage: "used to pass an option to the storage driver", }, } if err := app.Run(os.Args); err != nil { if debug { logrus.Errorf(err.Error()) } else { fmt.Fprintln(os.Stderr, err.Error()) } cli.OsExiter(1) } }