109 lines
2.8 KiB
Go
109 lines
2.8 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/Sirupsen/logrus"
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"github.com/codegangsta/cli"
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"github.com/opencontainers/specs"
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)
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const (
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version = "0.0.7"
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specConfig = "config.json"
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runtimeConfig = "runtime.json"
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usage = `Open Container Initiative runtime
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runc is a command line client for running applications packaged according to
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the Open Container Format (OCF) and is a compliant implementation of the
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Open Container Initiative specification.
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runc integrates well with existing process supervisors to provide a production
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container runtime environment for applications. It can be used with your
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existing process monitoring tools and the container will be spawned as a
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direct child of the process supervisor.
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After creating config files for your root filesystem with runc, you can execute
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a container in your shell by running:
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# cd /mycontainer
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# runc start [ -b bundle ]
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If not specified, the default value for the 'bundle' is the current directory.
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'Bundle' is the directory where '` + specConfig + `' and '` + runtimeConfig + `' must be located.`
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)
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func main() {
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app := cli.NewApp()
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app.Name = "runc"
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app.Usage = usage
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app.Version = fmt.Sprintf("%s\nspec version %s", version, specs.Version)
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app.Flags = []cli.Flag{
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cli.StringFlag{
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Name: "id",
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Value: getDefaultID(),
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Usage: "specify the ID to be used for the container",
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},
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cli.BoolFlag{
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Name: "debug",
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Usage: "enable debug output for logging",
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},
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cli.StringFlag{
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Name: "log",
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Usage: "set the log file path where internal debug information is written",
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},
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cli.StringFlag{
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Name: "log-format",
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Value: "text",
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Usage: "set the format used by logs ('text' (default), or 'json')",
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},
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cli.StringFlag{
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Name: "root",
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Value: specs.LinuxStateDirectory,
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Usage: "root directory for storage of container state (this should be located in tmpfs)",
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},
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cli.StringFlag{
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Name: "criu",
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Value: "criu",
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Usage: "path to the criu binary used for checkpoint and restore",
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},
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}
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app.Commands = []cli.Command{
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startCommand,
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checkpointCommand,
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eventsCommand,
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restoreCommand,
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killCommand,
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specCommand,
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pauseCommand,
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resumeCommand,
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execCommand,
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listCommand,
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}
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app.Before = func(context *cli.Context) error {
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if context.GlobalBool("debug") {
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logrus.SetLevel(logrus.DebugLevel)
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}
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if path := context.GlobalString("log"); path != "" {
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f, err := os.Create(path)
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if err != nil {
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return err
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}
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logrus.SetOutput(f)
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}
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switch context.GlobalString("log-format") {
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case "text":
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// retain logrus's default.
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case "json":
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logrus.SetFormatter(new(logrus.JSONFormatter))
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default:
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logrus.Fatalf("unknown log-format %q", context.GlobalString("log-format"))
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}
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return nil
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}
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if err := app.Run(os.Args); err != nil {
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logrus.Fatal(err)
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}
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}
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