mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-10 21:53:57 +08:00
Aleksa Sarai
7df64f8886
This allows for higher-level orchestrators to be able to have access to the master pty file descriptor without keeping the runC process running. This is key to having (detach && createTTY) with a _real_ pty created inside the container, which is then sent to a higher level orchestrator over an AF_UNIX socket. This patch is part of the console rewrite patchset. Signed-off-by: Aleksa Sarai <asarai@suse.de>
74 lines
2.2 KiB
Go
74 lines
2.2 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/urfave/cli"
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)
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var createCommand = cli.Command{
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Name: "create",
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Usage: "create a container",
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ArgsUsage: `<container-id>
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Where "<container-id>" is your name for the instance of the container that you
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are starting. The name you provide for the container instance must be unique on
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your host.`,
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Description: `The create command creates an instance of a container for a bundle. The bundle
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is a directory with a specification file named "` + specConfig + `" and a root
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filesystem.
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The specification file includes an args parameter. The args parameter is used
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to specify command(s) that get run when the container is started. To change the
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command(s) that get executed on start, edit the args parameter of the spec. See
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"runc spec --help" for more explanation.`,
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "bundle, b",
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Value: "",
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Usage: `path to the root of the bundle directory, defaults to the current directory`,
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},
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cli.StringFlag{
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Name: "console-socket",
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Value: "",
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Usage: "path to an AF_UNIX socket which will receive a file descriptor referencing the master end of the console's pseudoterminal",
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},
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cli.StringFlag{
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Name: "pid-file",
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Value: "",
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Usage: "specify the file to write the process id to",
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},
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cli.BoolFlag{
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Name: "no-pivot",
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Usage: "do not use pivot root to jail process inside rootfs. This should be used whenever the rootfs is on top of a ramdisk",
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},
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cli.BoolFlag{
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Name: "no-new-keyring",
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Usage: "do not create a new session keyring for the container. This will cause the container to inherit the calling processes session key",
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},
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},
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Action: func(context *cli.Context) error {
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if context.NArg() != 1 {
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fmt.Printf("Incorrect Usage.\n\n")
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cli.ShowCommandHelp(context, "create")
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return fmt.Errorf("runc: \"create\" requires exactly one argument")
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}
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if err := revisePidFile(context); err != nil {
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return err
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}
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spec, err := setupSpec(context)
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if err != nil {
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return err
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}
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status, err := startContainer(context, spec, true)
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if err != nil {
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return err
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}
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// exit with the container's exit status so any external supervisor is
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// notified of the exit with the correct exit status.
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os.Exit(status)
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return nil
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},
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}
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