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create.go
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create.go
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// Copyright 2014 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"os"
"github.com/urfave/cli"
)
var createCommand = cli.Command{
Name: "create",
Usage: "create a container",
ArgsUsage: `<container-id>
Where "<container-id>" is your name for the instance of the container that you
are starting. The name you provide for the container instance must be unique on
your host.`,
Description: `The create command creates an instance of a container for a bundle. The bundle
is a directory with a specification file named "` + specConfig + `" and a root
filesystem.
The specification file includes an args parameter. The args parameter is used
to specify command(s) that get run when the container is started.
`,
Flags: []cli.Flag{
cli.StringFlag{
Name: "bundle, b",
Value: "",
Usage: `path to the root of the bundle directory, defaults to the current directory`,
},
cli.StringFlag{
Name: "console-socket",
Value: "",
Usage: "path to an AF_UNIX socket which will receive a file descriptor referencing the master end of the console's pseudoterminal",
},
cli.StringFlag{
Name: "pid-file",
Value: "",
Usage: "specify the file to write the process id to",
},
cli.BoolFlag{
Name: "no-pivot",
Usage: "do not use pivot root to jail process inside rootfs. This should be used whenever the rootfs is on top of a ramdisk",
},
cli.BoolFlag{
Name: "no-new-keyring",
Usage: "do not create a new session keyring for the container. This will cause the container to inherit the calling processes session key",
},
cli.IntFlag{
Name: "preserve-fds",
Usage: "Pass N additional file descriptors to the container (stdio + $LISTEN_FDS + N in total)",
},
},
Action: func(context *cli.Context) error {
// TODO: Implement
spec, err := setupSpec(context)
if err != nil {
fatal(err)
}
status, err := startContainer(context, spec, true)
if err != nil {
fatal(err)
}
// exit with the container's exit status so any external supervisor is
// notified of the exit with the correct exit status.
os.Exit(status)
return nil
},
}