| package main |
| |
| import ( |
| "fmt" |
| "os" |
| |
| "github.com/opencontainers/runc/libcontainer" |
| "github.com/urfave/cli" |
| ) |
| |
| var startCommand = cli.Command{ |
| Name: "start", |
| Usage: "executes the user defined process in a created container", |
| ArgsUsage: `<container-id> [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 start command executes the user defined process in a created container .`, |
| Action: func(context *cli.Context) error { |
| hasError := false |
| if !context.Args().Present() { |
| return fmt.Errorf("runc: \"start\" requires a minimum of 1 argument") |
| } |
| |
| factory, err := loadFactory(context) |
| if err != nil { |
| return err |
| } |
| |
| for _, id := range context.Args() { |
| container, err := factory.Load(id) |
| if err != nil { |
| fmt.Fprintf(os.Stderr, "container %s does not exist\n", id) |
| hasError = true |
| continue |
| } |
| status, err := container.Status() |
| if err != nil { |
| fmt.Fprintf(os.Stderr, "status for %s: %v\n", id, err) |
| hasError = true |
| continue |
| } |
| switch status { |
| case libcontainer.Created: |
| if err := container.Exec(); err != nil { |
| fmt.Fprintf(os.Stderr, "start for %s failed: %v\n", id, err) |
| hasError = true |
| } |
| case libcontainer.Stopped: |
| fmt.Fprintln(os.Stderr, "cannot start a container that has run and stopped") |
| hasError = true |
| case libcontainer.Running: |
| fmt.Fprintln(os.Stderr, "cannot start an already running container") |
| hasError = true |
| default: |
| fmt.Fprintf(os.Stderr, "cannot start a container in the %s state\n", status) |
| hasError = true |
| } |
| } |
| |
| if hasError { |
| return fmt.Errorf("one or more of container start failed") |
| } |
| return nil |
| }, |
| } |