mirror of https://github.com/containers/podman.git
110 lines
2.9 KiB
Go
110 lines
2.9 KiB
Go
package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"strings"
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"github.com/containers/libpod/cmd/podman/cliconfig"
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"github.com/containers/libpod/cmd/podman/shared/parse"
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"github.com/containers/libpod/pkg/adapter"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"golang.org/x/crypto/ssh/terminal"
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)
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var (
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loadCommand cliconfig.LoadValues
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loadDescription = "Loads an image from a locally stored archive (tar file) into container storage."
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_loadCommand = &cobra.Command{
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Use: "load [flags] [NAME[:TAG]]",
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Short: "Load an image from container archive",
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Long: loadDescription,
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RunE: func(cmd *cobra.Command, args []string) error {
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loadCommand.InputArgs = args
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loadCommand.GlobalFlags = MainGlobalOpts
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loadCommand.Remote = remoteclient
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return loadCmd(&loadCommand)
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},
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}
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)
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func init() {
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loadCommand.Command = _loadCommand
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loadCommand.SetHelpTemplate(HelpTemplate())
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loadCommand.SetUsageTemplate(UsageTemplate())
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flags := loadCommand.Flags()
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flags.StringVarP(&loadCommand.Input, "input", "i", "", "Read from specified archive file (default: stdin)")
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flags.BoolVarP(&loadCommand.Quiet, "quiet", "q", false, "Suppress the output")
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// Disabled flags for the remote client
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if !remote {
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flags.StringVar(&loadCommand.SignaturePolicy, "signature-policy", "", "Pathname of signature policy file (not usually used)")
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markFlagHidden(flags, "signature-policy")
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}
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}
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// loadCmd gets the image/file to be loaded from the command line
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// and calls loadImage to load the image to containers-storage
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func loadCmd(c *cliconfig.LoadValues) error {
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args := c.InputArgs
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var imageName string
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if len(args) == 1 {
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imageName = args[0]
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}
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if len(args) > 1 {
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return errors.New("too many arguments. Requires exactly 1")
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}
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runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
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if err != nil {
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return errors.Wrapf(err, "could not get runtime")
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}
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defer runtime.DeferredShutdown(false)
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if len(c.Input) > 0 {
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if err := parse.ValidateFileName(c.Input); err != nil {
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return err
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}
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} else {
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if terminal.IsTerminal(int(os.Stdin.Fd())) {
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return errors.Errorf("cannot read from terminal. Use command-line redirection or the --input flag.")
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}
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outFile, err := ioutil.TempFile("/var/tmp", "podman")
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if err != nil {
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return errors.Errorf("error creating file %v", err)
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}
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defer os.Remove(outFile.Name())
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defer outFile.Close()
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_, err = io.Copy(outFile, os.Stdin)
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if err != nil {
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return errors.Errorf("error copying file %v", err)
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}
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c.Input = outFile.Name()
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}
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names, err := runtime.LoadImage(getContext(), imageName, c)
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if err != nil {
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return err
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}
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if len(imageName) > 0 {
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split := strings.Split(names, ",")
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newImage, err := runtime.NewImageFromLocal(split[0])
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if err != nil {
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return err
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}
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if err := newImage.TagImage(imageName); err != nil {
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return errors.Wrapf(err, "error adding '%s' to image %q", imageName, newImage.InputName)
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}
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}
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fmt.Println("Loaded image(s): " + names)
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return nil
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}
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