mirror of
https://github.com/podman-container-tools/podman.git
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a6046dceef
Docker does not support this, and it is confusing what to do if the image has more then one tag. We are dropping support for this in podman 3.0 Fixes: https://github.com/containers/podman/issues/7387 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
package images
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import (
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"context"
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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/common/pkg/completion"
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"github.com/containers/podman/v2/cmd/podman/registry"
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"github.com/containers/podman/v2/cmd/podman/validate"
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"github.com/containers/podman/v2/pkg/domain/entities"
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"github.com/containers/podman/v2/pkg/util"
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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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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 [options]",
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Short: "Load image(s) from a tar archive",
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Long: loadDescription,
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RunE: load,
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Args: validate.NoArgs,
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ValidArgsFunction: completion.AutocompleteNone,
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}
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imageLoadCommand = &cobra.Command{
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Args: loadCommand.Args,
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Use: loadCommand.Use,
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Short: loadCommand.Short,
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Long: loadCommand.Long,
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ValidArgsFunction: loadCommand.ValidArgsFunction,
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RunE: loadCommand.RunE,
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}
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)
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var (
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loadOpts entities.ImageLoadOptions
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)
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
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Command: loadCommand,
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})
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loadFlags(loadCommand)
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
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Command: imageLoadCommand,
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Parent: imageCmd,
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})
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loadFlags(imageLoadCommand)
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}
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func loadFlags(cmd *cobra.Command) {
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flags := cmd.Flags()
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inputFlagName := "input"
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flags.StringVarP(&loadOpts.Input, inputFlagName, "i", "", "Read from specified archive file (default: stdin)")
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_ = cmd.RegisterFlagCompletionFunc(inputFlagName, completion.AutocompleteDefault)
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flags.BoolVarP(&loadOpts.Quiet, "quiet", "q", false, "Suppress the output")
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flags.StringVar(&loadOpts.SignaturePolicy, "signature-policy", "", "Pathname of signature policy file")
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_ = flags.MarkHidden("signature-policy")
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}
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func load(cmd *cobra.Command, args []string) error {
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if len(loadOpts.Input) > 0 {
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if _, err := os.Stat(loadOpts.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(util.Tmpdir(), "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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loadOpts.Input = outFile.Name()
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}
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response, err := registry.ImageEngine().Load(context.Background(), loadOpts)
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if err != nil {
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return err
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}
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fmt.Println("Loaded image(s): " + strings.Join(response.Names, ","))
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return nil
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}
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