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a1c669d3ae
It holds necessary state plus additional information relative to the context which we are being run to (e.g. if we are in a terminal or not). Besides in the future we can use it also as a contextual logger to provide more smart logging capabilities. This also replace the general global configuration instance that previously was share between the core components.
112 lines
3.5 KiB
Go
112 lines
3.5 KiB
Go
// Copyright © 2020-2021 Ettore Di Giacinto <mudler@gentoo.org>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/docker/docker/api/types"
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"github.com/docker/go-units"
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"github.com/mudler/luet/cmd/util"
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"github.com/mudler/luet/pkg/helpers/docker"
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"github.com/spf13/cobra"
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)
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func NewUnpackCommand() *cobra.Command {
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c := &cobra.Command{
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Use: "unpack image path",
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Short: "Unpack a docker image natively",
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Long: `unpack doesn't need the docker daemon to run, and unpacks a docker image in the specified directory:
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luet util unpack golang:alpine /alpine
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`,
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PreRun: func(cmd *cobra.Command, args []string) {
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if len(args) != 2 {
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util.DefaultContext.Fatal("Expects an image and a path")
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}
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},
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Run: func(cmd *cobra.Command, args []string) {
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image := args[0]
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destination, err := filepath.Abs(args[1])
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if err != nil {
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util.DefaultContext.Error("Invalid path %s", destination)
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os.Exit(1)
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}
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verify, _ := cmd.Flags().GetBool("verify")
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user, _ := cmd.Flags().GetString("auth-username")
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pass, _ := cmd.Flags().GetString("auth-password")
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authType, _ := cmd.Flags().GetString("auth-type")
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server, _ := cmd.Flags().GetString("auth-server-address")
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identity, _ := cmd.Flags().GetString("auth-identity-token")
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registryToken, _ := cmd.Flags().GetString("auth-registry-token")
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temp, err := util.DefaultContext.Config.GetSystem().TempDir("contentstore")
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if err != nil {
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util.DefaultContext.Fatal("Cannot create a tempdir", err.Error())
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}
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util.DefaultContext.Info("Downloading", image, "to", destination)
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auth := &types.AuthConfig{
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Username: user,
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Password: pass,
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ServerAddress: server,
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Auth: authType,
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IdentityToken: identity,
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RegistryToken: registryToken,
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}
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info, err := docker.DownloadAndExtractDockerImage(temp, image, destination, auth, verify)
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if err != nil {
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util.DefaultContext.Error(err.Error())
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os.Exit(1)
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}
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util.DefaultContext.Info(fmt.Sprintf("Pulled: %s %s", info.Target.Digest, info.Name))
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util.DefaultContext.Info(fmt.Sprintf("Size: %s", units.BytesSize(float64(info.Target.Size))))
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},
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}
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c.Flags().String("auth-username", "", "Username to authenticate to registry/notary")
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c.Flags().String("auth-password", "", "Password to authenticate to registry")
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c.Flags().String("auth-type", "", "Auth type")
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c.Flags().String("auth-server-address", "", "Authentication server address")
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c.Flags().String("auth-identity-token", "", "Authentication identity token")
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c.Flags().String("auth-registry-token", "", "Authentication registry token")
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c.Flags().Bool("verify", false, "Verify signed images to notary before to pull")
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return c
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}
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var utilGroup = &cobra.Command{
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Use: "util [command] [OPTIONS]",
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Short: "General luet internal utilities exposed",
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}
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func init() {
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RootCmd.AddCommand(utilGroup)
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utilGroup.AddCommand(
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NewUnpackCommand(),
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)
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}
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