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Merge pull request #3394 from nalind/copy-release-1.21
[release-1.21] add and use a "copy" helper instead of podman load/save
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -59,3 +59,7 @@ default_capabilities = [ | |
| "SETUID", | ||
| "SYS_CHROOT", | ||
| ] | ||
|
|
||
| default_sysctls = [ | ||
| "net.ipv4.ping_group_range=0 0", | ||
| ] | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "os" | ||
|
|
||
| "github.com/containers/buildah" | ||
| cp "github.com/containers/image/v5/copy" | ||
| "github.com/containers/image/v5/signature" | ||
| imageStorage "github.com/containers/image/v5/storage" | ||
| "github.com/containers/image/v5/transports/alltransports" | ||
| "github.com/containers/image/v5/types" | ||
| "github.com/containers/storage" | ||
| "github.com/containers/storage/pkg/unshare" | ||
| "github.com/pkg/errors" | ||
| "github.com/sirupsen/logrus" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| func main() { | ||
| var storeOptions storage.StoreOptions | ||
| var systemContext types.SystemContext | ||
| var logLevel string | ||
|
|
||
| if buildah.InitReexec() { | ||
| return | ||
| } | ||
|
|
||
| unshare.MaybeReexecUsingUserNamespace(false) | ||
|
|
||
| rootCmd := &cobra.Command{ | ||
| Use: "copy [flags] source destination", | ||
| Long: "copies an image", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| if err := cobra.ExactArgs(2)(cmd, args); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| level, err := logrus.ParseLevel(logLevel) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| logrus.SetLevel(level) | ||
|
|
||
| store, err := storage.GetStore(storeOptions) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| imageStorage.Transport.SetStore(store) | ||
|
|
||
| if len(args) < 1 { | ||
| return errors.Wrapf(err, "no source name provided") | ||
| } | ||
| src, err := alltransports.ParseImageName(args[0]) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error parsing source name") | ||
| } | ||
| if len(args) < 1 { | ||
| return errors.Wrapf(err, "no destination name provided") | ||
| } | ||
| dest, err := alltransports.ParseImageName(args[1]) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error parsing destination name") | ||
| } | ||
|
|
||
| policy, err := signature.DefaultPolicy(&systemContext) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error reading signature policy") | ||
| } | ||
| policyContext, err := signature.NewPolicyContext(policy) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "error creating new signature policy context") | ||
| } | ||
| defer func() { | ||
| if err := policyContext.Destroy(); err != nil { | ||
| logrus.Error(errors.Wrapf(err, "error destroying signature policy context")) | ||
| } | ||
| }() | ||
|
|
||
| options := cp.Options{ | ||
| ReportWriter: os.Stdout, | ||
| SourceCtx: &systemContext, | ||
| DestinationCtx: &systemContext, | ||
| } | ||
| if _, err = cp.Image(context.TODO(), policyContext, dest, src, &options); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| defer func() { | ||
| _, err := store.Shutdown(false) | ||
| if err != nil { | ||
| logrus.Error(err) | ||
| } | ||
| }() | ||
| return nil | ||
| }, | ||
| } | ||
|
|
||
| rootCmd.PersistentFlags().StringVar(&storeOptions.GraphRoot, "root", "", "storage root") | ||
| rootCmd.PersistentFlags().StringVar(&storeOptions.RunRoot, "runroot", "", "runtime root") | ||
| rootCmd.PersistentFlags().StringVar(&storeOptions.GraphDriverName, "storage-driver", "", "storage driver") | ||
| rootCmd.PersistentFlags().StringSliceVar(&storeOptions.GraphDriverOptions, "storage-opt", nil, "storage option") | ||
| rootCmd.PersistentFlags().StringVar(&systemContext.SystemRegistriesConfPath, "registries-conf", "", "location of registries.conf") | ||
| rootCmd.PersistentFlags().StringVar(&systemContext.SystemRegistriesConfDirPath, "registries-conf-dir", "", "location of registries.d") | ||
| rootCmd.PersistentFlags().StringVar(&systemContext.SignaturePolicyPath, "signature-policy", "", "`pathname` of signature policy file") | ||
| rootCmd.PersistentFlags().StringVar(&systemContext.UserShortNameAliasConfPath, "short-name-alias-conf", "", "`pathname` of short name alias cache file (not usually used)") | ||
| rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "warn", "logging level") | ||
| if err := rootCmd.Execute(); err != nil { | ||
| os.Exit(1) | ||
| } | ||
| } |
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