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move PushImage and PullImage to libkpod/image

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Signed-off-by: Ryan Cole <rcyoalne@gmail.com>
This commit is contained in:
Ryan Cole 2017-07-23 19:12:36 -04:00
parent 14864f820e
commit df7536e3c0
5 changed files with 163 additions and 154 deletions
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83
cmd/kpod/push.go
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@ -2,15 +2,9 @@ package main
import (
"fmt"
"io"
"os"
"syscall"
cp "github.com/containers/image/copy"
"github.com/containers/image/manifest"
"github.com/containers/image/transports/alltransports"
"github.com/containers/image/types"
"github.com/containers/storage"
"github.com/containers/storage/pkg/archive"
"github.com/kubernetes-incubator/cri-o/libkpod/common"
libkpodimage "github.com/kubernetes-incubator/cri-o/libkpod/image"
@ -70,32 +64,6 @@ var (
}
)
type pushOptions struct {
// Compression specifies the type of compression which is applied to
// layer blobs. The default is to not use compression, but
// archive.Gzip is recommended.
Compression archive.Compression
// SignaturePolicyPath specifies an override location for the signature
// policy which should be used for verifying the new image as it is
// being written. Except in specific circumstances, no value should be
// specified, indicating that the shared, system-wide default policy
// should be used.
SignaturePolicyPath string
// ReportWriter is an io.Writer which will be used to log the writing
// of the new image.
ReportWriter io.Writer
// Store is the local storage store which holds the source image.
Store storage.Store
// DockerRegistryOptions encapsulates settings that affect how we
// connect or authenticate to a remote registry to which we want to
// push the image.
common.DockerRegistryOptions
// SigningOptions encapsulates settings that control whether or not we
// strip or add signatures to the image when pushing (uploading) the
// image to a registry.
common.SigningOptions
}
func pushCmd(c *cli.Context) error {
var registryCreds *types.DockerAuthConfig
@ -130,7 +98,7 @@ func pushCmd(c *cli.Context) error {
return err
}
options := pushOptions{
options := libkpodimage.CopyOptions{
Compression: compress,
SignaturePolicyPath: signaturePolicy,
Store: store,
@ -147,52 +115,5 @@ func pushCmd(c *cli.Context) error {
if !c.Bool("quiet") {
options.ReportWriter = os.Stderr
}
return pushImage(srcName, destName, options)
}
func pushImage(srcName, destName string, options pushOptions) error {
if srcName == "" || destName == "" {
return errors.Wrapf(syscall.EINVAL, "source and destination image names must be specified")
}
// Get the destination Image Reference
dest, err := alltransports.ParseImageName(destName)
if err != nil {
return errors.Wrapf(err, "error getting destination imageReference for %q", destName)
}
policyContext, err := getPolicyContext(options.SignaturePolicyPath)
if err != nil {
return errors.Wrapf(err, "Could not get default policy context for signature policy path %q", options.SignaturePolicyPath)
}
defer policyContext.Destroy()
// Look up the image name and its layer, then build the imagePushData from
// the image
img, err := libkpodimage.FindImage(options.Store, srcName)
if err != nil {
return errors.Wrapf(err, "error locating image %q for importing settings", srcName)
}
systemContext := common.GetSystemContext(options.SignaturePolicyPath)
cd, err := libkpodimage.ImportCopyDataFromImage(options.Store, systemContext, img.ID, "", "")
if err != nil {
return err
}
// Give the image we're producing the same ancestors as its source image
cd.FromImage = cd.Docker.ContainerConfig.Image
cd.FromImageID = string(cd.Docker.Parent)
// Prep the layers and manifest for export
src, err := cd.MakeImageRef(manifest.GuessMIMEType(cd.Manifest), options.Compression, img.Names, img.TopLayer, nil)
if err != nil {
return errors.Wrapf(err, "error copying layers and metadata")
}
copyOptions := common.GetCopyOptions(options.ReportWriter, options.SignaturePolicyPath, nil, &options.DockerRegistryOptions, options.SigningOptions)
// Copy the image to the remote destination
err = cp.Image(policyContext, dest, src, copyOptions)
if err != nil {
return errors.Wrapf(err, "Error copying image to the remote destination")
}
return nil
return libkpodimage.PushImage(srcName, destName, options)
}