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Move pullImage from Image to Runtime

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pullImage (now) only uses Image.InputName; it is really used to _create_
an Image object, based on the pull results (as is most visible in the
LoadFromArchive caller), so it should not be a method on it.

This also simplifies a bit the number of different kids of uses of
Image.InputName; still apparently not enough to clearly document
the field, though.

Should not change behavior.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

Closes: #1176
Approved by: rhatdan
This commit is contained in:
Miloslav Trmač
2018-07-28 06:54:34 +02:00
committed by Atomic Bot
parent dbe2395769
commit 2d5410d349
2 changed files with 12 additions and 17 deletions
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9
libpod/image/image.go
View File

@ -145,7 +145,7 @@ func (ir *Runtime) New(ctx context.Context, name, signaturePolicyPath, authfile
if signaturePolicyPath == "" {
signaturePolicyPath = ir.SignaturePolicyPath
}
imageName, err := newImage.pullImage(ctx, writer, authfile, signaturePolicyPath, signingoptions, dockeroptions, forceSecure)
imageName, err := ir.pullImage(ctx, name, writer, authfile, signaturePolicyPath, signingoptions, dockeroptions, forceSecure)
if err != nil {
return nil, errors.Wrapf(err, "unable to pull %s", name)
}
@ -163,16 +163,11 @@ func (ir *Runtime) New(ctx context.Context, name, signaturePolicyPath, authfile
// This function is needed because it is possible for a tar archive to have multiple tags for one image
func (ir *Runtime) LoadFromArchive(ctx context.Context, name, signaturePolicyPath string, writer io.Writer) ([]*Image, error) {
var newImages []*Image
newImage := Image{
InputName: name,
Local: false,
imageruntime: ir,
}
if signaturePolicyPath == "" {
signaturePolicyPath = ir.SignaturePolicyPath
}
imageNames, err := newImage.pullImage(ctx, writer, "", signaturePolicyPath, SigningOptions{}, &DockerRegistryOptions{}, false)
imageNames, err := ir.pullImage(ctx, name, writer, "", signaturePolicyPath, SigningOptions{}, &DockerRegistryOptions{}, false)
if err != nil {
return nil, errors.Wrapf(err, "unable to pull %s", name)
}

20
libpod/image/pull.go
View File

@ -200,24 +200,24 @@ func (ir *Runtime) pullGoalFromImageReference(ctx context.Context, srcRef types.
return ir.pullGoalFromGoalNames(goalNames)
}
// pullImage pulls an image from configured registries
// pullImage pulls an image from configured registries based on inputName.
// By default, only the latest tag (or a specific tag if requested) will be
// pulled.
func (i *Image) pullImage(ctx context.Context, writer io.Writer, authfile, signaturePolicyPath string, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions, forceSecure bool) ([]string, error) {
func (ir *Runtime) pullImage(ctx context.Context, inputName string, writer io.Writer, authfile, signaturePolicyPath string, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions, forceSecure bool) ([]string, error) {
// pullImage copies the image from the source to the destination
var goal pullGoal
sc := GetSystemContext(signaturePolicyPath, authfile, false)
srcRef, err := alltransports.ParseImageName(i.InputName)
srcRef, err := alltransports.ParseImageName(inputName)
if err != nil {
// could be trying to pull from registry with short name
goal, err = i.pullGoalFromPossiblyUnqualifiedName()
goal, err = ir.pullGoalFromPossiblyUnqualifiedName(inputName)
if err != nil {
return nil, errors.Wrap(err, "error getting default registries to try")
}
} else {
goal, err = i.imageruntime.pullGoalFromImageReference(ctx, srcRef, i.InputName, sc)
goal, err = ir.pullGoalFromImageReference(ctx, srcRef, inputName, sc)
if err != nil {
return nil, errors.Wrapf(err, "error determining pull goal for image %q", i.InputName)
return nil, errors.Wrapf(err, "error determining pull goal for image %q", inputName)
}
}
policyContext, err := getPolicyContext(sc)
@ -338,14 +338,14 @@ func pullGoalNamesFromPossiblyUnqualifiedName(inputName string) (*pullGoalNames,
}, nil
}
// pullGoalFromPossiblyUnqualifiedName looks at a decomposed image and determines the possible
// pullGoalFromPossiblyUnqualifiedName looks at inputName and determines the possible
// image references to try pulling in combination with the registries.conf file as well
func (i *Image) pullGoalFromPossiblyUnqualifiedName() (pullGoal, error) {
goalNames, err := pullGoalNamesFromPossiblyUnqualifiedName(i.InputName)
func (ir *Runtime) pullGoalFromPossiblyUnqualifiedName(inputName string) (pullGoal, error) {
goalNames, err := pullGoalNamesFromPossiblyUnqualifiedName(inputName)
if err != nil {
return pullGoal{}, err
}
return i.imageruntime.pullGoalFromGoalNames(goalNames)
return ir.pullGoalFromGoalNames(goalNames)
}
// pullGoalFromGoalNames converts a pullGoalNames to a pullGoal