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-rw-r--r--libpod/image/image.go4
-rw-r--r--libpod/image/image_test.go8
-rw-r--r--libpod/image/pull.go44
3 files changed, 44 insertions, 12 deletions
diff --git a/libpod/image/image.go b/libpod/image/image.go
index ea326d820..c871eb3e4 100644
--- a/libpod/image/image.go
+++ b/libpod/image/image.go
@@ -125,7 +125,7 @@ func (ir *Runtime) NewFromLocal(name string) (*Image, error) {
// New creates a new image object where the image could be local
// or remote
-func (ir *Runtime) New(ctx context.Context, name, signaturePolicyPath, authfile string, writer io.Writer, dockeroptions *DockerRegistryOptions, signingoptions SigningOptions, forcePull bool) (*Image, error) {
+func (ir *Runtime) New(ctx context.Context, name, signaturePolicyPath, authfile string, writer io.Writer, dockeroptions *DockerRegistryOptions, signingoptions SigningOptions, forcePull bool, label *string) (*Image, error) {
// We don't know if the image is local or not ... check local first
newImage := Image{
InputName: name,
@@ -145,7 +145,7 @@ func (ir *Runtime) New(ctx context.Context, name, signaturePolicyPath, authfile
if signaturePolicyPath == "" {
signaturePolicyPath = ir.SignaturePolicyPath
}
- imageName, err := ir.pullImageFromHeuristicSource(ctx, name, writer, authfile, signaturePolicyPath, signingoptions, dockeroptions)
+ imageName, err := ir.pullImageFromHeuristicSource(ctx, name, writer, authfile, signaturePolicyPath, signingoptions, dockeroptions, label)
if err != nil {
return nil, errors.Wrapf(err, "unable to pull %s", name)
}
diff --git a/libpod/image/image_test.go b/libpod/image/image_test.go
index 077ae460e..075ba119d 100644
--- a/libpod/image/image_test.go
+++ b/libpod/image/image_test.go
@@ -87,9 +87,9 @@ func TestImage_NewFromLocal(t *testing.T) {
// Need images to be present for this test
ir, err := NewImageRuntimeFromOptions(so)
assert.NoError(t, err)
- bb, err := ir.New(context.Background(), "docker.io/library/busybox:latest", "", "", writer, nil, SigningOptions{}, false)
+ bb, err := ir.New(context.Background(), "docker.io/library/busybox:latest", "", "", writer, nil, SigningOptions{}, false, nil)
assert.NoError(t, err)
- bbglibc, err := ir.New(context.Background(), "docker.io/library/busybox:glibc", "", "", writer, nil, SigningOptions{}, false)
+ bbglibc, err := ir.New(context.Background(), "docker.io/library/busybox:glibc", "", "", writer, nil, SigningOptions{}, false, nil)
assert.NoError(t, err)
tm, err := makeLocalMatrix(bb, bbglibc)
@@ -136,7 +136,7 @@ func TestImage_New(t *testing.T) {
// Iterate over the names and delete the image
// after the pull
for _, img := range names {
- newImage, err := ir.New(context.Background(), img, "", "", writer, nil, SigningOptions{}, false)
+ newImage, err := ir.New(context.Background(), img, "", "", writer, nil, SigningOptions{}, false, nil)
assert.NoError(t, err)
assert.NotEqual(t, newImage.ID(), "")
err = newImage.Remove(false)
@@ -164,7 +164,7 @@ func TestImage_MatchRepoTag(t *testing.T) {
}
ir, err := NewImageRuntimeFromOptions(so)
assert.NoError(t, err)
- newImage, err := ir.New(context.Background(), "busybox", "", "", os.Stdout, nil, SigningOptions{}, false)
+ newImage, err := ir.New(context.Background(), "busybox", "", "", os.Stdout, nil, SigningOptions{}, false, nil)
assert.NoError(t, err)
err = newImage.TagImage("foo:latest")
assert.NoError(t, err)
diff --git a/libpod/image/pull.go b/libpod/image/pull.go
index 434b83520..6fef96e37 100644
--- a/libpod/image/pull.go
+++ b/libpod/image/pull.go
@@ -4,6 +4,7 @@ import (
"context"
"fmt"
"io"
+ "strings"
cp "github.com/containers/image/copy"
"github.com/containers/image/directory"
@@ -192,7 +193,7 @@ func (ir *Runtime) pullGoalFromImageReference(ctx context.Context, srcRef types.
// pullImageFromHeuristicSource pulls an image based on inputName, which is heuristically parsed and may involve configured registries.
// Use pullImageFromReference if the source is known precisely.
-func (ir *Runtime) pullImageFromHeuristicSource(ctx context.Context, inputName string, writer io.Writer, authfile, signaturePolicyPath string, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions) ([]string, error) {
+func (ir *Runtime) pullImageFromHeuristicSource(ctx context.Context, inputName string, writer io.Writer, authfile, signaturePolicyPath string, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions, label *string) ([]string, error) {
var goal *pullGoal
sc := GetSystemContext(signaturePolicyPath, authfile, false)
srcRef, err := alltransports.ParseImageName(inputName)
@@ -208,7 +209,7 @@ func (ir *Runtime) pullImageFromHeuristicSource(ctx context.Context, inputName s
return nil, errors.Wrapf(err, "error determining pull goal for image %q", inputName)
}
}
- return ir.doPullImage(ctx, sc, *goal, writer, signingOptions, dockerOptions)
+ return ir.doPullImage(ctx, sc, *goal, writer, signingOptions, dockerOptions, label)
}
// pullImageFromReference pulls an image from a types.imageReference.
@@ -218,11 +219,11 @@ func (ir *Runtime) pullImageFromReference(ctx context.Context, srcRef types.Imag
if err != nil {
return nil, errors.Wrapf(err, "error determining pull goal for image %q", transports.ImageName(srcRef))
}
- return ir.doPullImage(ctx, sc, *goal, writer, signingOptions, dockerOptions)
+ return ir.doPullImage(ctx, sc, *goal, writer, signingOptions, dockerOptions, nil)
}
// doPullImage is an internal helper interpreting pullGoal. Almost everyone should call one of the callers of doPullImage instead.
-func (ir *Runtime) doPullImage(ctx context.Context, sc *types.SystemContext, goal pullGoal, writer io.Writer, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions) ([]string, error) {
+func (ir *Runtime) doPullImage(ctx context.Context, sc *types.SystemContext, goal pullGoal, writer io.Writer, signingOptions SigningOptions, dockerOptions *DockerRegistryOptions, label *string) ([]string, error) {
policyContext, err := getPolicyContext(sc)
if err != nil {
return nil, err
@@ -230,8 +231,12 @@ func (ir *Runtime) doPullImage(ctx context.Context, sc *types.SystemContext, goa
defer policyContext.Destroy()
systemRegistriesConfPath := registries.SystemRegistriesConfPath()
- var images []string
- var pullErrors *multierror.Error
+
+ var (
+ images []string
+ pullErrors *multierror.Error
+ )
+
for _, imageInfo := range goal.refPairs {
copyOptions := getCopyOptions(sc, writer, dockerOptions, nil, signingOptions, "", nil)
copyOptions.SourceCtx.SystemRegistriesConfPath = systemRegistriesConfPath // FIXME: Set this more globally. Probably no reason not to have it in every types.SystemContext, and to compute the value just once in one place.
@@ -239,6 +244,13 @@ func (ir *Runtime) doPullImage(ctx context.Context, sc *types.SystemContext, goa
if writer != nil && (imageInfo.srcRef.Transport().Name() == DockerTransport || imageInfo.srcRef.Transport().Name() == AtomicTransport) {
io.WriteString(writer, fmt.Sprintf("Trying to pull %s...", imageInfo.image))
}
+ // If the label is not nil, check if the label exists and if not, return err
+ if label != nil {
+ if err := checkRemoteImageForLabel(ctx, *label, imageInfo, sc); err != nil {
+ return nil, err
+ }
+ }
+
_, err = cp.Image(ctx, policyContext, imageInfo.dstRef, imageInfo.srcRef, copyOptions)
if err != nil {
pullErrors = multierror.Append(pullErrors, err)
@@ -314,3 +326,23 @@ func (ir *Runtime) pullGoalFromPossiblyUnqualifiedName(inputName string) (*pullG
searchedRegistries: searchRegistries,
}, nil
}
+
+// checkRemoteImageForLabel checks if the remote image has a specific label. if the label exists, we
+// return nil, else we return an error
+func checkRemoteImageForLabel(ctx context.Context, label string, imageInfo pullRefPair, sc *types.SystemContext) error {
+ labelImage, err := imageInfo.srcRef.NewImage(ctx, sc)
+ if err != nil {
+ return err
+ }
+ remoteInspect, err := labelImage.Inspect(ctx)
+ if err != nil {
+ return err
+ }
+ // Labels are case insensitive; so we iterate instead of simple lookup
+ for k := range remoteInspect.Labels {
+ if strings.ToLower(label) == strings.ToLower(k) {
+ return nil
+ }
+ }
+ return errors.Errorf("%s has no label %s", imageInfo.image, label)
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-16 22:51:09 +0000