Golang TagEventList.Items方法代码示例

func getSharedImageStream(namespace, name string) *imageapi.ImageStream {
	tevList := imageapi.TagEventList{}
	for _, imgName := range []string{
		baseImageWith1LayerDigest,
		baseImageWith2LayersDigest,
		childImageWith2LayersDigest,
		childImageWith3LayersDigest,
		miscImageDigest,
	} {
		tevList.Items = append(tevList.Items,
			imageapi.TagEvent{
				DockerImageReference: fmt.Sprintf("172.30.12.34:5000/test/[email protected]%s", imgName),
				Image:                imgName,
			})
	}

	sharedIS := imageapi.ImageStream{
		ObjectMeta: kapi.ObjectMeta{
			Namespace: namespace,
			Name:      name,
		},
		Status: imageapi.ImageStreamStatus{
			Tags: map[string]imageapi.TagEventList{
				"latest": tevList,
			},
		},
	}

	return &sharedIS
}

// DeletingImageStreamPruneFunc returns an ImageStreamPruneFunc that deletes the imageStream.
func DeletingImageStreamPruneFunc(streams client.ImageStreamsNamespacer) ImageStreamPruneFunc {
	return func(stream *imageapi.ImageStream, image *imageapi.Image) (*imageapi.ImageStream, error) {
		glog.V(4).Infof("Checking if ImageStream %s/%s has references to image in status.tags", stream.Namespace, stream.Name)
		for tag, history := range stream.Status.Tags {
			glog.V(4).Infof("Checking tag %q", tag)
			newHistory := imageapi.TagEventList{}
			for i, tagEvent := range history.Items {
				glog.V(4).Infof("Checking tag event %d with image %q", i, tagEvent.Image)
				if tagEvent.Image != image.Name {
					glog.V(4).Infof("Tag event doesn't match deleting image - keeping")
					newHistory.Items = append(newHistory.Items, tagEvent)
				}
			}
			stream.Status.Tags[tag] = newHistory
		}

		glog.V(4).Infof("Updating ImageStream %s/%s", stream.Namespace, stream.Name)
		glog.V(5).Infof("Updated stream: %#v", stream)
		updatedStream, err := streams.ImageStreams(stream.Namespace).UpdateStatus(stream)
		if err != nil {
			return nil, err
		}
		return updatedStream, nil
	}
}

// GetSharedImageStream returns an image stream having all the testing images tagged in its status under
// latest tag.
func GetSharedImageStream(namespace, name string) *imageapi.ImageStream {
	tevList := imageapi.TagEventList{}
	for _, imgName := range []string{
		BaseImageWith1LayerDigest,
		BaseImageWith2LayersDigest,
		ChildImageWith2LayersDigest,
		ChildImageWith3LayersDigest,
		MiscImageDigest,
	} {
		tevList.Items = append(tevList.Items,
			imageapi.TagEvent{
				DockerImageReference: MakeDockerImageReference("test", "is", imgName),
				Image:                imgName,
			})
	}

	sharedIS := imageapi.ImageStream{
		ObjectMeta: kapi.ObjectMeta{
			Namespace: namespace,
			Name:      name,
		},
		Status: imageapi.ImageStreamStatus{
			Tags: map[string]imageapi.TagEventList{
				"latest": tevList,
			},
		},
	}

	return &sharedIS
}

// pruneStreams removes references from all image streams' status.tags entries
// to prunable images, invoking streamPruner.PruneImageStream for each updated
// stream.
func pruneStreams(g graph.Graph, imageNodes []*imagegraph.ImageNode, streamPruner ImageStreamPruner) []error {
	errs := []error{}

	glog.V(4).Infof("Removing pruned image references from streams")
	for _, imageNode := range imageNodes {
		for _, n := range g.To(imageNode) {
			streamNode, ok := n.(*imagegraph.ImageStreamNode)
			if !ok {
				continue
			}

			stream := streamNode.ImageStream
			updatedTags := sets.NewString()

			glog.V(4).Infof("Checking if ImageStream %s/%s has references to image %s in status.tags", stream.Namespace, stream.Name, imageNode.Image.Name)

			for tag, history := range stream.Status.Tags {
				glog.V(4).Infof("Checking tag %q", tag)

				newHistory := imageapi.TagEventList{}

				for i, tagEvent := range history.Items {
					glog.V(4).Infof("Checking tag event %d with image %q", i, tagEvent.Image)

					if tagEvent.Image != imageNode.Image.Name {
						glog.V(4).Infof("Tag event doesn't match deleted image - keeping")
						newHistory.Items = append(newHistory.Items, tagEvent)
					} else {
						glog.V(4).Infof("Tag event matches deleted image - removing reference")
						updatedTags.Insert(tag)
					}
				}
				if len(newHistory.Items) == 0 {
					glog.V(4).Infof("Removing tag %q from status.tags of ImageStream %s/%s", tag, stream.Namespace, stream.Name)
					delete(stream.Status.Tags, tag)
				} else {
					stream.Status.Tags[tag] = newHistory
				}
			}

			updatedStream, err := streamPruner.PruneImageStream(stream, imageNode.Image, updatedTags.List())
			if err != nil {
				errs = append(errs, fmt.Errorf("error pruning image from stream: %v", err))
				continue
			}

			streamNode.ImageStream = updatedStream
		}
	}
	glog.V(4).Infof("Done removing pruned image references from streams")
	return errs
}