// Render produces a container graph where the the latest metadata contains the
// container image name, if found.
func (r containerWithImageNameRenderer) Render(rpt report.Report, dct Decorator) report.Nodes {
containers := r.Renderer.Render(rpt, dct)
images := SelectContainerImage.Render(rpt, dct)
outputs := report.Nodes{}
for id, c := range containers {
outputs[id] = c
imageID, ok := c.Latest.Lookup(docker.ImageID)
if !ok {
continue
}
image, ok := images[report.MakeContainerImageNodeID(imageID)]
if !ok {
continue
}
imageName, ok := image.Latest.Lookup(docker.ImageName)
if !ok {
continue
}
imageNameWithoutVersion := docker.ImageNameWithoutVersion(imageName)
imageNodeID := report.MakeContainerImageNodeID(imageNameWithoutVersion)
output := c.Copy()
output = propagateLatest(docker.ImageName, image, output)
output = propagateLatest(docker.ImageLabelPrefix+"works.weave.role", image, output)
output.Parents = output.Parents.
Delete(report.ContainerImage).
Add(report.ContainerImage, report.MakeStringSet(imageNodeID))
outputs[id] = output
}
return outputs
}
func isPauseContainer(n report.Node, rpt report.Report) bool {
containerImageIDs, ok := n.Parents.Lookup(report.ContainerImage)
if !ok {
return false
}
for _, imageNodeID := range containerImageIDs {
imageNode, ok := rpt.ContainerImage.Nodes[imageNodeID]
if !ok {
continue
}
imageName, ok := imageNode.Latest.Lookup(docker.ImageName)
if !ok {
continue
}
if docker.ImageNameWithoutVersion(imageName) == "google_containers/pause" {
return true
}
}
return false
}
// MapContainerImage2Name ignores image versions
func MapContainerImage2Name(n report.Node, _ report.Networks) report.Nodes {
// Propagate all pseudo nodes
if n.Topology == Pseudo {
return report.Nodes{n.ID: n}
}
imageName, ok := n.Latest.Lookup(docker.ImageName)
if !ok {
return report.Nodes{}
}
imageNameWithoutVersion := docker.ImageNameWithoutVersion(imageName)
output := n.Copy()
output.ID = report.MakeContainerImageNodeID(imageNameWithoutVersion)
if imageID, ok := report.ParseContainerImageNodeID(n.ID); ok {
output.Sets = output.Sets.Add(docker.ImageID, report.EmptyStringSet.Add(imageID))
}
return report.Nodes{output.ID: output}
}