// updateAnnotations returns an Annotation map containing the api annotation map plus
// locally managed annotations
func updateAnnotations(existing, ref *api.Pod) {
annotations := make(map[string]string, len(ref.Annotations)+len(localAnnotations))
for k, v := range ref.Annotations {
annotations[k] = v
}
for _, k := range localAnnotations {
if v, ok := existing.Annotations[k]; ok {
annotations[k] = v
}
}
existing.Annotations = annotations
}
// ToAPIPod converts Pod to api.Pod. Note that if a field in api.Pod has no
// corresponding field in Pod, the field would not be populated.
func (p *Pod) ToAPIPod() *api.Pod {
var pod api.Pod
pod.UID = p.ID
pod.Name = p.Name
pod.Namespace = p.Namespace
for _, c := range p.Containers {
var container api.Container
container.Name = c.Name
container.Image = c.Image
pod.Spec.Containers = append(pod.Spec.Containers, container)
}
return &pod
}
// checkAndUpdatePod updates existing if ref makes a meaningful change and returns true, or
// returns false if there was no update.
func checkAndUpdatePod(existing, ref *api.Pod) bool {
// TODO: it would be better to update the whole object and only preserve certain things
// like the source annotation or the UID (to ensure safety)
if !podsDifferSemantically(existing, ref) {
return false
}
// this is an update
// Overwrite the first-seen time with the existing one. This is our own
// internal annotation, there is no need to update.
ref.Annotations[kubelet.ConfigFirstSeenAnnotationKey] = existing.Annotations[kubelet.ConfigFirstSeenAnnotationKey]
existing.Spec = ref.Spec
existing.Labels = ref.Labels
existing.DeletionTimestamp = ref.DeletionTimestamp
existing.DeletionGracePeriodSeconds = ref.DeletionGracePeriodSeconds
updateAnnotations(existing, ref)
return true
}