// ViewHistory returns a description of all the history it can find for a deployment config.
func (h *DeploymentConfigHistoryViewer) ViewHistory(namespace, name string, revision int64) (string, error) {
opts := kapi.ListOptions{LabelSelector: deployutil.ConfigSelector(name)}
deploymentList, err := h.rn.ReplicationControllers(namespace).List(opts)
if err != nil {
return "", err
}
if len(deploymentList.Items) == 0 {
return "No rollout history found.", nil
}
items := deploymentList.Items
history := make([]*kapi.ReplicationController, 0, len(items))
for i := range items {
history = append(history, &items[i])
}
// Print details of a specific revision
if revision > 0 {
var desired *kapi.PodTemplateSpec
// We could use a binary search here but brute-force is always faster to write
for i := range history {
rc := history[i]
if deployutil.DeploymentVersionFor(rc) == revision {
desired = rc.Spec.Template
break
}
}
if desired == nil {
return "", fmt.Errorf("unable to find the specified revision")
}
buf := bytes.NewBuffer([]byte{})
kubectl.DescribePodTemplate(desired, buf)
return buf.String(), nil
}
sort.Sort(deployutil.ByLatestVersionAsc(history))
return tabbedString(func(out *tabwriter.Writer) error {
fmt.Fprintf(out, "REVISION\tSTATUS\tCAUSE\n")
for i := range history {
rc := history[i]
rev := deployutil.DeploymentVersionFor(rc)
status := deployutil.DeploymentStatusFor(rc)
cause := rc.Annotations[deployapi.DeploymentStatusReasonAnnotation]
if len(cause) == 0 {
cause = "<unknown>"
}
fmt.Fprintf(out, "%d\t%s\t%s\n", rev, status, cause)
}
return nil
})
}
func deploymentInfo(oc *exutil.CLI, name string) (*deployapi.DeploymentConfig, []kapi.ReplicationController, []kapi.Pod, error) {
dc, err := oc.REST().DeploymentConfigs(oc.Namespace()).Get(name)
if err != nil {
return nil, nil, nil, err
}
// get pods before RCs, so we see more RCs than pods.
pods, err := oc.KubeREST().Pods(oc.Namespace()).List(kapi.ListOptions{})
if err != nil {
return nil, nil, nil, err
}
rcs, err := oc.KubeREST().ReplicationControllers(oc.Namespace()).List(kapi.ListOptions{
LabelSelector: deployutil.ConfigSelector(name),
})
if err != nil {
return nil, nil, nil, err
}
sort.Sort(deployutil.ByLatestVersionAsc(rcs.Items))
return dc, rcs.Items, pods.Items, nil
}
