Using the kubernetes go-client (k8s.io/client-go/kubernetes
), I know how to get pod.Status
and I find the pod.Status.Phase
useful (docs). For example, I can output the Pod Status Phase of all Pods using this:
...
api := clientset.CoreV1()
pods, err := api.Pods("").List(metav1.ListOptions{})
for i, pod := range pods.Items {
podstatusPhase := string(pod.Status.Phase)
podCreationTime := pod.GetCreationTimestamp()
age := time.Since(podCreationTime.Time).Round(time.Second)
podInfo := fmt.Sprintf("[%d] Pod: %s, Phase: %s , Created: %s, Age: %s", i, pod.GetName(), podstatusPhase, podCreationTime, age.String())
fmt.Println(podInfo)
}
However, the phase
is a little simplistic in that it only ever shows 5 values (Pending
, Running
, Succeeded
, Failed
, Unknown
). I'd rather get the same info that kubectl get pods
gives in the Status column, for example:
$ kubectl get pods
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
moby-dick-cron-scheduler-1564578660-bg4sb 0/2 ContainerCreating 0 178m <none> ip-10-30-13-151.ec2.internal <none> <none>
notifications-missed-calls-1564564740-js762 0/2 Init:0/1 0 6h49m <none> ip-10-30-13-6.ec2.internal <none> <none>
antivirus-scanner-cron-1564576740-sd6hh 0/2 Completed 0 3h30m 10.30.13.169 ip-10-30-13-151.ec2.internal <none> <none>
In particular, I'm interested in Init:0/1
and PodInitializing
statuses. The Pods in these statuses just show as "Pending" when using pod.Status.Phase
.
Init:0/1
means the Pod has 1 Init containers and 0 have completed successfully so far. init containers run before app containers are started.PodInitializing
means the Pod has already finished executing Init Containers.Is there a way to get a Status such as Init:0/1
using k8s.io/client-go/kubernetes
? or is there no short-cut, and I'd need to re-calculate it the same way kubectl does? I guess it uses Pod Status Conditions and container statuses to build the info. If I need to re-calculate it, maybe I can use the kubectl sourcecode? Does anyone know where I can find the relevant bit? (I have very limited golang experience)
I was able to show the exact same information as kubectl get pods
. Please see the answer here: https://stackoverflow.com/a/74722781/7129053