Check Kubernetes Pod Status for Completed State - kubernetes

Question

Is there a way to check whether a pod status is in the completed state? I have a Pod that I only wanted to use once (where init containers didn't quite serve my purpose) and want to write a check to wait for Completed status.
I am able to get it for Running, Pending, but not for Completed.
Running:
[user#sandbox gcp_kubernetes_installation]$ kubectl get pods --field-selector=status.phase=Running -n mynamespace
NAME READY STATUS RESTARTS AGE
mssql-deployment-795dfcf9f7-l2b44 1/1 Running 0 6m
data-load-pod 1/1 Running 0 5m
Pending:
[user#sandbox gcp_kubernetes_installation]$ kubectl get pods --field-selector=status.phase=Pending -n mynamespace
NAME READY STATUS RESTARTS AGE
app-deployment-0 0/1 Pending 0 5m
Completed:
[user#sandbox gcp_kubernetes_installation]$ kubectl get pod -n namespace
NAME READY STATUS RESTARTS AGE
mssql-deployment-795dfcf9f7-l2b44 1/1 Running 0 11m
data-load-data-load-pod 0/1 Completed 0 10m
app-deployment-0 0/1 Pending 0 10m
[user#sandbox gcp_kubernetes_installation]$ kubectl get pods --field-selector=status.phase=Completed -n namespace
No resources found.
I believe there may be a bug in the field-selector, but just wondering if there are any fixes or details on a workaround.

Answer 1

The correct status.phase for completed pods is Succeeded.
So, to filter only completed pods, you should use this:
kubectl get pod --field-selector=status.phase=Succeeded
Although, the use of bare pods is not recommended. Consider using a Job Controller:
A Job creates one or more Pods and ensures that a specified number of
them successfully terminate. As pods successfully complete, the Job
tracks the successful completions.
You can check job conditions and wait for them with this:
kubectl wait --for=condition=complete job/myjob