Kubernetes List All Containers that are not running

Question

How to list All Containers that are not running using Kubectl command. I want output like

CONTAINER_NAME   STATUS        POD_NAME       NAMESPACE <br>
container_1      Running       pod_1          ns1       <br>
container_2      Not Running   pod_2          ns2       <br>
container_3      Running       pod_2          ns2       <br>

Answer 1

kubectl get pods --field-selector status.phase!=Running

Above command will above list down all pods, not in Running status for default namespace.

if you want to run a command across all namespaces & list down all PODS

kubectl get pods --field-selector status.phase!=Running --all-namespaces

You can also print custom column as per require if you want to print Namespace

kubectl get pod --field-selector status.phase!=Running -o=custom-columns=NAME:.metadata.name,STATUS:.status.phase,NAMEDPACE:.metadata.namespace

Final command the way you are looking forward with columns

kubectl get pod --field-selector status.phase!=Running -o=custom-columns=POD_NAME:.metadata.name,STATUS:.status.phase,NAMEDPACE:.metadata.namespace,CONTAINER_NAME:.spec.containers[*].name

Answer 2

In Addition to above answer, I had a special usecase where I wanted to get all the non-running pods names to remove them. So I used this to get the names as list

kubectl get pods --all-namespace --field-selector status.phase!="Running" -o=jsonpath='{.items[*].metadata.name}'

Answer 3

The issue here is that .status.phase is actually the scheduling state, not the actual state. It can be in "Running" state and your containers in the pod still in a crashloop. What I do is to check if the latest containerStatuses is in a waiting state. If yes, than those will be the stuck containers:

kubectl get pods -o jsonpath='{range .items[?(@.status.containerStatuses[-1:].state.waiting)]}{.metadata.name}: {@.status.containerStatuses[*].state.waiting.reason}{"\n"}{end}'