Print all pods along with cpu requirements kubernetes

Question

I want to print a list of all my pods with the CPU requirements in a column

I'm pretty sure its something like kubectl get pods 'spec.containers[].resources.limits.cpu'

Can someone please give me the correct syntax?

Answer 1

You can also use the below command to get the cpu limit. It is more clearner than using jsonpath.

kubectl get po -o custom-columns="Name:metadata.name,CPU-limit:spec.containers[*].resources.limits.cpu"

Answer 2

You can get the pods (in the default namespace) and their CPU Limit with the following command.

kubectl get pods -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.containers[].resources.limits.cpu}{"\n"}{end}'

We use the JSONPath output with the -o=jsonpath flag, and provide it with the data we want to extract.

You can find more details on using the JSONPath output at https://kubernetes.io/docs/reference/kubectl/jsonpath/

Answer 3

Can you try below commands. replace cpu with memory to get memory requests and limits as well

CPU Requests
--------------
kubectl get po --all-namespaces \
 -o=jsonpath="{range .items[*]}{.metadata.namespace}:{.metadata.name}{'\n'}{range .spec.containers[*]}  {.name}:{.resources.requests.cpu}{'\n'}{end}{'\n'}{end}"

CPU Limits
-----------
kubectl get po --all-namespaces \
 -o=jsonpath="{range .items[*]}{.metadata.namespace}:{.metadata.name}{'\n'}{range .spec.containers[*]}  {.name}:{.resources.limits.cpu}{'\n'}{end}{'\n'}{end}"