kubectl describe node does not properly account for pod level resources #1807
Description
What happened?
When the resource requests and limits for CPU and memory are defined at pod level, they are not properly accounted for in output of kubectl describe node:
Non-terminated Pods: (4 in total)
Namespace Name CPU Requests CPU Limits Memory Requests Memory Limits Age
--------- ---- ------------ ---------- --------------- ------------- ---
default nginx-resources-container-level 250m (25%) 500m (50%) 64Mi (3%) 128Mi (7%) 4s
default nginx-resources-pod-level 0 (0%) 0 (0%) 0 (0%) 0 (0%) 4s
kube-system canal-hwn8t 25m (2%) 0 (0%) 0 (0%) 0 (0%) 28d
kube-system kube-proxy-td452 0 (0%) 0 (0%) 0 (0%) 0 (0%) 3m39s
Allocated resources:
(Total limits may be over 100 percent, i.e., overcommitted.)
Resource Requests Limits
-------- -------- ------
cpu 275m (27%) 500m (50%)
memory 64Mi (3%) 128Mi (7%)
ephemeral-storage 0 (0%) 0 (0%)
hugepages-2Mi 0 (0%) 0 (0%)
All requests and limits are showing 0 for the pod where the requests and limits were assigned in the pod level spec rather than at the container level. The total values calculated under Allocated resources also does not seem to account for this.
What did you expect to happen?
I expect it to properly display the correct values just like when the resources are defined at container level.
How can we reproduce it (as minimally and precisely as possible)?
Run two pods, one with resources defined at pod level and one defined at container level. Compare output of kubectl describe node (node) for the two pods resources; Example .yaml:
apiVersion: v1
kind: Pod
metadata:
name: nginx-resources-container-level
spec:
containers:
- name: app
image: nginx
resources:
requests:
memory: "64Mi"
cpu: "250m"
limits:
memory: "128Mi"
cpu: "500m"
---
apiVersion: v1
kind: Pod
metadata:
name: nginx-resources-pod-level
spec:
resources:
requests:
memory: "64Mi"
cpu: "250m"
limits:
memory: "128Mi"
cpu: "500m"
containers:
- name: app
image: nginx
Anything else we need to know?
No response
Kubernetes version
Details
$ kubectl version
Client Version: v1.34.3
Kustomize Version: v5.7.1
Server Version: v1.34.3Cloud provider
Details
Not too sure, using the free cloud playground on killercoda.OS version
Details
# On Linux:
$ cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.3 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.3 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
$ uname -a
Linux controlplane 6.8.0-51-generic kubernetes/kubernetes#52-Ubuntu SMP PREEMPT_DYNAMIC Thu Dec 5 13:09:44 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux