Metrics server unable to fetch the target metrics after downloading components.yaml file from the metrics server installation URL .

[PranitRout07]

ISSUE : Metrics server unable to fetch the target metrics after downloading components.yaml file from the metrics server installation URL .

Metrics Server Installation URL : https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

ISSUE DESCRIPTION :

Here i have first downloaded the components.yaml using the above URL . Then applied the components.yaml , but it is unable to detect the target metrics . Here in the below screenshot you can see the hpa resource is unable fetch the target metrics .

Then added the following lines at line number 140 .

        command:
        - /metrics-server
        - --kubelet-insecure-tls
        - --kubelet-preferred-address-types=InternalIP

After adding the lines , then again i have applied the components.yaml file using kubectl . Now hpa can detect the target metrics .

Question

Why the lines are not directly included at line number 140 in the components.yaml , so that it can work directly after downloaded from the URL ?

/kind bug

[k8s-ci-robot]

This issue is currently awaiting triage.

If metrics-server contributors determine this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[Chander84]

I have a different experience, If I download the components.yaml file using the https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml I am getting empty components.yaml. I am using EKS 1.26 version with fargate nodes. Please suggest me for the fix.

sh "curl -o components.yaml https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml"
sh "ls -ltr"

output:

• curl -o components.yaml https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
  % Total % Received % Xferd Average Speed Time Time Time Current
  Dload Upload Total Spent Left Speed

  0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
  0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
  [Pipeline] sh

• ls -ltr
  -rw-r-----. 1 root root 0 Apr 9 12:33 components.yaml