LFEL1014- Install metrics server got error

Hello @phannsokha ,

The helm upgrade is one command, from the error I realize that a new line character is added after -n and the namespace is being treated as separate command. Please join them together and you will be fine.

Example:- Type everything as one command (one line)
"helm upgrade --install metrics-server metrics-server/metrics-server -n kube-system --set args[0]=--kubelet-insecure-tls"

Hello @phannsokha ,

Please follow the exact step from the Lab guide. Also ensure there are no new line characters or additional whitespaces/special characters and it would work fine.

I have double checked from the Lab guide and I am able to install following the lab guide. Below is my output for reference.

student@cp:~$ helm repo add metrics-server https://kubernetes-sigs.github.io/metrics-server/
"metrics-server" has been added to your repositories
student@cp:~$ helm upgrade --install metrics-server metrics-server/metrics-server -n kube-system --set args[0]=--kubelet-insecure-tls
Release "metrics-server" does not exist. Installing it now.
NAME: metrics-server
LAST DEPLOYED: Thu Aug 1 14:07:20 2024
NAMESPACE: kube-system
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:

• Metrics Server *

Chart version: 3.12.1
App version: 0.7.1
Image tag: registry.k8s.io/metrics-server/metrics-server:v0.7.1