Hi everyone,
I have deployed a Kubernetes cluster based on kubeadm and for the purpose of performing HorizontalPodAutoscaling based on the Custom Metrics, I have deployed prometheus-adpater through Helm.
Now, i want to edit the configuration for prometheus-adpater and because i am new to Helm, i don't know how to do this. So could you guid me how to edit the deployed helm charts?
I guess helm upgrade is that are you looking for.
This command upgrades a release to a specified version of a chart and/or updates chart values.
So if you have deployed prometheus-adapter, you can use command helm fetch
Download a chart from a repository and (optionally) unpack it in local directory
You will have all yamls, you can edit them and upgrade your current deployed chart via helm upgrade
I found an example, which should explain it to you more precisely.
You're trying to customize an installed chart. Please use this guide Customizing the Chart Before Installing.
The key parts:
There are two ways to pass configuration data during install:
--values(or-f): Specify a YAML file with overrides. This can be specified multiple times and the rightmost file will take precedence--set name=value: Specify overrides on the command line
There are a couple more ways to customize a Helm Chart values:
You may create a file with defined config and then helm install my-app [chart] -f /path/to/myconfig.yaml
As an example for a config file, please refer, for example, to redis one.
The second one is to check for the files the helm repo add or helm repo update create. You may check with helm env the variable HELM_REPOSITORY_CACHE that shows where those files are.
Untar the chart and look for the values config file or even go to the Kubernetes manifests /templates for a more in-depth customization. Then, install the chart.
