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A Practical Guide to Helm

Install a Helm Chart on GKE

Explore how to install Helm charts on a Google Kubernetes Engine cluster. Learn to deploy and verify Helm-managed applications, including port-forwarding and checking Kubernetes resources. Gain hands-on experience managing Helm deployments in a cloud environment for scalable Kubernetes applications.

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Install Kanban on GKE

We’ll use our umbrella chart to install an application with only one command. Yes, that’s right. With only one command we can install an application on a cloud!

Here is a summary of the most important commands that can help us manage a cluster.

And here is the command to install the Kanban application, which might take a couple of minutes:

Shell
helm upgrade kanban ./kanban -n kanban --create-namespace --install --wait

The output will be as follows:

Release "kanban" does not exist. Installing it now.
W0107 06:53:14.496052   22612 warnings.go:70] Autopilot set default resource requests for Deployment kanban/kanban-frontend, as resource requests were not specified. See http://g.co/gke/autopilot-defaults.  
W0107 06:53:14.497283   22612 warnings.go:70] Autopilot set default resource requests for Deployment kanban/kanban-backend, as resource requests were not specified. See http://g.co/gke/autopilot-defaults.   
W0107 06:53:14.609664   22612 warnings.go:70] Autopilot increased resource requests for StatefulSet kanban/postgres to meet requirements. See http://g.co/gke/autopilot-resources.
NAME: kanban
LAST DEPLOYED: Fri Jan  7 06:53:13 2022
NAMESPACE: kanban
STATUS: deployed
REVISION: 1
Thank you for running Kanban application!


1. Establish port-forwarding:

   > kubectl port-forward svc/kanban-frontend 8080:8080 --namespace kanban

2. Enter the page http://localhost:8080/

If you encounter, Error: Kubernetes cluster unreachable: Get "http://localhost:8080/version": ...