Handson-helm

This is an introduction to Helm.

⚠️ Skip the step you have done

Pre-requisites

Install Gcloud

• Mac OS X: Official documentation

• Mac OS Brew: brew install google-cloud-sdk

• Linux: Official documentation

• Debian and Ubuntu: Official documentation

• RedHat and Centos: Official documentation

Login to Gcloud:

gcloud init

Fill with this:

project: sandbox-wescale

region: europe-west1

zone: europe-west1-d

Install kubectl

• Mac OS Brew: brew install kubernetes-cli
• Gcloud: gcloud components install kubectl

Accept API

gcloud auth application-default login

Connect to cluster

gcloud container clusters get-credentials handson-helm-wescale --zone europe-west1-d --project sandbox-wescale

Verify it is working: kubectl get ns

It should display all the namespaces available on the cluster. If it is not working come see me !

Install helm

• Mac OS Brew: brew install kubernetes-helm
• Others: Official documentation

Let's go

your-username: 1st letter of first name + last name Example: bpetit

Init helm with this script: ./helm-init.sh <your-username>

Do this on every shell you use (Or add it to your .bashrc or .zshrc):

export TILLER_NAMESPACE=<your-username>

If you forgot to do this shit I am going to hit you with a stick.

Helm cheat sheet:

helm install <name-of-app>

Install the application

helm install --name=<deployment-name> <name-of-app>

Install the application with the release-name specified

helm upgrade <release-name> <name-of-app>

Upgrade the release 'release-name' of the application

helm delete <release-name>

Delete the application link to this release

helm ls

List all the application installed in your cluster

helm create <my-app>

Create Helm chart

helm version

See what version is installed locally and in the cluster