how-to-install-software-on-kubernetes-clusters-with-the-helm-package-manager

How To Install Software on Kubernetes Clusters with the Helm Package Manager

Notes and files for the tutorial How To Install Software on Kubernetes Clusters with the Helm Package Manager.

Step 1 - Installing Helm easier under Linux/macOS

This one-liner will install Helm in a glimpse:

bash <(curl -sSL https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get)

Step 2 - Commands to install Helm

# Create Service Account tiller
kubectl -n kube-system create serviceaccount tiller
# Bind tiller to cluser-admin role
kubectl create clusterrolebinding tiller --clusterrole cluster-admin --serviceaccount=kube-system:tiller
# Initialize Helm on your host and create tiller pod
helm init --service-account tiller
# Check out tiller is working
kubectl get pods --namespace kube-system

Step 3 - Installing a Helm Chart

# Install dashboard Chart
helm install stable/kubernetes-dashboard --name dashboard-demo
# Check status
helm list
# Check status of the service
kubectl get services

Step 4 - Updating a Chart

# Change name to 'dashboard'
helm upgrade dashboard-demo stable/kubernetes-dashboard --set fullnameOverride="dashboard"
kubectl get services

Note: I did not managed to get access to the service either using kubectl proxy URL nor port-forwarding command

Step 5 - Rolling back a Release

# Do the rollback
helm rollback dashboard-demo 1
kubectl get services

Step 6 - Deleting a Release

# Deletes the release (but some stuff will be left)
helm delete dashboard-demo
helm list --deleted
# Delete the release once for all
helm delete dashboard-demo --purge
helm list --deleted