Kubernetes Helm

Table of contents

• Prerequisite
• Installing Helm
• Initialize Helm (Install Tiller)
• Helmfile
• Helm Hub

 

Prerequisite

• Kubernetes with Vagrant and Ansible
• Kubernetes cluster on AWS with kops and Terraform

 

Installing Helm

Installing Helm is actually pretty straightforward. Follow these steps:

$ curl https://raw.githubusercontent.com/helm/helm/master/scripts/get > get_helm.sh
$ chmod 700 get_helm.sh
$ ./get_helm.sh

 

Initialize Helm (Install Tiller)

We have deployed our application using kubectl. Now we'll look at how to deploy our applications on Kubernetes cluster using Helm. Helm is a package manager for Kubernetes that allows developers deploy applications on Kubernetes clusters.

$ kubectl create serviceaccount --namespace kube-system tiller

serviceaccount/tiller created

$ kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller

clusterrolebinding.rbac.authorization.k8s.io/tiller-cluster-rule created

$ helm init --service-account tiller --upgrade

$HELM_HOME has been configured at /Users/sidrah/.helm.

Tiller (the Helm server-side component) has been installed into your Kubernetes Cluster.

Please note: by default, Tiller is deployed with an insecure 'allow unauthenticated users' policy.
To prevent this, run `helm init` with the --tiller-tls-verify flag.
For more information on securing your installation see: https://docs.helm.sh/using_helm/#securing-your-helm-installation
Happy Helming!

Now, run the following command

$ kubectl get pods -n kube-system

NAME                                                   READY   STATUS    RESTARTS   AGE
tiller-deploy-57c574bfb8-2f7zw                         1/1     Running   0          2m

$ kubectl get pods -n kube-system | grep tiller --color

tiller-deploy-57c574bfb8-2f7zw                         1/1     Running   0          3m

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Helmfile

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