Kubernetes Helm

Table of contents

• Prerequisite
• Initialize Helm (Install Tiller)
• Helmfile

 

Prerequisite

• Kubernetes cluster on AWS with kops and Terraform

 

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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