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Installing and Testing Helm and Tiller

This Hands-On Lab is intended to provide practice with installing and configuring Helm in a Kubernetes environment.

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Path Info

Clock icon Intermediate
Clock icon 1h 0m
Clock icon Apr 05, 2019

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Table of Contents

  1. Challenge

    Install Helm and Tiller in the Existing Cluster

    Download the helm binary release:

    [user@host]$ curl > ./helm.tar.gz

    Extract the archive:

    [user@host]$ tar -xvf ./helm.tar.gz

    Navigate to the linux-amd64 directory:

    [user@host]$ cd linux-amd64

    Move the helm and tiller executable files to the /usr/local/bin directory:

    [user@host]$ sudo mv ./helm /usr/local/bin
    [user@host]$ sudo mv ./tiller /usr/local/bin

    Run the helm version command to ensure that the helm command is available:

    [user@host]$ helm version

    Install tiller:

    [user@host]$ helm init --stable-repo-url 

    Run the version command again to ensure that Tiller is available:

    [user@host]$ helm version
  2. Challenge

    Deploy, Troubleshoot, and Verify Deployment of the NGINX Chart

    Ensure that you are in the cloud_user home directory. This directory contains the nginx chart at /home/cloud_user/nginx:

    [cloud_user@host]$ cd ~

    This command should return a directory listing containing Chart.yaml:

    [cloud_user@host]$ls ./nginx

    Install the nginx chart:

    [cloud_user@host]$ helm install ./nginx

    This command should error with a "name" error, due to the tiller service account missing.
    Add the tiller service account:

    [cloud_user@host]$ kubectl create serviceaccount --namespace kube-system tiller
    [cloud_user@host]$ kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
    [cloud_user]$ kubectl patch deploy --namespace kube-system tiller-deploy -p'{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'

    Wait for the tiller pod to restart with the update, and then install the nginx example chart:

    [cloud_user@host]$ helm install ./nginx

    Once the release has completed and you see the release output, locate the cluster IP for the service that has been created. Then confirm that the nginx pod has been deployed correctly.

    [cloud_user@host]$ curl "service cluster ip":8888

    This should return an html message.

    Clean up the test deployment, get the release name from Helm, and then delete the release:

    [cloud_user@host]$ helm ls --short
    [cloud_user@host]$ helm delete "return from previous command"

    Confirm that the release has been removed. The following commands should return nothing:

    [cloud_user@host]$ helm ls  
    [cloud_user@host]$ kubectl get pods

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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