Helm Workshop: Microsoft Reactor, 2018

The purpose of this workshop is to learn how to build new Helm 2 charts.

Workshop Format

This workshop is split into numbered sections outlined below:

1. Getting Started
2. Charts
3. Subcharts
4. Templating

Goal

Our goal for this workshop is to create a Helm chart that takes Docker's popular voting app demo and installs it in a Kubernetes cluster.

We will start with a simple chart, and then add from there.

Our application will have five parts:

1. A front-end for users to vote
2. A back-end that tallies votes
3. An admin interface to see the results
4. A Redis cache
5. A PostgreSQL database

Quick Reference

In this guide, we will be building a chart based on a sample voting app. Here are the images you will need:

• redis:alpine - The Redis server for a work queue
• postgres:9.4 - The persistent data storage
• dockersamples/examplevotingapp_result:before - The admin viewer
• dockersamples/examplevotingapp_vote:before - The voting frontend
• dockersamples/examplevotingapp_worker - The queue worker