/k8s-docker-vote

Deploying the 3th birthday voting app on Kubernetes

Primary LanguageJavaScriptApache License 2.0Apache-2.0

Example Voting App

This example is an adaptation of the Docker 3th birthday voting demo app originally found in this repo:

https://github.com/docker/docker-birthday-3

It's adapter to run on Kubernetes 1.2 and up.

##Architecture

  • A Python webapp which lets you vote between two options
  • A Redis queue which collects new votes
  • A Java worker which consumes votes and stores them in…
  • A Postgres database backed by a Docker volume
  • A Node.js webapp which shows the results of the voting in real time

##Pre-Requirement

Docker base images

At the time this demo is made most of the current alpine based images are not working well on Kubernetes because they have a disfunctional dns lookup machanism. This is fixed on the EDGE version of Docker.

You can build your own images with the adapted docker files in the images folder. They will be tagged with a specific label that are used in the application docker files.

So first run the build.sh file in the images directory and check if you have 4 new tagged images (prefixed with k8s-).

Google Container Engine

This examples are created for GKE and demonstrates some of the Google Cloud Platform integration. You can adapt them for your own environment.