Guestbook Example

This example shows how to build a simple, multi-tier web application using Helm Classic and Deis Workflow.

The example consists of:

• A web frontend which is installed as a Deis Workflow
• And a back-end Redis master (for storage) with a replicated set of Redis slaves

The web frontend interacts with the Redis master API via JavaScript calls.

Prerequisites

This example requires a running Kubernetes cluster and you have installed Helm Classic and Deis Workflow.

Backend install with the Helm Classic

1. We add the remote repo to Helm:

$ helmc up
$ helmc repo add demo-charts https://github.com/deis/demo-charts
$ helmc up

2. We install our back-end chart

$ helmc fetch demo-charts/redis-guestbook
$ helmc install redis-guestbook

Front-end install with deis cli

1. Clone the repo:

$ git clone https://github.com/deis/example-guestbook.git
$ cd example-guestbook

2. Create guestbook App:

$ deis create guestbook

3. Set env vars so the App knows where to connect to redis cluster:

$ deis config:set GET_HOSTS_FROM=env REDIS_MASTER_SERVICE_HOST=redis-master.default REDIS_SLAVE_SERVICE_HOST=redis-slave.default PORT=80 -a guestbook

4. Push to remote git repo:

$ git push deis master

5. Open the App in your browser:

$ deis open