Do you docker? How about layer-docker? Learn how in this weeks post

[Charles Butler]

Greetings everyone,

I spent some time hacking up a deep dive on how to work with layer-docker,
the darling layer from the ~containers team making onboarding users looking
to use docker in their juju experience even easier.

http://dasroot.net/posts/2016-08-03-layer-docker-deep-dive/

This breaks down a multi-factor application comprising of:


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

You'll learn how to deploy this "bundle" (i didn't include bundle
instructions) as a stand-alone charm for evaluation purposes, and then how
to connect to external services for proper scale out production workloads
where data persistence and horizontal scalability is a key factor.

I wrote this post in tandem with doing the charming work. If you notice any
issues please either file a comment on the post, ping me here on the
mailing list, or file a bug against any of the mentioned repositories in
the post. (except the core vote-app-example from docker inc, they didn't
help in this post, so it's likely to get closed as wontfix).

This is also a prelim document that I plan on extracting for the juju docs,
if this was helpful, I'd love to know that too!

Thanks and all the best,

Charles
-- 
Juju Charmer
Canonical Group Ltd.
Ubuntu - Linux for human beings | www.ubuntu.com
Juju - The fastest way to model your service | www.jujucharms.com
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