---
title: Docker A Better Way for Dependencies
description: Techweek talk on using docker for dependencies
tags: techweek, docker, redbrick
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### Docker: A Better Way for Dependencies
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### What I want to talk about
- What is Docker<!-- .element: class="fragment" data-fragment-index="1" -->
- What it gives you as a developer<!-- .element: class="fragment" data-fragment-index="2" -->
- And a Demo<!-- .element: class="fragment" data-fragment-index="3" -->
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### What is Docker
The complicated part!
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> A container image is a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run it: code, runtime, system tools, system libraries, settings.
Note:
- This is long winded
- Show don't tell
----
Note:
- This is a computer
- Each section is independent of each other
- THESE ARE NOT VM
---
### Why you should Care
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#### Docker
- Don't need to install anything on your machine
- Can use conflicting versions
- No Clean Up
- Simple Script to build custom images
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#### Docker Compose
- Scriptable Enviroments
- Easily shared
- Easily changed
- Simple commands
---
## Demo
----
### Docker Command
``` bash
docker run -it --rm --name redbrick\
SECRET_API_TOKEN='somethingThatMustChange'\
RECAPTCHA_SITE_KEY='redbrickIsGreat'\
RECAPTCHA_SECRET_KEY='totalySecretKey'\
LOG_ROTATE='24h'\
-p 3000:3000 redbrick/site
```
----
### Docker Compose
``` yaml
version: "3"
services:
redbrick:
image: 'redbrick/site:latest'
restart: 'always'
ports:
- '3000:3000'
environment:
SECRET_API_TOKEN: 'somethingThatMustChange'
RECAPTCHA_SITE_KEY: 'redbrickIsGreat'
RECAPTCHA_SECRET_KEY: 'totalySecretKey'
LOG_ROTATE: '24h'
```
----
#### Try it live?
---
## Further Reading
- [docs.docker.com/compose/compose-file](https://docs.docker.com/compose/compose-file/)
- [hub.docker.com](https://hub.docker.com/)
- [docs.docker.com/engine/tutorials](https://docs.docker.com/engine/tutorials/)
- [video.fosdem.org](https://video.fosdem.org)
----
#### Questions?
