Lightning talk - A rapid but intense introduction to some basic and important concept about this trending Open Source software.

1. Docker
From ZERO to NONZERO

2. WHO AM I?
- Francesco Lo Franco
- @__kekko
- Software Developer
@chupamobile.com
- PUG Roma member since 2014

3. WHAT IS DOCKER?
❏ OPEN SOURCE
❏ Powered by GOLANG
❏ Virtualization

4. 95,000,000$ROUND - april 2015
500,000,000$
Estimated Market Value
N
U
M
B
E
R
S But, above all...

5. Community!
❏ ~26.000 stars
❏ ~1200 contributors
❏ ~1000 issues

6. How Docker works?

7. Installing Docker
❏ Docker Daemon
❏ Docker Client
❏ Client HTTP

8. What is an Image?
FROM ubuntu:14.04
RUN apt-get update
RUN apt-get install -y curl nginx
Dockerfile
$ docker build .

9. What do we do with an
image?
We create a container
based on it!

10. What is a Container?
An instance of an image

11. What can we do with a
Container?
❏ execute process in bg
❏ execute task

12. Process in bg practically
$ docker run --name image_name
-p 8080:80
-d
nginx redis mysql elasticsearch ...

14. execute task example
Running composer install with
HHVM without having an HHVM as
dependency in my project
(HHVM is faster with composer!)

15. FROM ubuntu:14.04
ENV HOME /root
# Install Deps
RUN apt-get install -y -qq git curl wget hhvm
# Install composer
RUN bash -c "wget http://getcomposer.
org/composer.phar && mv composer.phar
/usr/local/bin/composer"
WORKDIR /srv
ENTRYPOINT ["hhvm", "/usr/local/bin/composer"]

16. execute task practically
$ docker run
-v `pwd`:/srv
docker-composer install

17. VANTAGGI?
▸ no overhead
▸ very fast
▸ a lot of pre-built images
▸ microservices?
▸ AWS, Google etc
▸ Tutum, Compose,
Machine, Swarm etc...

18. THANKS!
You can find me at
▸ @__kekko
▸ lofrancofrancesco@gmail.com