In this presentation we define the concept of Phoenix Servers, coined by Martin Fowler, and introduce Docker as a tool to achieve this idea.

1. Phoenix
Servers
with docker
by Nils de moor - @ndemoor
PHPBenelux March Meetup

2. Hello! I’m Nils De Moor
CTO & cofounder at WooRank
#mongo #ansible
#aws #devops #docker
That’s me!

3. CLEAN
SERVER
INSTALL
CONFIG MGMT
AGENT
(CHEF, PUPPET,
ANSIBLE, bash...)
COMPOSE
SCRIPTS
& RUN AGENT
SERVER
in
desired STATE
Change version
Edit config file
Add/remove library
Create folder/link/...
....
Script, Configure, Run, Repeat...

4. PUSH CODE RUN TESTs BUILD
Push, Test, Build, Repeat...

5. CLEAN
SERVER
INSTALL
CONFIG MGMT
AGENT
(CHEF, PUPPET,
ANSIBLE, bash...)
COMPOSE
SCRIPTS
& RUN AGENT
SERVER
in
desired STATE
PUSH CODE RUN TESTs BUILD
Deploy!

6. SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
Development Test Production
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STATE
SERVER
in
desired STAT
SERVER
in
desired STA
SERVER
in
desired ST
SERVE
in
desired S
SERV
in
desired
SERV
in
desired
SER
i
desire
SE
desir
S
desi
des
de
d

8. A LIBRARY NEEDS TO BE DELETED
A library needs to be removed... entirely

9. The config server goes down

10. Package managers are unavailable

11. System updates are “available”

12. What if all of this happens...

13. What if all of this happens...
...in production

14. What if all of this happens...
...in production
...while scaling up for a traffic spike

15. TEXT 1
TEXT 2
Idempotence broken!

16. “THE RESULT IS A UNIQUE SNOWFLAKE.
GOOD FOR A SKI RESORT,
BAD FOR A DATA CENTER.”
Martin Fowler

17. “A SERVER SHOULD BE LIKE A PHOENIX,
REGULARLY RISING FROM THE ASHES.”
Martin Fowler

20. Isolation
Portability
Compatibility
Automation
Speed
“Ship anything... anywhere”

21. • LXC Containers
• “Chroot on steroids”
• AUFS
• layered view on merged directories
• copy-on-write
What and how?

23. git clone https://github.com/ndemoor/phpbnl-demo

24. # Dockerfile: memcached
FROM ubuntu
# make sure the package repository is up to date
RUN echo "deb http://archive.ubuntu.com/ubuntu precise main
universe" > /etc/apt/sources.list
RUN apt-get update
# install memcached
RUN apt-get install -y memcached
# run as user daemon (memcached doesn't allow to run as root)
USER daemon
# expose memcached port
EXPOSE 11211
# Launch memcached when launching the container
# CMD [ "memcached" ]
ENTRYPOINT ["memcached"]

25. # Dockerfile: nginx and php
FROM ubuntu
# make sure the package repository is up to date
RUN echo "deb http://archive.ubuntu.com/ubuntu precise main
universe" > /etc/apt/sources.list
RUN apt-get update
# install php and nginx
RUN apt-get install php5-common php5-cli php5-fpm php5-memcache
php5-mcrypt nginx
RUN echo "cgi.fix_pathinfo = 0;" >> /etc/php5/fpm/php.ini
RUN echo "daemon off;" >> /etc/nginx/nginx.conf
EXPOSE 80

26. 0.1
App

27. # Pseudo-Dockerfile: app
FROM mynamespace/nginx-php
MAINTAINER myself
ADD . /var/www
RUN cd /var/www && install
WORKDIR /var/www
EXPOSE 80
CMD [ "./start.sh" ]

29. 0.1
0.2
?
App
App

30. 0.1
0.2
App
App

31. 0.1
0.2
App
App

32. • Deis - deployment and orchestration
• Dokku - deployment
• Fig - deployment
• Flynn - deployment and orchestration
• Shipyard - monitoring
Community

33. Thank
YOU!

34. Thank
YOU!
Psst... we’re hiring

35. http://docs.docker.io
http://morethanadventure.com/wp-content/uploads/2013/12/What_if.jpg
http://1.bp.blogspot.com/-YPJ77li2P3o/T1O5y29ZO-I/AAAAAAAAFOo/tqRMI68FBns/s1600/Prof+Macksey
%5B2%5D.jpg
http://www.pingzine.com/wp-content/uploads/2012/05/serverdown.jpg
http://www.abels.co.uk/wp-content/themes/abels/images/uploads/Storage/various%20005%20(2).jpg
http://www.murphyslawnyc.com/wp-content/themes/000edupress/images/logo.png
http://clipartist.info/clipart/xmas/snow/snowflake_stylized_XXL.png
http://www.dimensionsinfo.com/wp-content/uploads/2010/03/Freight-Container-sizes.jpg
http://www.swarthmore.edu/Images/administration/thephoenix/phoenix_logo_2color.gif
http://labourlist.org/wp-content/uploads/2011/11/broken-chain.jpg
Photo Credit