1.
moreDEVsonDEVOPSwith
DOCKERORCHESTRATION
All the Things you have to Know in OrdertousedockerwithOrchestrationinProductionlikeIdidbutnotreallylikeididitbecauseIcried,Ireallycriedhard,sopleasedonotcrybecauselifeisshortandyoushouldspendyourtimeenjoyingit.

2.
2.
@liuggio Giulio De Donato
@liuggiowelcometothebundle.com

3.
moreDEVsonDEVOPSwith
DOCKERORCHESTRATION
All the Things you have to Know in OrdertousedockerwithOrchestrationinProductionlikeIdidbutnotreallylikeididitbecauseIcried,Ireallycriedhard,sopleasedonotcrybecauselifeisshortandyoushouldspendyourtimeenjoyingit.

4.
@liuggio Giulio De Donato
1 Docker Container!==

5.
@liuggio Giulio De Donato
Virtualization !== ContainerContainer are mostly syscalls2

6.
@liuggio Giulio De Donato
3 It is all about
while true;
do mkdir x; cd x;
done
bomb() {
bomb | bomb &
}; bomb
ISOLATION

7.
@liuggio Giulio De Donato
4 DevOps is ...

8.
TheperfectStorm

9.
● VELOCITY
● Variation
● VisualizationLEAD TIME
Threewaydevops:

10.
@liuggio Giulio De Donato
Infrastructure like a
managed application
5
Infrastructure like a
managed application

11.
@liuggio Giulio De Donato
6 Use the FORCE
One process per container

12.
@liuggio Giulio De Donato
7 Use the FORCE
log to StdErr and StdOut

13.
@liuggio Giulio De Donato
Can’t touch this8

14.
@liuggio Giulio De Donato
9 Use the FORCE
Env. Variable all the things
/etc/php5/fpm/pool.d/www.conf
clear_env = no
[www]
env[MY_ENV_VAR_1] = 'value1'
env[MY_ENV_VAR_2] = 'value2'

15.
@liuggio Giulio De Donato
10 Containers communication is easy

16.
NGINX PHP-FPM
Data (code)
php-cli
@liuggio Giulio De Donato
Cache
DB
10 Containers communication is easy
Backend
expose
port 80
...Services

17.
NGINX PHP-FPM
Data (code)
php-cli
@liuggio Giulio De Donato
Cache
DB
10 Containers communication is easy
N
N
N
N
PHP
PHP
PHP
CLI
expose
port 80
Load
balancer
...Scale

18.
NGINX PHP-FPM
Data (code)
php-cli
@liuggio Giulio De Donato
10 Containers communication is easy
N
N
N
N
PHP
PHP
PHP
CLI
expose
port 80
Load
balancer
NODE 3
NODE 2
NODE 1
...Nodes

19.
NGINX PHP-FPM
Data (code)
php-cli
@liuggio Giulio De Donato
10 Containers communication is easy
Cache
DB
...SubNet

20.
@liuggio Giulio De Donato
10 Containers communication is easy
...Microservices
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NX
FPM
ode)
cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FP
Data (cod
php-cli
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cach
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
Cache
DB
NGINX
PHP-FPM
Data (code)
php-cli
C

21.
@liuggio Giulio De Donato
10 Containers communication is easy
NOT FOR HUMAN!!!!

22.
@liuggio Giulio De Donato
11 Orchestration !== Automation

23.
● Kubernetes
● DockerCloud
● DOCKERUCP
● MESOS
● Provisioningtool(BASHISM/…)
● …
DockerOrchestrationframeworks/tools

24.
@liuggio Giulio De Donato
DEMO

25.
Devops:
The last human action
happens when you commit?
@liuggio Giulio De Donato

26.
@liuggio Giulio De Donato
12 Understand your processes
CODE TEST DEPLOY

27.
@liuggio Giulio De Donato
13 Blue Green Deployment
Load
Balancer
Web Blue
Web Green

28.
@liuggio Giulio De Donato
12 My pipeline (contd)
CODE
BUILD
CHOOSE
NODES
Register
Services
RUN
Containers
(blue-green)
Integration
tests
Configure
Proxy with
color
Post
Integration
test
PUSH to
registry
TEST
PULL
CONTAINER
YOUR CUSTOMERS
ARE HAPPY

29.
@liuggio Giulio De Donato
14
Container registry and
service discovery

30.
CONSUL

31.
@liuggio Giulio De Donato
12 My pipeline (contd)
CODE
BUILD
CHOOSE
NODES
Register
Services
RUN
Containers
(blue-green)
Integration
tests
Configure
Proxy with
color
Post
Integration
test
PUSH to
registry
TEST
PULL
CONTAINER
YOUR CUSTOMERS
ARE HAPPY

32.
@liuggio Giulio De Donato
15 Graceful Deployment (contd)
Load
Balancer
Web
New Web
Feature

33.
@liuggio Giulio De Donato
16 You’ll need a lot of disk space

34.
@liuggio Giulio De Donato
17 Resources ...

35.
@liuggio Giulio De Donato
18
CONTAINER SERVICE A
CONTAINER SERVICE A
CONTAINER SERVICE A
CONTAINER SERVICE B
CONTAINER SERVICE B
CONTAINER SERVICE B

36.
@liuggio Giulio De Donato
18 DNS SRV is your friend
CONTAINER SERVICE A
CONTAINER SERVICE A
CONTAINER SERVICE A
CONTAINER SERVICE B
CONTAINER SERVICE B
CONTAINER SERVICE B

37.
@liuggio Giulio De Donato
18 DNS SRV is your friend
$ dig @192.168.99.100 bash_server.service.dc1.consul. SRV

38.
@liuggio Giulio De Donato
$consulHost = "bash_server.service.dc1.consul.";
$results = dns_get_record($consulHost, DNS_SRV);
// $result["host"]
// $result["port"]
// $result["pri"]
// $result["weight"]
// $result["class"]
// $result["ttl"]
// $result["type"]
// $result["target"]
DNS SRV is your friend18

39.
@liuggio Giulio De Donato
19 Use a log handler -visualize-

40.
@liuggio Giulio De Donato
20 Fast is better
a
b
c
Small Images eg. Alpine ~5mb
DockerFile use layer cache wisely
Build could be slow
(if you don’t follow the docker-way)
d Bad performance on large files

41.
WinningKeys
DEMO --- THE PERFECT ORCHESTRATION
EasilyDEPLOY
(LASTFEATUREPUSHED gracefully)
EasilyRollback
(LASTPUSHEDFEATUREgracefully)
Visualize
Share/Test/Commit/Merge
Infrastructure
liuggio

42.
THE PERFECT ORCHESTRATION
Processes respect your needs and:
- The Lead time is SHORT
- The Feedback is FAST
- The Improvement loop is INFINITE
@liuggio Giulio De Donato

43.
fewthings you have to Know in Ordertousedockerwith
OrchestrationinProductionlikeIdid,butnotreallylikeidid,
becauseIcried,Ireallycriedhard,sopleasedonotcrybecauselifeis
shortandyoushouldspendyourtimeenjoyingit.
ThankYou @liuggiojoind.in/talk/4b24e

44.
@liuggio Giulio De Donato
● http://www.infoq.com/articles/continuous-deployment-containers
● devops 2.0 the book
● www.welcometothebundle.com/isolate-a-process-with-no-container-like-docker
● https://github.com/opencontainers/runtime-spec/blob/master/config-linux.md#namespaces
● https://www.opencontainers.org/news/faqs/who-will-be-initial-technical-leadership
● http://www.cyberciti.biz/faq/unix-linux-chroot-command-examples-usage-syntax/
● http://s0.cyberciti.org/uploads/faq/2013/01/bash-chroot-ls-demo.gif
● https://www.flockport.com/lxc-vs-docker/
● http://ramirose.wix.com/ramirosen
● https://lwn.net/Articles/532593/
● https://lwn.net/Articles/531114/
● https://unsplash.com/photos/6wQId4r0uA4
CREDITS