Distributed System explained (with NodeJS) - Bruno Bossola - Codemotion Milan 2016
PHP is the king, nodejs is the prince and Python is the fool - Alessandro Cinelli - Codemotion Rome...
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ROME 27-28 march 2015 Alessandro Cinelli (cirpo) PHP is the king, nodejs is the prince, Python the fool
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Transcript of PHP is the king, nodejs is the prince and Python is the fool - Alessandro Cinelli - Codemotion Rome...
ROME 27-28 march 2015
Alessandro Cinelli (cirpo)
PHP is the king, nodejs is the prince, Python the fool
ROME 27-28 march 2015
Alessandro Cinelli (cirpo)
dubai
dubai
namshi
namshinamshi
Namshi
almost 3 years old
~350 ppl
IT team ~15 ppl
million+ visits per month
serving the UAE and GCC
ARCHITECTURE
a monolithic architecture
so far so good… but we started growing…
“we need a brand new feature for the warehouse…”
SOA
Service Oriented Architecture
“A software design based on discrete software components, "services", that collectively
provide the functionalities of the larger software application”
– A.Nadalin (@_odino_)
“Microservice Architecture" […] a particular way of designing software applications as suites of
independently deployable services…”
– M.Fowler
FULL STACK IS DEAD!
services as LEGO bricks
UNIX Philosophy
“Write programs that do one thing and do it well.”
SOA BENEFITS
SOA BENEFITS
scalability
SOA BENEFITS
scalability avoid single point of failure
SOA BENEFITS
scalability avoid single point of failure easier and faster deploys
SOA BENEFITS
scalability avoid single point of failure easier and faster deploys isolation
SOA BENEFITS
scalability avoid single point of failure easier and faster deploys isolation maintainability
SOA BENEFITS
scalability avoid single point of failure easier and faster deploys isolation maintainability easier to replace existing parts
How do you connect services?
HTTP
A protocol that is almost 25 years old and is here to stay!
GET vs POST
GET vs POST“The difference is that in
a GET request you have the parameters in the url ,
with
a POST the parameters are in the request’s body”
answered by 80% of candidates during the interview
“you don’t know HTTP? you shall not pass”
- Gandalf
RabbitMq
using crons!
RabbitMq
publish consume
q u e u e
RabbitMq
Language and protocol format agnostic
RabbitMq
Language and protocol format agnostic You can easily create an event driven architecture
RabbitMq
Language and protocol format agnostic You can easily create an event driven architecture Messages stay in the queue if a service goes down
RabbitMq
Language and protocol format agnostic You can easily create an event driven architecture Messages stay in the queue if a service goes down Too many messages? add more consumers!
PHP
PHPIt follows standards (PSR-*)
PHPIt follows standards (PSR-*)
Decoupled components
PHPIt follows standards (PSR-*)
Decoupled components
Huge and active opensource community
PHPIt follows standards (PSR-*)
Decoupled components
Huge and active opensource community
Easy to plug in your domain code
PHPIt follows standards (PSR-*)
Decoupled components
Huge and active opensource community
Easy to plug in your domain code
Not just a framework, but a project…
PHPIt follows standards (PSR-*)
Decoupled components
Huge and active opensource community
Easy to plug in your domain code
Not just a framework, but a project…
Designed starting from the HTTP protocol
PHP
bundle -> app -> service
PHP
UserBundle
WarehouseBundle
CheckoutBundle
ProductBundle
[…]
Once you have a SOLID set of api foundation you can easily start building other awesome applications
PHP - Silex
the PHP micro-framework based on Symfony2 Components
PHP - Silex
Let’s eat those apis!
Javascript
JavascriptTwo way data-binding Single page application Built-in services on top of XHR Routing Controller Model
JavascriptTwo way data-binding Single page application Built-in services on top of XHR Routing Controller Model
it’s a MVW framework: Model-View-Whatever
Javascript
Javascript
Javascript
Javascript
party time!
FROM STATEFUL TO STATELESS
Removed server sessions Sessions on the client (localstorage)
STATELESS
JSON Web Signaturehttp://tools.ietf.org/html/draft-jones-json-web-signature-04
PHP -JWS
PHP -JWS
double party time!
let’s do the same with the desktop website!
some customers were experiencing some issues…
JAVASCRIPT
JAVASCRIPT
JAVASCRIPT
we rebuilt the desktop website in two weeks!
JAVASCRIPT
Rapid application development Quick setup Event driven Javascript!
why node?
github.com/namshi/mockserver
mockserver mock your APIs in a matter of seconds!
JAVASCRIPT
JAVASCRIPT
JAVASCRIPT
mockserver
JAVASCRIPTusers_GET.mock file
mockserver
JAVASCRIPT
mockserver
JAVASCRIPT
shisha
.smoke file
JAVASCRIPT
shisha
REDIS
REDISKey types: lists, hashes, sets, sorted sets
REDISKey types: lists, hashes, sets, sorted sets Persistent to disk
REDISKey types: lists, hashes, sets, sorted sets Persistent to disk Up to 512MB per key
REDISKey types: lists, hashes, sets, sorted sets Persistent to disk Up to 512MB per key Pub/sub
REDISKey types: lists, hashes, sets, sorted sets Persistent to disk Up to 512MB per key Pub/sub Transactions with optimistic locking
PYTHON
PYTHONData analysis
Small app with flask
Sys scripts
DOCKER
“Operating-system-level virtualization is a virtualization method where the kernel of an
operating system allows for multiple isolated user space instances, instead of just one.
Such instances, often called CONTAINERS, or jails, may look and feel like a real server from
the point of view of its owners and users.”
http://en.wikipedia.org/wiki/Docker_%28software%29
lego
ONE CONTAINER =
ONE COMMAND
DIFFERENCE BETWEEN A VM AND DOCKER
HOST OS
GUEST OS
HYPERVISOR
BIN/ LIBS
APP A
APP CAPP B
GUEST OS
BIN/ LIBS
APP Z
APP HAPP B
GUEST OS
BIN/ LIBS
APP A
APP DAPP L
HOST OSDOCKER ENGINE
BIN/ LIBS
APP ABIN/ LIBS
APP ZBIN/ LIBS
APP DBIN/ LIBS
APP B{ {
VM
CURRENT ARCHITECTURE
other clients
WHAT’S NEXT?
(more)
(maybe)
il mondo è bello perché è vario
The world is beautiful because it is varied
il mondo è bello perché è vario
il mondo è bello perché è vario
The world is beautiful because it is varied
open your mind…
use the right tool
you can solve problems in different ways
thanks
tech.namshi.com/join-us
tech.namshi.com
github.com/namshi
@TechNamshi we are hiring!
thanks
https://farm3.staticflickr.com/2199/2365883747_3a5c753719_o.jpg https://www.flickr.com/photos/karen_roe/8912245799
https://www.flickr.com/photos/anaxila/367953499/sizes/l https://www.flickr.com/photos/onigiri_chang/5356325784/sizes/o/
http://www.slideshare.net/odino/soa-with-symfony2-confoo-2014-in-montreal-ca https://www.flickr.com/photos/ejpphoto/2314610838/sizes/o/
https://www.flickr.com/photos/cesarastudillo/3981364314/sizes/l https://www.flickr.com/photos/piers_nye/2501994750/sizes/o/
https://www.flickr.com/photos/36247316@N00/3108399560/sizes/o/ https://www.flickr.com/photos/ironpoison_photos_69/9604127837/sizes/k/
https://www.flickr.com/photos/chrisschoenbohm/5104367911/sizes/l
credits
