Just Code or How I learned to write code and stop worrying about the environment

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Just Code How I learned to write code and stop worrying about the environment

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Cómo crear un entorno de desarrollo que pueda ser llevado a producción

Transcript of Just Code or How I learned to write code and stop worrying about the environment

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Just CodeHow I learned to write code and stop worrying

about the environment

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¡Hola !

Enrique SánchezTester & Automation EngineerPhD Student

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• Technical Team Leader y Responsable Técnico del Área de Testing en

!!!• Más de 3 años de experiencia en testing en empresas como !!

!• Evangelista BDD y Agile

¿Quién soy?

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¿Por qué esta charla?

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¿Cuántas veces hemos intentado probar un “juguete” nuevo y hemos dejado el ordenador lleno de basura?

¿Cuántas veces tenemos que luchar contra configs porque tenemos una versión de SO “especial”?

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¿Por qué si intentamos subir a producción/integrado/el ordenador de al lado un código que en nuestro local funciona pero que mágicamente deja de funcionar?

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¿¿¡¡Por qué no puedo sólo programar!!??

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Pongamos un Caso PrácticoEl extraordinario caso de Joan y Enric

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Joan y Enric son dos colegas que tienen una idea…

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Crear un programa con las tecnologías más

hipsters del momento y vendérselo a

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Enseguida empiezan a pensar y les salen unas cuantas tecnologías que pueden usar:

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Tras arduas discusiones deciden que usarán un SO concreto para desarrollar

!

!

Y llevarán su aplicación a Amazon Web Services

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¿Problemas?

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Hacer pruebas ahí es muy caro

Tienen que estar conectados por ssh constantemente

Es un engorro tener que pusiera constantemente a un repo para hacer pruebas en remoto. ¿Qué pasa si se rompe algo?

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Virtualización

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Enric investiga por Internet y descubre algo llamado

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¿Qué es Vagrant?

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Vagrant es un gestor de máquinas virtuales

Permite provisionar las máquinas mediante un archivo de configuración llamado Vagrantfile

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Puede ser provisionado usando: Bash,Puppet,Chef,Docker…

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Permite tener versionado la forma en la que se provisiona una máquina (virtual o física)

Pueden hacer pruebas en local sin miedo a romper nada

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Además descubre una cosa llamada

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¿Qué es Packer?

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Packer is a tool for creating identical machine images for multiple platforms from a single source

configuration.

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Packer permite crear una máquina virtual precompilada

Puedes tener la misma versión para producción (Amazon) y para local (Vagrant)

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Packer +Vagrant + Puppet

Demo I

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Joan y Enric están muy felices y contentos, tienen un entorno para jugar y hacer experimentos

Joan se encargará del Front y Enric del Back

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Joan decide usar                  y

!

Enric piensa que NodeJS es muy bonito pero que prefiere y que mejor usa

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Joan y Enric se paran a pensar y dibujan un esbozo de cómo sería la arquitectura

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Fron

t End

Back

End

Hype

Queu

eDB

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JHipster

http://jhipster.github.io/

http://jhipster.github.io/
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¿Cómo metemos esto en una VM?

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¿Puppet, Chef, Bash? Están bien para pequeñas cosas pero levantar un servicio es un “poco” más complejo de lo que parece

Además, ¿qué pasa si queremos que las BBDD estén en otra máquina?

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Docker is an open platform for developers and sysadmins to build, ship, and run distributed

applications.

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Extiende LXC (contenedores que corren en paralelo sobre la misma máquina anfitriona)

No emula una máquina virtual completa ni corre un sistema operativo íntegro dentro de ella, a costa de quedar “atado” al sistema operativo anfitrión, que se expone a las aplicaciones

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¿Cómo gestionan el software?

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flow

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Vagrant + Puppet + Docker + stack

Demo II

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Pero el código aumenta y hackear en paralelo a ver qué se consigue deja de ser una opción si quieren conseguir algo más estable.

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Pero el código aumenta y hackear en paralelo a ver qué se consigue deja de ser una opción si quieren conseguir algo más estable.

Integración

Continua

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¿Qué es IC?

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Continuous Integration is a software development practice where members of a

team integrate their work frequently (…)

Each integration is verified by an automated build (including test) to detect integration errors

as quickly as possible

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Un job para Máster …

otro que pruebe Release …

otro para Develop/Rama …

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otro para desplegar el código en los entornos

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Una vez que el software funciona hay que desplegarlo en Amazon…

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Una vez que el software funciona hay que desplegarlo en Amazon…

Artefactos, versiones del front…

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Rock’n’roll

Demo III

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Preguntas?Gracias!

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Enrique Sánchez | [email protected] | @EnriqueSanchezB

mailto:[email protected]?subject=

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