Slide 1
Slide 1 text
Introduciendo Serverless en
Proyectos Python
Carlos Hernando
@chernando
Slide 2
Slide 2 text
Serverless Hype!
https://trends.google.com/trends/explore?date=2014-01-01%202017-08-27&q=serverless
Slide 3
Slide 3 text
No content
Slide 4
Slide 4 text
No content
Slide 5
Slide 5 text
Serverless
Slide 6
Slide 6 text
Saas / BaaS
Slide 7
Slide 7 text
Está usted aquí
Nuestra Aplicación
Slide 8
Slide 8 text
def handler(event, context):
# PONGA SU CÓDIGO AQUÍ
return
AWS Lambda
Slide 9
Slide 9 text
Serverless
Slide 10
Slide 10 text
https://aws.amazon.com/serverless/
Slide 11
Slide 11 text
Arquitectura Serverless
https://medium.com/cloud-academy-inc/serverless-beyond-functions-cd81ee4c6b8d
Slide 12
Slide 12 text
Escenarios
Slide 13
Slide 13 text
Scripts de “mantenimiento”
Slide 14
Slide 14 text
No content
Slide 15
Slide 15 text
AWS Lambda
Slide 16
Slide 16 text
def handler(event, context):
# PONGA SU CÓDIGO AQUÍ
return
Slide 17
Slide 17 text
No content
Slide 18
Slide 18 text
AWS Lambda
Desarrolladores
Credenciales
Base de datos
Servidores
Slide 19
Slide 19 text
Empaquetar
$ cd venv/lib/python3.6/site-packages/
$ zip -r9 ../../../../deploy.zip *
$ cd -
$ zip -g deploy.zip *.py
Slide 20
Slide 20 text
Crear Lambda
$ aws lambda create-function \
--region eu-west-1 \
--function-name SimpleScript \
--zip-file fileb://deploy.zip \
--role arn:aws:iam::XXX:role/MyLambdaRole \
--vpc-config SubnetIds=XXX,SecurityGroupIds=XXX \
--handler handler.handler \
--runtime python3.6 \
--profile personal \
--timeout 10 \
--memory-size 512
Slide 21
Slide 21 text
Actualizar Lambda
$ aws lambda update-function-code \
--region eu-west-1 \
--function-name SimpleScript \
--zip-file fileb://deploy.zip \
--profile personal
Slide 22
Slide 22 text
Aprendizajes
Slide 23
Slide 23 text
Tareas periódicas
Slide 24
Slide 24 text
# Crontab
30 08 10 06 * /root/full-backup
00 11,16 * * * /root/incremental-backup
00 09-18 * * * /root/check-db-status
00 09-18 * * 1-5 /root/send-updates
*/10 * * * * /root/consolidate-reports
@yearly /root/annual-maintenance
@monthly /root/steal-money
Slide 25
Slide 25 text
Celery workers
Celery Beat
Slide 26
Slide 26 text
No content
Slide 27
Slide 27 text
Celery Beat
Celery workers
Slide 28
Slide 28 text
AWS
Lambda
Cloudwatch
Events
Celery workers
Slide 29
Slide 29 text
def handler(event, context):
# PONGA SU CÓDIGO AQUÍ
return
Slide 30
Slide 30 text
>>> from tasks import add
>>> add.delay(4, 4)
Slide 31
Slide 31 text
>>> from celery import Celery
>>> app = Celery(broker=broker)
>>> app.send_task('tasks.add', args=[4,4])
Slide 32
Slide 32 text
No content
Slide 33
Slide 33 text
https://serverless.com
Slide 34
Slide 34 text
functions:
celeryless:
handler: celeryless.handler
events:
- schedule:
rate: rate(10 minutes)
input:
task: tasks.add
args: [4, 4]
Slide 35
Slide 35 text
Aprendizajes
Slide 36
Slide 36 text
APIs a pequeña escala
Slide 37
Slide 37 text
No content
Slide 38
Slide 38 text
API Gateway AWS Lambda
Slide 39
Slide 39 text
No content
Slide 40
Slide 40 text
SAM: Serverless Application Model
https://github.com/awslabs/serverless-application-model
Slide 41
Slide 41 text
https://github.com/aws/chalice
Slide 42
Slide 42 text
from flask import Flask
app = Flask(__name__)
@app.route("/")
def index():
return "Hello World!"
Slide 43
Slide 43 text
from chalice import Chalice
app = Chalice(app_name="helloworld")
@app.route("/")
def index():
return {"hello": "world"}
Slide 44
Slide 44 text
Aprendizajes
Slide 45
Slide 45 text
Eventos encadenados
Slide 46
Slide 46 text
Serverless Image resizing (AWS Lambda and AWS s3)
http://blog.kaliloudiaby.com/index.php/serverless-image-resizing-aws-lambda-and-aws-s3/
Slide 47
Slide 47 text
De $0,20 a $834
Slide 48
Slide 48 text
14 horas
$425
25.000.000 GB/s (290 días)
37.000.000 Invocaciones
AWS Lambda
Slide 49
Slide 49 text
No content
Slide 50
Slide 50 text
Serverless
Scripts Periódicos API HTTP
Slide 51
Slide 51 text
https://www.wdl.org/en/item/576/
Slide 52
Slide 52 text
Documentación de la charla:
https://bit.ly/pymad0917
Carlos Hernando
@chernando
Slide 53
Slide 53 text
•Photo by Chris Lawton
on Unsplash
•Photo by Maarten van
den Heuvel on Unsplash
•Photo by Markus Spiske
on Unsplash
•Photo by Teresa Kluge
on Unsplash
•Photo by Dan Paul on
Unsplash
•Photo by Mike Alonzo
on Unsplash
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
https://creativecommons.org/licenses/by-sa/4.0/
Imágenes cortesía de: