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Serverless Python

Michael Bright , Trainer @mjbright Consulting

26 January 2019, DevConf.cz, Brno

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About Myself

  • British - living in Grenoble, in the French Alps

  • Cloud Native Trainer @mjbright

  • Docker Community Lead

  • Python User Group Creator

  • Kubernetes CKA

  • Crazy about Open Source and Cloud Technologies


Serverless Computing

  • What Is Serverless?

  • Review of Cloud Provider Offerings

    +CNCF Serverless WG

  • Open Source Tools

    Demo of Chalice/Lambda

  • Open Source Platforms

    Demo of OpenFaaS
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What Is Serverless?


  • Serverless

    - No more servers ?!
    - The ultimate
    "Cloud Native" ?

  • FaaS + BaaS

    - Functions as a Service
    - Back-ends as a Service
    - Functions glue together API-based back-end services

  • Serverless: a paradigm

    - & a company
    - & a tool
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Serverless - What Is it?

At the peak of the Hype Cycle!!

  • Not caring about servers

    • Developers focus on apps
    • Platform provider
      • - Provisions
      • - Auto-scales
      • - Maintains

  • Pay as you go


    - (*)Pay for real (fn) usage
    - (*)No initial investment
    - (*)High availability for free
    - Great for startups

  • Agile


    - Short time to market
    - Enables innovation
    - (*)Massive scale on demand 
 
* - These are the promises of Serverless

Serverless - The making of ...

  • BMs

    Baremetal

  • VMs

    Virtual Machines

  • Containers

    Containers

  • Serverless

    Serverless

Continuum : to faster, lighter-weight cloud deployments.

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Serverless - an Event Driven Architecture

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Serverless - Cloud Providers

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Serverless - Main Cloud Provider Offerings

  • AWS / Lambda

    AWS Lambda

  • Azure / Azure Functions

    Azure Functions

  • Google Cloud Functions

    Google Cloud Functions

  • IBM Cloud Functions

    IBM Cloud Functions

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AWS_Lambda

AWS Lambda

Introduced βeta in Nov 2014
Leader in developer uptake, back-end services and eco-system.

Language choices: Node.js (JS), Python, Java 8, C#, VB/F#

NEW Features [Reinvent 2017] - Go(static binaries) and .Net(C#), SAM for off-line debugging

Cost: Free tier: 1 mn req/mth, then $0.00001667/GBy-sec details
Strengths: Created the space, enormous ecosystem, Cloud9 IDE?
Weaknesses: A little slow, limited languages, lock-in

TO_EDIT

Azure Functions

Introduced in 2016

Many language choices:

GA: JavaScript, C#, F#, Python

Exp: Python, PHP, Typescript, Batch/Bash, PowerShell, Java

OpenSource runtime: https://github.com/Azure/azure-functions-host

Excellent Developer Tools Azure Portal, Advisor, Visual Studio, Team Studio, DevOps

TO_EDIT

Google Cloud Functions

Alpha release in Feb 2016.

Language support: Node.js/JS and Python(beta).
TO_EDIT

IBM Cloud Functions

Experimental release in Feb 2016

Open Sourced as Apache OpenWhisk https://github.com/apache/incubator-openwhisk

Runtime support: Events support:

AWS Lambda: Use Case - Smart News

AWS_Lambda
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Potentially huge cost savings for your business, or not ... Source: "The hidden costs of serverless"

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The CNCF Created a Serverless WG

CNCF Serverless

We need open standards for Serverless

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kNative

Google kNative

Google released kNative in 2018
A framework for providing common facilities to Serverless platforms.
  • Orchestrating source-to-container builds
  • Event binding
  • Traffic management
  • Built on Kubernetes and Istio

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Serverless - Open-Source Tooling


  • Hundreds of Open-Source tools facilitate development, testing and deployment
  • See awesome-serverless
  • Some tools seek to support multi-language,
    some multi-platform or a combination ...

Some Important Frameworks


Serverless(.com)
apex(.com)
Zappa, Chalice (AWS Lambda/Python)

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Serverless Python !!

Serverless Python Frameworks ...

  • Apex

    Apex

    Supports:

    • Javascript
    • Python
    • ++ Go
  • Chalice

    Chalice

    Supports:

    • Python / Flask-like
  • λambdify

    λambdify

    Supports:

    • Python
  • Zappa

    Zappa

    Supports:

    • Python / WSGi
    • Flask / Django
Other platforms: κappa, Python-λ, ...
TO_EDIT

Chalice

Open sourced by AWS - Python/AWS λ

pip installable module, command-line tool

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Demo Time - Chalice !

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Serverless - Open Source Platforms

  • Kubeless

  • Fission

  • Apache OpenWhisk

  • OpenFaaS

  • Fn Project

  • Nuclio

  • Spring Cloud Functions

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TO_EDIT

OpenFaaS



  • OpenFaaS runs on Docker-Swarm or Kubernetes
  • Bring Your Own Container
  • Portal with Function Store
  • faas-cli: command-line tool
  • FaaS-Netes runs on Kubernetes
  • A young project with a vibrant community of volunteers
  • Easy to get started, many guides and blog posts from community
  • Integrates Prometheus
  • OpenFaaS Cloud initiative for GitOps


Alex Ellis, Docker Captain, *VMWare*
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OpenFaaS - Architecture


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OpenFaaS - Finnian Anderson, Colourising Video with OpenFaaS

TO_EDIT
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Demo Time - OpenFaaS !

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To Summarize



  • Serverless is still a young technology
  • It has a lot of promise for many workloads
  • There are real cost savings to be made on opex and capex
  • Major cloud players are investing in the technology
  • There are many deployment choices today
  • We need an open cloud


Resources - 1

Resource Description URL
Lists
awesome-serverless Curated list of awesome services, solutions and resources for serverless / nobackend applications. [github] anaibol/awesome-serverless
awesome-Serverless(.com) Curated list of resources related to serverless architectures and the Serverless Framework [github] JustServerless/awesome-serverless
Tools
Serverless Tools for deploying to several Cloud Providers [github] serverless/serverless
Apex Tools for deploying to AWS Lambda [github] apex/apex

Resources - 2

Resource Description URL
Cloud Providers
AWS Lambda Amazon's Serverless Platform https://aws.amazon.com/fr/lambda/
Azure Functions Microsoft's Serverless Platform https://azure.microsoft.com/en-us/services/functions/
Google Cloud Functions Google's Serverless Platform https://cloud.google.com/functions/
IBM Cloud Functions IBM's Serverless Platform https://www.ibm.com/cloud-computing/bluemix/openwhisk

Resources - 3

Resource Description URL
Open Source Serverless Platforms
Kubeless Serverless platform from Bitnami url
Fission.io Serverless platform from Platform9 url
Apache OpenWhisk Serverless platform from IBM url
OpenFaaS Serverless platform from Alex Ellis, Docker Captain url
Serverless Python Frameworks
Apex Serverless framework supporting Python and other languages url
Chalice Serverless framework supporting Python / Flask url
Lambdify Serverless framework supporting Python url
Zappa Serverless framework supporting Python / WSGi url

Thanks !



@mjbright

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