Break-up with your Server

But don't commit to a cloud platform.

Linda Nichols

@lynnaloo

Norfolk.js

norfolkjs.org

RevolutionConf

Virginia Beach, VA

Today, we're going to break-up with our servers.

@lynnaloo

But we're not going to commit to a cloud platform.

@lynnaloo

Because developers have commitment issues.

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Even when they have a great partner.

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Amazon Web Services

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IBM Bluemix

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Microsoft Azure

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Google Web Toolkit

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When someone says, "serverless"* ...

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* "Serverless" is just a catchy, made-up, marketing term.

Kind of like, "Cloud."

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They don't mean ...

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They probably mean ...

AWS Lambda

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Or generally, Serverless Functions (FaaS).

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Functions-as-a-Service (FaaS)

Stateless functions running in containers managed by a service provider (not you!).

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Serverless Architecture?

But "Serverless" isn't really about a platform or compute product...

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Serverless Architecture?

It's about the events!

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Serverless Architecture

  • Storage

  • IoT

  • Database Actions

  • API Gateway

  • Queues and Topics

  • Logging

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How do you go "serverless" without vendor lock-in?

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Option #1:

Roll your own containers

  • OpenFaaS

  • Kubeless

  • Iron.io

  • OpenWhisk

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Option #2:

Commit to multi-provider framework

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Serverless Framework:

  • Open-source

  • Abstracts and automates provider-specific tasks

  • Multi-provider plugin system

  • Scaffold and deploy using CLI

@lynnaloo

Get started.

# Install serverless cli
$ npm install serverless -g

# Create AWS Service
$ serverless create --template aws-nodejs --path cat-name-service

# Change into the service directory
$ cd cat-name-service

# Deploy to cloud provider
$ serverless deploy -v
cat-name-service/
  package.json
  serverless.yml
  handler.js 
dog-name-service/
  package.json
  serverless.yml
  handler.js
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Configure Service and Events.

#serverless.yml

service: cat-name-service

provider:
  name: aws
  runtime: nodejs6.10

functions:
  catName:
    handler: handler.getCatName

    events:
      - http:
          path: cats/name
          method: get

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Create Handler.

'use strict';

const catNames = require('cat-names');

function getCatName(event, context, callback) {
    callback(null, { payload: `Your cat name is ${catNames.random()}.` });
}

module.exports.getCatName;

(then package and/or deploy it!)

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What about the platform-specific services?

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'use strict';

const catNames = require('cat-names');
const AmazonDb = require('amazon-db-module');

function getCatName(event, context, callback) {
    const amazonDb = new AmazonDb();
    const catName = catNames.random();
    amazonDb.update(catName);
    callback(null, { payload: `Your cat name is ${catName}.` });
}

module.exports.getCatName;
'use strict';

const catNames = require('cat-names');
const GoogleDb = require('google-db-module');

function getCatName(request, response) {
    const googleDb = new GoogleDb();
    const catName = catNames.random();
    googleDb.update(catName);
    return response.status(200).send(`Your cat name is ${catName}.`); 
}

module.exports.getCatName;
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Demo Time!

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github.com/lynnaloo/beatlemania

Demo Time!

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Thank You!

@lynnaloo

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