Microservices without ServersJonathan Kaufman • IBM • QCon San Francisco • @kauffecup

Servers Are Killing Your Productivity

Idea Profit

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Hard Drive Fails

Linux OS Vulnerability

Middleware Version Update

Upgrade Network Infrastructure

More Memory and Bigger CPU

DB Table Index Gets Corrupted

Get Another Server…

Wasn’t the Cloud Supposed to Fix This?

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“Computing as a Utility”

source: https://flic.kr/p/5aHJFh

Power Sub-Station?

source: http://i22.photobucket.com/albums/b344/GlassCurtain/Substation.jpg

No Escape...

source: http://bit.ly/1ozGfzK

average utilization

20% - 40%

of capacity

What Can We Do?

AWS Lambda

…why is this different?

“runs code in response to events, managing the computing resources”

functions as a service

ƒ(x)

Scaling: 0 to N

ƒ(x) ƒ(x) ƒ(x) ƒ(x) ƒ(x) ƒ(x) ƒ(x)

ƒ(x) ƒ(x) ƒ(x) ƒ(x)

ƒ(x)

ƒ(x)

ƒ(x)

ƒ(x)

ƒ(x)

ƒ(x) ƒ(x)

ƒ(x)

ƒ(x)

ƒ(x)

Pay-As-You-Go

a loves dc, https://www.flickr.com/photos/alovesdc/3466740007, CC (BY) license

http://uk.businessinsider.com/amazon-web-services-lambda-explained-2015-11

"One happy lambda customer saving 80% off their cloud bills"

Isn’t this just Platform-As-A-Service?

https://twitter.com/adrianco/status/736553530689998848

Spoilers…

…there’s still servers.

Enough Talking, Bring on the Code.

Weatherbot

source: uk.reuters.com/article/us-life-selfies-idUKKCN0R305L20150903

IBM Openwhisk

➜ workspace: git clone https://github.com/openwhisk/openwhisk.git

➜ workspace: cd openwhisk

➜ openwhisk: vagrant up

my_service.js

function main(params) { // code code code

return { ... }; }

my_service.js

Entry Point Event Parameters

Service Result

import com.google.gson.JsonObject; public class Hello { public static JsonObject main(JsonObject args) { // code code code JsonObject response = new JsonObject(); // some more code return response; } }

my_service.java

Entry Point Event Parameters

Service Result

Actions

REST

RESTAPI

Triggers

Challenges

Compute Limits

zund, https://www.flickr.com/photos/zund/12202485675, CC (BY-NC-ND) license

Monitoring, Debugging, and Testing

Thomas Hawk, https://www.flickr.com/photos/thomashawk/4544013443, CC (BY-NC) license

Complexity

bitterjug, https://www.flickr.com/photos/bitterjug/7670055210, CC (BY) license

Frameworks

Servers Are Killing Your Productivity

source: http://gunshowcomic.com/648

https://twitter.com/patrickdebois/status/734459440603275264

Ditch Your Servers.

Upgrade Your Productivity.

https://github.com/openwhisk

https://dwopen.slack.com#openwhisk

https://stackoverflow.com/questions/tagged/openwhisk

@openwhisk or @kauffecup

http://jkaufman.io/microserves-without-servers-talk