If you implement a microservice architecture correctly, you will end up with a proliferation of different microservices; with multiple instances of each one for redundancy. Find out how you to get microservices to automatically discover each other, share a configuration with real-time updates. See how to eliminate server management altogether with "serverless" microservice frameworks.

1. Microservice Plumbing
Selecting the right tool for the job
Glynn Bird
Developer Advocate @ IBM Cloud Data Services
glynn.bird@uk.ibm.com
@glynn_bird www.glynnbird.com

2. The monolith

3. Unix philosophy
"Write programs that do
one thing and do it well.
Write programs to work
together. "
Doug McIllroy

4. Command-line tools
• Simple tools that do one job
• Can be piped together to create streams of work
• Share common data format

5. Command-line tools
cat test.txt | grep "cake" | sort –u | wc -l

6. Scalability

7. Scalability

8. My definition of microservices
• Small dedicated applications that do one job
• Can be composed
• Share common data format

9. Plumbing Microservices
• HTTP API
• Or, feed from a queue
• Or both

10. Traditional app
Metrics Collector v1
Database

11. Microservices app
Metrics
Collector
MicroService
Storage
queue/pubsub
Analytics
RT
Dashboard

12. Queue

13. PubSub

14. Queue/Hub/MessageBroker technologies
Redis
in-memory database with list and pubsub features
RabbitMQ
scalable message queue and pubsub hub
Apache Kafka
hugely scalable message hub

15. Metrics Collector Microservice

16. Database-as-a-Service
• Spin up a database
• Try it out
• If it’s not for you, kill it
• P.A.Y.G
compose.com

17. Discovery & orchestration

19. Off-the-shelf Microservices
"serverless"

20. OpenWhisk

21. "Alexa, what's up?"
Amazon
Echo
OpenWhisk
Alexa

22. Actions
# mycode.js
var main = function(msg) {
var r = {
version: "1.0",
response :{
shouldEndSession: true,
outputSpeech: {
type: 'PlainText',
text: 'The quick brown fox jumped over the lazy dog.'
}
}
};
return r;
}
wsk action create myaction mycode.js

23. Chatbots demo

25. Petition System

26. Petition verification

27. Petition microservices

28. Read more at www.glynnbird.com

29. Developer Advocate
Glynn.bird@uk.ibm.com
Thanks
Glynn Bird
Blog: www.glynnbird.com
Twitter: @glynn_bird