How to Prevent Building a Serverless Monolith

@MarcDuiker

@MarcDuiker 2 Marc Duiker Developer Advocate

@MarcDuiker 3

@MarcDuiker 4

@MarcDuiker 5

@MarcDuiker 6

@MarcDuiker 7

@MarcDuiker 8

@MarcDuiker 9 https://en.wikipedia.org/wiki/Monolithic_application “In software engineering, a monolithic application describes
a software application that is designed without modularity.”

@MarcDuiker App Server DB Server

@MarcDuiker 11 Function App Function App Queue Database

@MarcDuiker 13

@MarcDuiker 14

@MarcDuiker 15

@MarcDuiker 16

@MarcDuiker 17

@MarcDuiker 18

@MarcDuiker 19

@MarcDuiker 20 https://www.atlassian.com/incident-management/kpis/common-metrics

@MarcDuiker 21 https://www.atlassian.com/incident-management/kpis/common-metrics

@MarcDuiker https://www.atlassian.com/incident-management/kpis/common-metrics

@MarcDuiker 23

@MarcDuiker 24

@MarcDuiker 25 Caused by the nature of the (business) problem.
Can’t be easily reduced. Caused by decisions we make related to architecture, frameworks, packages, code style etc. Can be reduced. https://en.wikipedia.org/wiki/Programming_complexity

@MarcDuiker 26 https://en.wikipedia.org/wiki/Programming_complexity Caused by decisions we make related to
architecture, frameworks, packages, code style etc. Can be reduced. Caused by the nature of the (business) problem. Can’t be easily reduced.

@MarcDuiker 27

@MarcDuiker 28

@MarcDuiker 29

@MarcDuiker 30

@MarcDuiker 31

@MarcDuiker 32

@MarcDuiker 33

@MarcDuiker 34

@MarcDuiker 35

@MarcDuiker 36

@MarcDuiker 37 Domain Bounded Context Bounded Context Bounded Context Bounded
Context https://thedomaindrivendesign.io/bounded-context/

@MarcDuiker “Ubiquitous language identifies the terms and concepts within a
bounded context that are unambiguous and agreed upon by all stakeholders.” https://thedomaindrivendesign.io/what-is-strategic-design

@MarcDuiker 39 Banking Context Ecommerce Context https://thedomaindrivendesign.io/what-is-strategic-design

@MarcDuiker 40

@MarcDuiker 41

@MarcDuiker 42

@MarcDuiker 43

@MarcDuiker 45

@MarcDuiker 46 Fan out Fan out No fan out No
fan out

fan out https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale#scale Use dedicated resource to its fullest

fan out https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale#scale Use higher tier / sku Use regular tier / sku

@MarcDuiker 49 Ask yourself these questions before adding any code:
- Do *I* need to write this? - Is this a good fit with the rest of the app? - What is the impact regarding resilience/complexity of the app?

@MarcDuiker 50 @az_func_updates http://bit.ly/marc-serverless

How to Prevent Building a Serverless Monolith

How to Prevent Building a Serverless Monolith

More Decks by Marc Duiker

Other Decks in Technology

Featured

Transcript