This document discusses the differences between traditional and cloud-native architectures. Traditional architectures are monolithic, stateful, and operator-focused, while cloud-native architectures are distributed, stateless, and developer-focused. The document also outlines several principles of cloud-native design like designing for failure, embracing automation, and treating infrastructure resources as cattle rather than pets.

1. Tale Of Two Workloads

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Presenter
Kenneth Hui
Technology Evangelist
Rackspace
Twitter: @hui_kenneth

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Workload dictates architecture

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Traditional design principles
Monolithic architecture
Stateful Services
Operator focused

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Design goal: Resilient infrastructures

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Cloud-native design principles
Distributed architecture
Developer focused
Stateless Services

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Design assumption: Fragile infrastructures

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What’s Wrong with the Cloud?
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We architect clouds for rapid scale
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Chaos and failures are inevitable at scale
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So design for failure
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Let the Application Handle It’s Own Resiliency
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Build Loosely-Coupled Distributed Systems
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Message Bus

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Focus on Scaling Horizontally
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Choose Cattle Over Pets
• Pets needs care and feeding
– Name the VM
– Tune and groom regularly
– Feed pets with good food and supplements
– Take pets to the vet when they are sick
• Cattle are disposable
– Cloud instances are not unique
– Tune and groom apps not the cattle
– Replace when necessary
– Shoot the cattle when it is sick

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Embrace Automation and Cultural Change
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