testing infra automation

TESTING INFRASTRUCTURE AUTOMATION

ABOUT ME

•http://testreflections.wordpress.com/

•@suryasreevedula

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AGENDA

•What is “Infrastructure As Code”

•Why test Infrastructure Code?

•How to test Infrastructure Code?

•Test First Infrastructure Using Chef

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WHAT IS “INFRASTRUCTURE

AS CODE”

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WHAT IS “INFRASTRUCTURE”?

•App Servers

•DB Servers

•Config Servers

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TRADITIONAL AUTOMATION

•Not Re-usable

•Changes not usually tracked

•Config Values are not usually externalized

•Not usually / frequently tested

•Not easily accessible to the developer teams

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INFRASTRUCTURE AS “CODE”

•Reusable, Maintainable, Extensible and Testable infrastructure.

•Modularize Building Blocks of Infrastructure

•Apply Dev Principles like Inheritance and Composition

•Make Testable

•Version Control Changes like patches, upgrades

•Share modules across the community

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BUILDING BLOCKS

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Resources

Modules / Cookbooks

Nodes

Environments

IAC FRAMEWORKS

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WHY TEST “INFRASTRUCTURE

CODE”

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WHY TEST?

•To avoid errors in setting up environments

•To ensure platform coverage

•To ensure different possible system configurations for each platform

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HOW TO TEST “INFRASTRUCTURE

CODE”

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Ubuntu 10.0.4

System Tests

Unit Tests

Ubuntu 12.0.4

Unit Tests

System Tests

CentOS 6.4

Unit Tests

System Tests

TEST FIRST INFRASTRUCTURE

DEVELOPMENT

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CHEF TESTING ECO-SYSTEM

•Unit Tests - ChefSpec

•System Tests - ServerSpec

•Platform Tests - Test Kitchen

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CHEF TESTING ECO-SYSTEM

•Unit Tests - ChefSpec

•System Tests - ServerSpec

•Platform Tests - Test Kitchen

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DEMO STAGES

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Setup Platform

s

Write Server Tests

Add Infra Code

Add Unit Tests

Deploy on

Nodes

RESOURCES

•<Github Link>

•<Blog Post Links>

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Reach me at: !

@suryasreevedula

THANK YOU