Infrastructure as code with terraform

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Infrastructure as Code with Terraform Giovanni Toraldo Lead developer @ClouDesire Twitter: @gionn #coderstug #apericoder

Transcript of Infrastructure as code with terraform

Page 1: Infrastructure as code with terraform

Infrastructure as Code with Terraform

Giovanni ToraldoLead developer @ClouDesire

Twitter: @gionn#coderstug #apericoder

Page 2: Infrastructure as code with terraform
Page 3: Infrastructure as code with terraform

What is Terraform? Like vagrant, but for production

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Features

● Build, change, destroy resources:○ IaaS: AWS, DigitalOcean, GCE, OpenStack

○ PaaS: Heroku, CloudFoundry

○ SaaS: Atlas, DNSimple, CloudFlare

● Current state is versioned

● Generates an execution plan to transition

from current state to the desired state

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Use cases

● Multi-tier applications (easy scale up/down)

● Self-service clusters (production-like)

● Demos (vagrant on clouds)

● Disposable environments (staging/QA)

● Multi-cloud environments

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Demo time!https://gist.github.com/gionn/787a3fc379eeac0ce01f

https://gist.github.com/gionn/787a3fc379eeac0ce01f
https://gist.github.com/gionn/787a3fc379eeac0ce01f
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How we use it in ClouDesire

● To manage infrastructure and DNS for on-demand staging and productions:○ Before: everything by hand, using GUI○ Now: everything with terraform, state versioned on

git

● Custom script to generate ssh_config:https://gist.github.com/gionn/fabbd0f6d6ad897d0338

Used by fabric to knows on which nodes chef-solo should be launched

https://gist.github.com/gionn/fabbd0f6d6ad897d0338
https://gist.github.com/gionn/fabbd0f6d6ad897d0338
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More?

● Modules can be created to encapsulate

resources in a reusable way

● State push/pull to remote: S3, HTTP, Atlas

● Atlas integration: SaaS control room for

teams, managed by HashiCorp

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Cheers!


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