Advanced Terraform

20 February 2018

 

Stoyan Stoyanov

 

welt.de

Who are we?

whoami

Structure

  • Cross-functional teams
  • Every team has its own AWS Account
  • You build it, you own it

Tech Jungle

Motivation?

  • increase automation awareness 
  • reducing complexity

How our infrastructure code evolved

  • From bash to Chef
  • From private cloud to public cloud
  • ​From AWS CloudFormation to HashiCorp Terraform

Workflow

The State

  • Snapshot of the infrastructure
  • Can be local or remote with different backends

The State

The State

  • Outputs can be shared between "stacks" via remote states

Complexity

Centralized applying

The wrapper

Plan every hour

DRY

Versioning

Responsibility

Conventions

KISS

Do not reinvent the wheel

  • If for some reason there is no resource for the job
  • local-exec + awscli

Roundup

  • With great power comes great responsibility
  • Updates hurt sometimes :)

Advanced Terraform

By Stoyan Stoyanov

Advanced Terraform

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