Terraform
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Terraform is a tool for provisioning and managing infrastructure safely and efficiently. It allows infrastructure to be defined as code so it can be versioned, shared, and treated like any other code. Key features include showing execution plans so changes are not a surprise, building a graph of dependencies to parallelize changes, and enabling complex automated changesets to infrastructure. Operators use Terraform for the benefits of infrastructure as code, managing multiple cloud platforms through a single workflow, and providing self-service infrastructure through reusable modules.
Terraform
- 1. 1 Terraform
- 2. 2 Agenda Problems What’s Terraform? Key features & benefits Demo
- 3. 3 Provisioning Problems Provisioning of the past • Manual • Shell, Perl, Python scripts. Extra knowledge required => bottleneck for team growth Pure-ops task => devs & ops talking over a wall Provisioning today • Chef, Puppet, Salt, Ansible Knowledge codified, faster, less error, devs and ops closer
- 4. 4 Provisioning Problems (cont) Infrastructure today
- 5. 5 What is Terraform? Terraform is a tool for provisioning infrastructure. A tool for building, changing, and versioning infrastructure safely and efficiently. Terraform provides a consistent workflow for operators to provision infrastructure across public cloud, private cloud, and external services Open-source, written in Golang
- 6. 6 Key features Infrastructure as Code • Infrastructure is described using a high-level configuration syntax. • This allows a blueprint of your datacenter to be versioned and treated as you would any other code. • Additionally, infrastructure can be shared and re-used Execution Plans • Terraform has a "planning" step where it generates an execution plan. • The execution plan shows what Terraform will do when you call apply. • This lets you avoid any surprises when Terraform manipulates infrastructure
- 7. 7 Key features (cont) Resource Graph • Terraform builds a graph of all your resources, and parallelizes the creation and modification of any non-dependent resources. • Because of this, Terraform builds infrastructure as efficiently as possible, and operators get insight into dependencies in their infrastructure • Change Automation • Complex changesets can be applied to your infrastructure with minimal human interaction. • With the previously mentioned execution plan and resource graph, you know exactly what Terraform will change and in what order, avoiding many possible human errors
- 8. 8 Why operators use Terraform? Infrastructure as code Enable automation and configuration reuse to quickly and safely provision infrastructure at any scale. Human readable HashiCorp Configuration Language (HCL) Separate plan and apply phase Declarative configurations
- 9. 9 Why operators use Terraform? (cont) Cloud platform management A workflow to provision and manage any infrastructure without losing the full capabilities of each cloud. 70+ infrastructure providers 1000+ resources Automatically reconcile dependencies
- 10. 10 Why operators use Terraform? (cont) Self-service infrastructure Provide verified modules to give Terraform users easy access to templates to set up and run their cloud-based infrastructure. Module Registry with public UI Modules contributed by community & providers Clean code for simple reuse
- 11. 11 Demo
Editor's Notes
- #4: provisioning involves the process of preparing and equipping a network to allow it to provide (new) services to its users. In general, provisioning means "providing" or making something available
- #9: Declarative programming is when you write your code in such a way that it describes what you want to do, and not how you want to do it
- #10: Declarative programming is when you write your code in such a way that it describes what you want to do, and not how you want to do it
- #11: Declarative programming is when you write your code in such a way that it describes what you want to do, and not how you want to do it