Infrastructure on melastmohican.github.io

Terraform Best Practice Guide for Developers

Sat, 21 Mar 2020 12:36:30 -0700

Terraform is an open-source infrastructure as code software tool created by HashiCorp. It enables users to define and provision infrastructure using a high-level configuration language known as Hashicorp Configuration Language (HCL), or optionally JSON. Terraform is platform-agnostic; you can use it to manage bare metal servers or cloud servers like AWS, Google Cloud Platform, OpenStack, and Azure. Terraform enables you to safely and predictably create, change, and improve infrastructure. It is an open-source tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.

Migrating existing AWS infrastructure to new acount

Thu, 05 Mar 2020 13:37:39 -0800

Scenario Link to heading

We want to migrate hundreds of AWS resources to a new account. Up to now, all resources were created manually using AWS Console or CLI tool.

CloudFormation Link to heading

CloudFormation is the inhouse cloud provisioning tool of AWS for declaratively describing your cloud resources.

CloudFormation is a hard, complex, inconsistent and badly documented piece of software. A stack is an atomic collection of resources in CloudFormation. Its creation or update succeeds only and only if all the resources within the stack succeed. A failure within a stack update leads to a rollback back to the previous state.