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Design by Contract in Terraform. Understanding custom condition checks — betterprogramming.pub

Bill Mfundo presents a perspective on custom condition checks as a design by contracts approach for writing Terraform modules. AB: Unfortunately, the inability to reference other resources' attributes and variables in various places in conditions significantly limits such implementation.

🙌 News from the sponsor 🙌

Beware of depends_on for Terraform modules. It might bite you! — itnext.io

Daniel Jimenez Garcia wrote a great article about using depends_on meta-argument in Terraform modules and various corner cases. AB: Read this post if you see data... will be read during apply in your terraform plan.

Terraform Engineering Strategies, Part 1 — Make Your Modules Thread Safe — medium.com

Haris Khan wrote a post pointing out the importance of proper scoping of the Terraform Modules as a requirement to work around several limitations of Terraform (e.g. variables in lifecycles, module dependencies, catch-22).

CDK for Terraform vs Pulumi — medium.com

An overview of tools and approaches by Ana Jovanovska. AB: I prefer Pulumi if I suddenly have to choose between CDK for Terraform or Pulumi.

Terra Weather: A Weather App Using Terraform

Jamie Phillips shows a way to use postcondition blocks in Terraform to verify the HTTP response code from an API request. One can also use this jsonschema_validator to do a more thorough check of JSON.

Open-source projects

JamesWoolfenden/pike — github.com

Pike is a tool for determining the permissions or policies required for IAC code. AB: Great work by James Woolfenden! 👍🔥

AzBuilder/terrakube — github.com

Open source tool to handle remote terraform workspace in organizations and handle all the lifecycle (plan, apply, destroy).

🔴 Terraform Serverless Patterns - September 2

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