Tagging Infrastructure with Terraform

Tags are one of the simplest ways to keep cloud infrastructure manageable, but in Terraform they can get messy fast: different tagging behavior across providers, “default” tags vs. per-resource tags, and constant drift as teams change conventions over time.

In the full guide, we cover:

• What tags are in Terraform and what teams use them for (ownership, cost allocation, environments, automation)
• How tagging differs across providers (and why the same pattern doesn’t always translate)
• Safe, scalable ways to apply tags consistently (including merging common tags with resource-specific ones)
• Provider-level defaults vs resource-level tags — and what to expect from tags_all where supported
• Practical tips to keep tagging predictable as your codebase and org grows

➡️ Read the full article on our blog:
https://spacelift.io/blog/terraform-tags