I’ve written a blog post on Spacelift.io about Terraform parallelism!
Provisioning infrastructure using a declarative infrastructure-as-code (IaC) tool such as Terraform or OpenTofu consists of two major steps: First, you write the code, and then the tool handles the rest.
Once the tool takes over, you can do little to influence how quickly resources are provisioned. Some resources require a significant amount of time to provision.
However, you can take some steps to reduce the time it takes to provision a specific Terraform configuration. One of these is to control the parallelism of operations that Terraform performs.
In this blog post, we will explore Terraform parallelism: what it is, how to manage it, and best practices for configuring parallelism in Terraform.
Read more over at spacelift.io/blog/terraform-parallelism
![[Spacelift.io] Terraform Parallelism: How It Works, Tuning & Best Practices](/blog/2025/terraform-parallelism/feature_hu_7820ec0631dab604.png)

![[Spacelift.io] Terraform Private Registry: Setup, Publishing & Best Practices](/blog/2025/terraform-private-registry/feature_hu_7a7e3c6f82e2b8ac.png)
![[Spacelift.io] How to Manage Dependencies Between Terraform Resources](/blog/2025/resource-dependencies/feature_hu_3adc8fb16471a1a1.png)
![[Spacelift.io] Atlantis with Terragrunt – Automate Terraform Workflows](/blog/2025/atlantis-terragrunt/feature_hu_2fa3e0b231a3d61e.png)