How to Migrate Terraform State Between Different Backends

The article discusses the process of migrating Terraform state files between different backends such as local storage, Azure Storage Account, or Amazon S3. It provides three methods to achieve this migration: using standard Terraform commands, using the terraform state pull and push commands, and using Terragrunt as a migration tool. The article also covers scenarios when you might need to migrate your Terraform state, such as moving to the cloud, switching cloud providers, centralizing state management, or cost optimization. It provides detailed steps for migrating local Terraform state to Azure Storage Account remote backend and AWS S3. Additionally, it explains how to manage Terraform state with Spacelift.