I wrote an article about working with `.terraform.lock.hcl` two years ago and had mostly forgotten about it. However, DOU recently reminded me by publishing a translation of it into Ukrainian. Interestingly, the content is still relevant today. The AWS provider (and many others) can still break your tfstate, as seen with the S3 lifecycle rules issue in v5.86.0.

For this specific edge case, you need integration tests via Terratest. However, there a good practice to pin your dependencies and test all updates, even with a simple tf plan. Unfortunately, this practice is still not widely adopted.

#terraform #hashicorp