Terraform crash with parameterized AWS provider version

[giorgio-v]

Maybe it’s not supported, but it’s the wrong behavior nonetheless.

Terraform Version

Terraform v0.10.8

Terraform Configuration Files

variable "aws_vers" {
    default = "1.1.0"
}

provider "aws" {
    version = "${var.aws_vers}"
    region = "eu-west-1"
}

Debug Output

https://gist.github.com/giorgio-v/a22c54fca50f970fc95e238ce37d4def

Crash Output

https://gist.github.com/giorgio-v/a22c54fca50f970fc95e238ce37d4def

Expected Behavior

https://gist.github.com/giorgio-v/a22c54fca50f970fc95e238ce37d4def

Actual Behavior

https://gist.github.com/giorgio-v/a22c54fca50f970fc95e238ce37d4def

Steps to Reproduce

Please list the full steps required to reproduce the issue, for example:

1. terraform init
2. terraform plan

Important Factoids

NA

References

NA

[apparentlymart]

Hi @giorgio-v! Sorry for this crash.

This seems to be the same as #15742. Indeed this isn't supposed to crash, but it also isn't intended to work either, because the provider dependency is a property of the configuration itself dealt with during terraform init, rather than something that can dynamically change per-run. (Variables are a per-run thing, so they are not usable in terraform init.)

As noted in #15742, we'll fix this by making it generate a proper error message rather than a crash, but making version constraints settable by variables is not possible.

I'm going to close this just to consolidate the discussion in #15742. Thanks for reporting this!

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

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