for_each crashes on null_resource with local-exec provisioner

[adarobin]

Terraform Version

Terraform v0.12.6
+ provider.null v2.1.2

Terraform Configuration Files

variable "test" {
    default = {
        foo = "bar"
    }
}

resource "null_resource" "test" {
    for_each = var.test

    triggers = {
        foo = each.key
    }

    provisioner "local-exec" {
        command = "echo ${each.value}"
    }
}

Debug Output

https://gist.github.com/adarobin/5c7a6449bd6c2a0ace6550f9f64219a7

Crash Output

https://gist.github.com/adarobin/16994b75a44f3bd8eff8efa9287d4d22

Expected Behavior

The apply was successful.

Actual Behavior

Terraform crashed

Steps to Reproduce

1. terraform init
2. terraform apply

Additional Context

Interestingly, this works and does not crash

variable "test" {
    default = {
        foo = "bar"
    }
}

resource "null_resource" "test" {
    for_each = var.test

    triggers = {
        foo = each.key
    }

    provisioner "local-exec" {
        command = "echo ${var.test[each.key]}"
    }
}

References

[pselle]

@adarobin Thank you for this report! I believe it's a duplicate of #22289, and there's a fix in master that will go out in the next release of Terraform (0.12.7), and I'll leave this open until that's out to help future reporters. Thank you!

[xbaran]

Same problem here.

[FrantisekLee]

The same problem...

[pselle]

Terraform 0.12.7 (with this fix) is now released! https://github.com/hashicorp/terraform/blob/v0.12.7/CHANGELOG.md

[ghost]

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