Malformed aws_security_group_rule causes crash, not syntax error - tf 0.6.4

[packplusplus]

If you use some malformed syntax in a security_group rule, you don't get syntax error, you get a crash.

provider "aws" {
}

resource "aws_security_group" "sg_test" {
  name = "sg_test"
}

resource "aws_security_group_rule" "sg_test_rule" {
  type = "ingress"
  from_port = 22
  to_port = 22
  protocol = "tcp"
  security_group_id = [ "${aws_security_group.sg_test.id}" ]
}

You can use this example to get the crash log, but the main error appears to be:

panic: Error reading level config: '' expected type 'string', got unconvertible type '[]interface {}'

terraform --version
Terraform v0.6.4

[catsby]

Thanks @packplusplus – this is related to validating computed values, in your example security_group_id is both malformed and computed. If you were to manually hardcode security_group_id you'd get the regular syntax error.

Fortunately, I just confirmed that this issue is fixed in #3009, so we'll close this when that gets merged.

Thanks for opening the issue!

[packplusplus]

+1 thanks @catsby

[apparentlymart]

Fixed by 8fdffb6

[catsby]

Thanks for the follow up, @apparentlymart

[packplusplus]

Verified fixed in 0.6.6. You're both great! Crashes scare me.

[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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