Terraform: aws_autoscaling_group > vpc_zone_identifier documentation error

[frntn]

The documentation says :

• vpc_zone_identifier : (Optional) A list of vpc IDs to launch resources in.

But I get the following error using an existing vpc :

* Error creating Autoscaling Group: ValidationError: The subnet ID 'vpc-198e497c' does not exist

The error says the subnet ID doesn't not exist ....because I didn't provide any subnet id :)

The terraform apply was successfull after giving the list of subnet (id instead of the list of vpc_id) :

vpc_zone_identifier = ["${aws_subnet.public-a.id}","${aws_subnet.public-b.id}"]

[frntn]

I have made a PR with the documentation update here https://github.com/hashicorp/terraform/pull/485

But now the vpc_zone_identifier argument/attribute name is not relevant anymore.
This issue may be considered as a core bug because you cannot give (arg) nor retrieve (attr) the VPC zone identifier.
(Not sure if i have been able to made myself clear...)

[mitchellh]

Fixed.

[ryanmaclean]

The original error has reared its head again when applying a VPC ID here:

aws_autoscaling_group.asg: Error creating Autoscaling Group: ValidationError: The subnet ID 'vpc-b9cc6fgf' does not exist

I'm assuming the docs should state that a list of VPC subnet IDs are needed, not the VPC ID, but the docs state "vpc_zone_identifier (Optional) - The VPC zone identifier".

Link to relevant doc page: https://www.terraform.io/docs/providers/aws/r/autoscaling_group.html

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