Unexpected upstream (v18.26.5) breaking change

[tanvp112]

Welcome to Amazon EKS Blueprints!

• Yes, I've searched similar issues on GitHub and didn't find any.

Amazon EKS Blueprints Release version

v4.5.0

What is your environment, configuration and the example used?

https://github.com/aws-ia/terraform-aws-eks-blueprints/tree/main/examples/upstream-with-k8s-addons

What did you do and What did you see instead?

terraform init follow by terraform plan

 Error: Invalid index
│
│   on .terraform/modules/eks/main.tf line 211, in resource "aws_iam_openid_connect_provider" "oidc_provider":
│  211:   thumbprint_list = concat([data.tls_certificate.this[0].certificates[0].sha1_fingerprint], var.custom_oidc_thumbprints)
│     ├────────────────
│     │ data.tls_certificate.this[0].certificates is empty list of object
│
│ The given key does not identify an element in this collection value: the collection has no elements.

Additional Information

The data object is trying to get certificate from non-existence EKS (not yet create).

[FernandoMiguel]

I just saw that and was in the process of debug.
thanks for opening the ticket

[FernandoMiguel]

FYI this is in another module, not blueprints
https://github.com/terraform-aws-modules/terraform-aws-eks/blob/640a994/main.tf#L211

[FernandoMiguel]

here's a bug report there terraform-aws-modules/terraform-aws-eks#2173

[FernandoMiguel]

temp fix terraform-aws-modules/terraform-aws-eks#2170 (comment)

[bryantbiggs]

hashicorp/terraform-provider-tls#244