Incompatibility between fe provider and terraform 1.6.X

[xfrancois]

Hello,
It seems that flexible-engine provider is broken with terraform 1.6.X

Tested with :

• Terraform 1.6.0, 1.6.1, 1.6.2, 1.6.4, 1.6.4
• Flexible engine provider 1.42.0, 1.43.0
• S3 Backend

backend "s3" {
    bucket                      = "terraform-bucket-cce-tools-ext-itg"
    key                         = "terraform-itg.tfstate"
    region                      = "eu-west-0"
    endpoint                    = "https://oss.eu-west-0.prod-cloud-ocb.orange-business.com"
    skip_region_validation      = true
    skip_credentials_validation = true
    skip_metadata_api_check     = true
  }

A terraform init with terraform 1.6.X is failing with the following error :

Initializing the backend...
│ Warning: Deprecated Parameter
│ 
│   on required_providers.tf line 9, in terraform:
│    9:     endpoint                    = "https://oss.eu-west-0.prod-cloud-ocb.orange-business.com"
│ 
│ The parameter "endpoint" is deprecated. Use parameter "endpoints.s3" instead.
╵

│ Error: Retrieving AWS account details: AWS account ID not previously found and failed retrieving via all available methods.
│ 
│ See https://www.terraform.io/docs/providers/aws/index.html#skip_requesting_account_id for workaround and implications.
│ Errors: 2 errors occurred:
│       * retrieving caller identity from STS: operation error STS: GetCallerIdentity, https response error StatusCode: 0, RequestID: , request send failed, Post "https://sts.eu-west-0.amazonaws.com/": dial tcp: lookup sts.eu-west-0.amazonaws.com on <ip>:53: no such host
│       * retrieving account information via iam:ListRoles: operation error IAM: ListRoles, https response error StatusCode: 403, RequestID: 3206fee4-1f32-4d09-9b55-c29b9a165a18, api error InvalidClientTokenId: The security token included in the request is invalid.

Steps to Reproduce

1. Install terraform 1.6.4
2. Use flexibleengine provider with version 1.43.0
3. Do a terraform init

[xfrancois]

It seems to be related to this issue : hashicorp/terraform#33981
A workaround is to have this configuration :

backend "s3" {
    bucket                      = "terraform-bucket-cce-tools-ext-itg"
    key                         = "terraform-itg.tfstate"
    region                      = "eu-west-0"
    endpoints                   = { s3 = "https://oss.eu-west-0.prod-cloud-ocb.orange-business.com" }
    skip_requesting_account_id  = true
    skip_s3_checksum            = true
    skip_region_validation      = true
    skip_credentials_validation = true
    skip_metadata_api_check     = true
  }

After more investigation, it seems to be related to evolution on s3 backend since terraform 1.6.X more than flexible engine provider. Feel free to close this issue in this case.

[ShiChangkuo]

@xfrancois Thank you for reporting, we will update the backend guide according to terraform 1.6.X.

[irishgordo]

@xfrancois thank you so much for linking that work-around - I was struggling to get this to work but with that workaround it seems to be good - ty!