Error when using Minio bucket as terraform backend

[vpdevx]

Terraform Version

Terraform v1.10.2

Terraform Configuration Files

terraform {
  backend "s3" {
    bucket = "vinitfstate"
    key    = "tfstate"

    endpoints = { s3 = "https://minioapi.mydomain.xyz" }

    access_key = "my_access_key"
    secret_key = "my_secret_key"

    region                      = "main"
    use_path_style = true
    skip_region_validation = true
    skip_credentials_validation = true
    skip_metadata_api_check = true
    skip_requesting_account_id = true
    skip_s3_checksum = true
  }
}

Debug Output

Initializing the backend...
Initializing modules...
╷
│ Error: Error inspecting states in the "local" backend:
│     Unable to list objects in S3 bucket "vinitfstate" with prefix "env:/": operation error S3: ListObjectsV2, https response error StatusCode: 403, RequestID: xxxxxxxxxx, HostID: xxxxxxxx, api error SignatureDoesNotMatch: The request signature we calculated does not match the signature you provided. Check your key and signing method.
│ 
│ Prior to changing backends, Terraform inspects the source and destination
│ states to determine what kind of migration steps need to be taken, if any.
│ Terraform failed to load the states. The data in both the source and the
│ destination remain unmodified. Please resolve the above error and try again.

Expected Behavior

It should run smoothly

Actual Behavior

Getting 403 while trying to setup terraform backend as a bucket in Minio:
Initializing the backend...
Initializing modules...
╷
│ Error: Error inspecting states in the "local" backend:
│ Unable to list objects in S3 bucket "vinitfstate" with prefix "env:/": operation error S3: ListObjectsV2, https response error StatusCode: 403, RequestID: 1818DCEBCA790BDB, HostID: dd9025bab4ad464b049177c95eb6ebf374d3b3fd1af9251148b658df7ac2e3e8, api error SignatureDoesNotMatch: The request signature we calculated does not match the signature you provided. Check your key and signing method.
│
│ Prior to changing backends, Terraform inspects the source and destination
│ states to determine what kind of migration steps need to be taken, if any.
│ Terraform failed to load the states. The data in both the source and the
│ destination remain unmodified. Please resolve the above error and try again.

Steps to Reproduce

1. terraform init

Additional Context

No response

References

No response

Generative AI / LLM assisted development?

No response

[crw]

Hi @vpdevx, thanks for this report. You may also want to contact Minio to report that their S3-compatible storage is having S3 compatibility issues. I am making a guess that whatever is calculating the signature on their end is out of sync with something in the AWS SDK v2. Thanks!