Terraform + Ceph as S3 Backend

Terraform
1

Hi,

I have an error with a S3 backend with an internal Ceph storage: “api error XAmzContentSHA256Mismatch” when I run a terraform command.

My config:

terraform {
  required_version = ">= 1.6.0"
  backend "s3" {
    bucket                      = "maq-tf"
    use_path_style              = true
    encrypt                     = true
    key                         = "maq-ca-01"
    skip_credentials_validation = true
    skip_region_validation      = true
    skip_requesting_account_id  = true
  }
}

and env:

export TF_TOKEN_gitlab_my_domain="${CI_JOB_TOKEN:-$GITLAB_ACCESS_TOKEN}"
export AWS_ENDPOINT_URL_S3="https://my.s3.ceph.endpoint.com"
export AWS_REGION="myregion"
export AWS_ACCESS_KEY_ID="U147GACCESSKEYID"
export AWS_SECRET_ACCESS_KEY="szevNooRisecretaccesskey"
export AWS_SSE_CUSTOMER_KEY="Ep0UhppA+cC9Lvabase64encodedkey="

The SSE key is generated with:

openssl rand -base64 32

Of course, my bucket is configured for encryption:

# aws s3api get-bucket-encryption --bucket maq-tf
ServerSideEncryptionConfiguration:
  Rules:
  - ApplyServerSideEncryptionByDefault:
      SSEAlgorithm: AES256

What am I missing ?

Thanks you