---
# generated by https://github.com/hashicorp/terraform-plugin-docs
page_title: "constellation_attestation Data Source - constellation"
subcategory: ""
description: |-
  Data source to fetch an attestation configuration for a given cloud service provider, attestation variant, and OS image.
---

# constellation_attestation (Data Source)

Data source to fetch an attestation configuration for a given cloud service provider, attestation variant, and OS image.

## Example Usage

```terraform
data "constellation_image" "example" {} # Fill accordingly for the CSP

data "constellation_attestation" "test" {
  csp                 = "aws"
  attestation_variant = "aws-sev-snp"
  image               = data.constellation_image.example.image
}
```

<!-- schema generated by tfplugindocs -->
## Schema

### Required

- `attestation_variant` (String) Attestation variant the image should work with. Can be one of:
  * `aws-sev-snp`
  * `aws-nitro-tpm`
  * `azure-sev-snp`
  * `azure-tdx`
  * `gcp-sev-es`
  * `qemu-vtpm`
- `csp` (String) CSP (Cloud Service Provider) to use. (e.g. `azure`)
See the [full list of CSPs](https://docs.edgeless.systems/constellation/overview/clouds) that Constellation supports.
- `image` (Attributes) Constellation OS Image to use on the nodes. (see [below for nested schema](#nestedatt--image))

### Optional

- `insecure` (Boolean) DON'T USE IN PRODUCTION Skip the signature verification when fetching measurements for the image.
- `maa_url` (String) For Azure only, the URL of the Microsoft Azure Attestation service

### Read-Only

- `attestation` (Attributes) Attestation comprises the measurements and CVM specific parameters. (see [below for nested schema](#nestedatt--attestation))

<a id="nestedatt--image"></a>
### Nested Schema for `image`

Required:

- `reference` (String) CSP-specific unique reference to the image. The format differs per CSP.
- `short_path` (String) CSP-agnostic short path to the image. The format is `vX.Y.Z` for release images and `ref/$GIT_REF/stream/$STREAM/$SEMANTIC_VERSION` for pre-release images.
- `$GIT_REF` is the git reference (i.e. branch name) the image was built on, e.g. `main`.
- `$STREAM` is the stream the image was built on, e.g. `nightly`.
- `$SEMANTIC_VERSION` is the semantic version of the image, e.g. `vX.Y.Z` or `vX.Y.Z-pre...`.
- `version` (String) Semantic version of the image.

Optional:

- `marketplace_image` (Boolean) Whether a marketplace image should be used.


<a id="nestedatt--attestation"></a>
### Nested Schema for `attestation`

Read-Only:

- `amd_root_key` (String)
- `azure_firmware_signer_config` (Attributes) (see [below for nested schema](#nestedatt--attestation--azure_firmware_signer_config))
- `bootloader_version` (Number)
- `measurements` (Attributes Map) (see [below for nested schema](#nestedatt--attestation--measurements))
- `microcode_version` (Number)
- `snp_version` (Number)
- `tdx` (Attributes) (see [below for nested schema](#nestedatt--attestation--tdx))
- `tee_version` (Number)
- `variant` (String) Attestation variant the image should work with. Can be one of:
  * `aws-sev-snp`
  * `aws-nitro-tpm`
  * `azure-sev-snp`
  * `azure-tdx`
  * `gcp-sev-es`
  * `qemu-vtpm`

<a id="nestedatt--attestation--azure_firmware_signer_config"></a>
### Nested Schema for `attestation.azure_firmware_signer_config`

Read-Only:

- `accepted_key_digests` (List of String)
- `enforcement_policy` (String)
- `maa_url` (String)


<a id="nestedatt--attestation--measurements"></a>
### Nested Schema for `attestation.measurements`

Read-Only:

- `expected` (String)
- `warn_only` (Boolean)


<a id="nestedatt--attestation--tdx"></a>
### Nested Schema for `attestation.tdx`

Read-Only:

- `intel_root_key` (String)
- `mr_seam` (String)
- `pce_svn` (Number)
- `qe_svn` (Number)
- `qe_vendor_id` (String)
- `tee_tcb_svn` (String)
- `xfam` (String)
