F/bedrock guardrails topic content modalities

[LoopyLulu]

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the library.

Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.

No

Description

This will allow configurations of the input and output modality settings for content filters, ie "TEXT" and/or "IMAGE".
There is a known issue that I'm not sure how to fix quickly, which is that the list ["TEXT", "IMAGE"] must be in this order like the AWS docs.

Relations

Closes #42924

References

AWS added image content filtering for Bedrock Guardrails at the end of March 2025.

[AWS API docs] (https://docs.aws.amazon.com/bedrock/latest/APIReference/API_CreateGuardrail.html)

Output from Acceptance Testing

Basic test:

% make testacc TESTS=TestAccBedrockGuardrail_basic PKG=bedrock     
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
make: Running acceptance tests on branch: 🌿 f/bedrock_guardrails_topic_content_modalities 🌿...
TF_ACC=1 go1.24.6 test ./internal/service/bedrock/... -v -count 1 -parallel 20 -run='TestAccBedrockGuardrail_basic'  -timeout 360m -vet=off
2025/09/21 18:22:24 Creating Terraform AWS Provider (SDKv2-style)...
2025/09/21 18:22:24 Initializing Terraform AWS Provider (SDKv2-style)...
=== RUN   TestAccBedrockGuardrail_basic
=== PAUSE TestAccBedrockGuardrail_basic
=== CONT  TestAccBedrockGuardrail_basic
--- PASS: TestAccBedrockGuardrail_basic (10.25s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/bedrock    14.451s
...

Created test:

% make testacc TESTS=TestAccBedrockGuardrail_contentModality PKG=bedrock
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
make: Running acceptance tests on branch: 🌿 f/bedrock_guardrails_topic_content_modalities 🌿...
TF_ACC=1 go1.24.6 test ./internal/service/bedrock/... -v -count 1 -parallel 20 -run='TestAccBedrockGuardrail_conentModality'  -timeout 360m -vet=off
2025/09/21 18:29:48 Creating Terraform AWS Provider (SDKv2-style)...
2025/09/21 18:29:48 Initializing Terraform AWS Provider (SDKv2-style)...
=== RUN   TestAccBedrockGuardrail_contentModality
=== PAUSE TestAccBedrockGuardrail_contentModality
=== CONT  TestAccBedrockGuardrail_contentModality
--- PASS: TestAccBedrockGuardrail_contentModality (10.35s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/bedrock    14.620s
...

[github-actions]

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