feat: Match AWS docs for bedrock bearer token variable

Rename AWS_BEDROCK_API_KEY to AWS_BEARER_TOKEN_BEDROCK to align
with the naming convention used in AWS Bedrock documentation and
the AWS web console UI. This reduces confusion when developers
compare LLS docs with AWS docs.

Author: ktdreyer

docs/docs/providers/inference/remote_bedrock.mdx

@@ -22,6 +22,6 @@ AWS Bedrock inference provider using OpenAI compatible endpoint.
 ## Sample Configuration
 
 ```yaml
-api_key: ${env.AWS_BEDROCK_API_KEY:=}
+api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
 region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
 ```

src/llama_stack/distributions/ci-tests/run-with-postgres-store.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/distributions/ci-tests/run.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/distributions/starter-gpu/run-with-postgres-store.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/distributions/starter-gpu/run.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/distributions/starter/run-with-postgres-store.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/distributions/starter/run.yaml

@@ -47,7 +47,7 @@ providers:
   - provider_id: bedrock
     provider_type: remote::bedrock
     config:
-      api_key: ${env.AWS_BEDROCK_API_KEY:=}
+      api_key: ${env.AWS_BEARER_TOKEN_BEDROCK:=}
       region_name: ${env.AWS_DEFAULT_REGION:=us-east-2}
   - provider_id: ${env.NVIDIA_API_KEY:+nvidia}
     provider_type: remote::nvidia

src/llama_stack/providers/remote/inference/bedrock/bedrock.py

@@ -111,7 +111,7 @@ async def openai_chat_completion(
                 logger.error(f"AWS Bedrock authentication token expired: {error_msg}")
                 raise ValueError(
                     "AWS Bedrock authentication failed: Bearer token has expired. "
-                    "The AWS_BEDROCK_API_KEY environment variable contains an expired pre-signed URL. "
+                    "The AWS_BEARER_TOKEN_BEDROCK environment variable contains an expired pre-signed URL. "
                     "Please refresh your token by generating a new pre-signed URL with AWS credentials. "
                     "Refer to AWS Bedrock documentation for details on OpenAI-compatible endpoints."
                 ) from e

src/llama_stack/providers/remote/inference/bedrock/config.py

@@ -27,6 +27,6 @@ class BedrockConfig(RemoteInferenceProviderConfig):
     @classmethod
     def sample_run_config(cls, **kwargs):
         return {
-            "api_key": "${env.AWS_BEDROCK_API_KEY:=}",
+            "api_key": "${env.AWS_BEARER_TOKEN_BEDROCK:=}",
             "region_name": "${env.AWS_DEFAULT_REGION:=us-east-2}",
         }

tests/unit/providers/inference/test_bedrock_config.py

@@ -9,7 +9,7 @@
 
 def test_bedrock_config_defaults_no_env(monkeypatch):
     """Test BedrockConfig defaults when env vars are not set"""
-    monkeypatch.delenv("AWS_BEDROCK_API_KEY", raising=False)
+    monkeypatch.delenv("AWS_BEARER_TOKEN_BEDROCK", raising=False)
     monkeypatch.delenv("AWS_DEFAULT_REGION", raising=False)
     config = BedrockConfig()
     assert config.auth_credential is None
@@ -35,5 +35,5 @@ def test_bedrock_config_sample():
     sample = BedrockConfig.sample_run_config()
     assert "api_key" in sample
     assert "region_name" in sample
-    assert sample["api_key"] == "${env.AWS_BEDROCK_API_KEY:=}"
+    assert sample["api_key"] == "${env.AWS_BEARER_TOKEN_BEDROCK:=}"
     assert sample["region_name"] == "${env.AWS_DEFAULT_REGION:=us-east-2}"